JX-ESPC-101133-B

JEM Payload Accommodation Handbook- Vol. 8 Small Satellite Deployment
Interface Control Document

Initial Release: March, 2013
Revision A: May, 2013
Revision B: January, 2015
Japan Aerospace Exploration Agency (JAXA)JX-ESPC-101133-B

REVISION HISTORY
Rev.

Date

DescriptionNC

2013/03-A

2013/05
Refer to JMX-2013116

B

2015/01
Refer to JMX-2014444

C

D

i

Remarks
Initial Release

JX-ESPC-101133-B

Contents
1. Introduction ................................................................................................................ 1
1.1. Overview ................................................................................................................. 1
1.2. Scope ........................................................................................................................ 1
1.3. Documents .............................................................................................................. 2
1.3.1. Applicable Documents ........................................................................................ 2
1.3.2. Reference Documents ......................................................................................... 3
2. Interface Requirements for 10cm Class Satellite .................................................... 4
2.1. Mechanical Interfaces ............................................................................................ 4
2.1.1. Coordinate System.............................................................................................. 4
2.1.2. Dimensional Requirements ................................................................................ 4
2.1.3. Rails ..................................................................................................................... 5
2.1.4. Envelope Requirements ..................................................................................... 5
2.1.5. Mass Properties .................................................................................................. 8
2.1.6. Separation Spring ............................................................................................... 8
2.1.7. Access Window .................................................................................................. 10
2.1.8. Structural Strength .......................................................................................... 10
2.1.9. Stiffness ............................................................................................................. 10
2.2. Electrical Interface ............................................................................................... 122.2.1. Deployment Switch ........................................................................................... 122.2.2. RBF(Remove Before Flight) Pin ...................................................................... 13
2.2.3. Bonding.............................................................................................................. 13
2.2.4. RF....................................................................................................................... 13
2.3. Operational Requirements .................................................................................. 15
2.4. Environmental Requirements ............................................................................. 16
2.4.1. Random Vibration and Acceleration ................................................................ 16
2.4.2. On-orbit Acceleration ........................................................................................ 17
2.4.3. Pressure Environment ..................................................................................... 17
2.4.4. Thermal Environment ...................................................................................... 18
2.4.5. Humidity Environment .................................................................................... 18
2.5. Out-gassing ........................................................................................................... 18
3. Interface Requirements for 50cm Class Satellite .................................................. 19
3.1. Mechanical Interfaces .......................................................................................... 19
3.1.1. Coordinate System............................................................................................ 19
3.1.2. Dimensional Requirements .............................................................................. 20
3.1.3. Rails ................................................................................................................... 20
3.1.4. Envelope Requirements ................................................................................... 21
3.1.5. Mass Properties ................................................................................................ 24
3.1.6. Separation Spring ............................................................................................. 24
3.1.7. Access Window .................................................................................................. 26ii

JX-ESPC-101133-B

3.1.8. Structural Strength .......................................................................................... 27
3.1.9. Stiffness ............................................................................................................. 27
3.1.10. Ground Handling .............................................................................................. 27
3.2. Electrical Interfaces ............................................................................................. 28
3.2.1. Deployment Switch ........................................................................................... 28
3.2.2. RBF(Remove Before Flight) Pin ...................................................................... 29
3.2.3. Bonding.............................................................................................................. 29
3.2.4. RF....................................................................................................................... 29
3.3. Operational Requirements .................................................................................. 29
3.4. Environmental Requirements ............................................................................. 29
3.5. Out-gassing ........................................................................................................... 29
4. Safety Assurance Requirements ............................................................................. 30
4.1. Generic Requirements.......................................................................................... 30
4.2. Safety Assessment ................................................................................................ 32
4.2.1. Implementation of Safety Assessment ............................................................ 32
4.2.2. Safety Design Guidelines ................................................................................. 33
4.2.2.1.
Standard Hazards ......................................................................................... 33
4.2.2.2.
Unique Hazards ............................................................................................ 34
4.3. Compatibility with Safety Requirements for Deployable Satellite from ISS andSpace Debris Mitigation Guidelines .............................................................................. 35
4.3.1. Compatibility with Safety Requirements for Deployable Satellite from ISS 35
4.3.1.1.
Deployable Satellite Design Requirements ................................................. 35
4.3.1.1.1.
Ballistic Number........................................................................................ 35
4.3.1.1.2.
Deployment Analysis ................................................................................. 35
4.3.1.1.3.
Propulsion Systems ................................................................................... 35
4.3.1.1.4.
Deployable Subcomponents ...................................................................... 35
4.3.1.2.
Satellite Deployer Requirements ................................................................. 36
4.3.1.2.1.
Generic Requirements ............................................................................... 36
4.3.1.2.2.
J-SSOD Requirements .............................................................................. 36
4.3.2. Compatibility with Space Debris Mitigation Guidelines ............................... 37
5. Requirements for Control ........................................................................................ 38
5.1. Quality and Reliability Control ........................................................................... 38
5.2. Application for Approval and Authorization ...................................................... 38
5.3. Verification ............................................................................................................ 38
5.4. Safety Review and Design Review ...................................................................... 39
5.5. Process Control ..................................................................................................... 40
5.6. Preparation for Delivery to JAXA ....................................................................... 40iii

JX-ESPC-101133-B

Appendices

Appendix A
Appendix B
Appendix C
Appendix D
Appendix E

System Description and Operational Overview
Correspondence to CubeSat Design Specification, Rev.12
Verification Matrix
J-SSOD / Satellite Interface Verification Record
Abbreviation and Acronyms

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JX-ESPC-101133-B

1. Introduction
1.1.

Overview

This document defines the technical interface requirements and safety requirements
for a satellite to be released from the JEMRMS using the JEM Small Satellite Orbital
Deployer (J-SSOD).
A satellite provider shall show the compliance that the satellite meets therequirements defined in this document.
The interface requirements between the J-SSOD and a satellite are developed basedon the reference document (1) CubeSat Design Specification rev.12 published on
August 1st, 2009 by the California Polytechnic State University with JEM uniquerequirements. (Refer to Appendix B “Correspondence to CubeSat Design Specification,
Rev.12”)

1.2.

Scope

The interface requirements between the J-SSOD and a satellite in this document are
applied to the satellite to be deployed from the JEMRMS.
The requirements defined in this document assume that the satellites will be
un-powered from the launch to the deployment.
(So if a satellite requires the activation before the deployment in such case that acrew will access the satellite for the activation, the additional requirements such as the
EMC will be addressed and the satellite shall meet these requirements.)

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JX-ESPC-101133-B

1.3.
Documents
1.3.1. Applicable Documents
The latest versions of the following documents form a part of this document to theextent specified in this document. In the event of a conflict between the documents
referenced herein and the contents of this specification, the contents of thisspecification shall be considered a superseding requirement.
(1) JSX-2010026

On-orbit Safety Requirements for a small satellite using
J-SSSOD (Japanese Only)(2) JMR-006
Configuration Control Standard (Japanese Only)(3) CR-99117
JAXA Requiremetns for ISS Program Materials and Process
Control (Japanese Only)(4) CR-99218
JEM Materials Selection List (Japanese Only)(5) MSFC-HDBK-527F MATERIALS SELECTION LIST FOR SPACE HARDWARE(JSC-0904F)
SYSTEMS(6) JMR-003
Space Debris Mitigation Standard (Japanese Only)(7) ASTM-E595-84
Standard Test Method for Total Mass Loss and Collected
Volatile Condensable Materials from Outgassing in a
Vacuum Environment(8) MIL-A-8625
Anodic Coatings for Aluminum and Aluminum Alloys(9) JMX-2012164
JSC Frequency Authorization Input FormAppendix-2(10) JSC Form 1230
Flight Payload Standardized Hazard Control Report(11) ATV/HTV/KSC
Integrated Safety Checklist for ISS Cargo At Launch or
From 100
Processing Sites(12) JMX-2012694
Structure Verification and Fracture Control Plan for JAXA
Selected Small Satellite Released from J-SSOD(13) SSP51700
Payloads Safety Policy and Requirements for theInternational Space Station(14) SSP52005
Payload Flight Equipment Requirements and Guidelines for
Safety-Critical Structures(15) NASA-STD-5003
Fracture Control Requirements for Payloads using the Space
Shuttle(16) NSTS/ISS-13830C Payload Safety Review and Data Submittal Requirements(17) SSP50005
ISS Flight Crew Integration Standard(18) SSP30233
Space Station Requirements for Materials and Process(19) IADC-02-01
IADC Space Debris Mitigation Guidelines

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JX-ESPC-101133-B

1.3.2. Reference Documents
The following documents are referenced to develop this document.
(1) NASDA-ESPC-1681A JEM Payload Safety & Product Assurance Requirements(Japanese Only)(2) CubeSat Design Specification rev.12(issued by California Polytechnic State University on 2009/08/01)(3) SSP57003
Attached Payload Interface Requirements Document(57003-NA-0114
Correct Link for the JSC Frequency Management Homepage
in 3.2.2.4.10, and Add New Radio Frequency Certification
Requirement
57003-NA-0115A
Add Deployable Payload Requirements to SSP 57003 and
SSP 57004)(4) SSP50835
ISS Pressurized Volume Hardware Common Interface
Requirements Document(5) NASDA-ESPC-2857 HTV Cargo Standard Interface Requirements Document(6) SSP57000
Pressurized Payload Interface Requirements Document(7) IEEE C95.1-2005
IEEE Standard for Safety Levels with Respect to Human
Expose to Radio Frequency Electromagnetic Fields （sec
4.2.1, sec 4.2.3, sec 4.3）
(8) SSP30243(9) SSP30237

Space
StationRequirementsforElectromagnetic
Compatibility (sec 3.2.3)
Space Station Electromagnetic Emission and Susceptibility
Requirements” (sec 3.2.4.2.2)

3

JX-ESPC-101133-B

2. Interface Requirements for 10cm Class Satellite
2.1.
Mechanical Interfaces
2.1.1. Coordinate System
The definitions of the coordinate systems are as follows.
 J-SSOD Coordinate System:(Xs、Ys、Zs)
 Satellite Body Coordinate System:(X、Y、Z)
Zs and Z axes are located in the center of the Satellite Install Case and theSatellite, respectively.
(1) When a satellite is installed in the Satellite Install Case of the J-SSOD, all axes forboth coordinate systems are aligned.
(2) +Z (+Zs) is towards the direction of the deployment. -Z (-Zs) towards the direction of
the installation into the case. +Y (+Ys) towards the base-point of the case.


XS
ZS
X

YS

Z
Y
Figure 2.1.1-1 Coordinate System Definition

2.1.2. Dimensional Requirements(1) The type of satellite which can be accommodated in the J-SSOD is defined in the
Table 2.1.2-1 and the dimensional requirements are defined in the Figure 2.1.2-1.
(2) A satellite shall be 100+/-0.1 mm wide in X and Y per Figure 2.1.2-1.
(3) For 1U type satellite, a satellite shall be 113.5+/-0.1 mm tall in Z per Figure
2.1.2-1.
(4) For 2U type satellite, a satellite shall be 227.0+/-0.1 mm tall in Z per Figure
2.1.2-1.
(5) For 3U type satellite, a satellite shall be 340.5+/-0.3mm tall in Z per Figure
2.1.2-1.
Table 2.1.2-1 Satellite TypeRail
Exterior Dimensions (*1)
Reference Figure
Dimension
1U
X:100×Y:100×Z:113.5mm
10cm
more thanclass
2U
X:100×Y:100×Z:227.0mm
Figure 2.1.2-1
8.5mm squres
satellite
3U
X:100×Y:100×Z:340.5mm(*1)Nominal dimension including rails

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JX-ESPC-101133-B

2.1.3. Rails(1) A satellite shall have four rails on each corner along the Z axis to slide along therail guides in the Satellite Install Case of the J-SSOD during ejection into orbit.
(2) The dimensional requirements are defined in the section 2.1.2 and the Figure
2.1.2-1.
(3) The rails shall have a minimum width of 8.5 mm.
(4) The rails shall not have a surface roughness greater than Ra1.6m(5) For 1U and 2U type satellite, the edges of the rails (+/-Z standoffs) shall be
rounded to a radius of at least 1mm.
(As for sharp edges on surfaces of a satellite which crew may access, refer tosection 4.2.2(1).)(6) The edges of the rails on the +Z face shall have a minimum surface area of 6.5mm
x 6.5mm for contacting with the adjacent satellite.
(7) At least 75% of the rail surfaces except for +/-Z surfaces shall be in contact withthe rail guides of the Satellite Install Case of the J-SSOD. 25% of the rails can berecessed.
For the 1U type, this means at least 85.1 mm of rail contacts with the rail guide.
For the 2U type, this means at least 170.3 mm of rail contacts with the rail guide.
For the 3U type, this means at least 255.4mm of rail contacts with the rail guide.
(8) The rail surfaces which contact with the rail guides of the J-SSOD Satellite Install
Case and the rail standoffs which contact with adjacent satellites shall be hardanodized aluminum after machining process. The thickness of the hard anodized
coating shall be more than 10μm according to MIL-A-8625, Type3.

2.1.4. Envelope Requirements(1) The dynamic envelope of a satellite shall meet the Figure 2.1.4-1.
(2) The main structure of a satellite in +Z shall be recessed more than 7.0mm fromthe edge of the rails. All components in +Z shall be recessed more than 0.5mm
from the edges of the rails.
(3) The main structure of a satellite in -Z shall be recessed more than 6.5mm from theedge of the rails. All components in -Z shall be recessed from the edges of the rails.
(4) The main structures of a satellite in +/-X and +/-Y shall not exceed the side surfaceof the rails. Any components in these surfaces shall not exceed 6.5mm normal to
the side surface of the rails including the RBF pin discussed in the section 2.2.2.
(5) Any deployable components shall be constrained by a satellite itself. The J-SSOD
rail guides and walls shall not be used to constrain these deployable components.
(6) If any deployable components make contact with the inside wall of the J-SSOD
Satellite Install Case in their unintentional deployment, the contact surface of the
deployable components shall have more than 1mm thickness. (If deployable
components have two failure tolerance against unintentional deployment based on
the JSX-2010026 even after the RBF pin removal, this section in not applicable.)
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JX-ESPC-101133-B
1U: Ha=113.5±0.1 (*2)
2U: Ha=227±0.1 (*2)
3U: Ha=340.5±0.3
0.2
0.2

Z

Y

(Common tolerance zone
in 2 places）

8.5min（Diagonal 2 places）

Z(*2)Rails for Deployment Switches

0.2
Y(Common tolerance zone
in 2 places）

Ha(Surface of the rail)

7min

4 – at least R1

1.6m

6.5min8.5min(2 places)

100±0.1

Rails+Z Plane
+X

+Y

Y

0.2
Z
(Common tolerance zone
in 2 places）+Y

See Note 3)

Hb
1U: Hb=111.5±0.1 (*1)
2U: Hb=225±0.1 (*1)
3U: Hb=340.5±0.3

100±0.1(2 places)【Note】
1)
2)
3)
4)

Satellite
Structure+Z

Unite: mm
All values shall be met after the surface coating
Main structures of a satellite in ±X、±Y shall not
exceed the edge of the rails
Bold portion （ ） shall be rounded in at least
R1. (Also applicable for –Z plane.)

0.2

Z

Y

（Common tolerancezone in 2 places）

Z（Diagonal 2 places）(*1)Rails for Separation Spring

0.2（Common tolerance zone in 4 places）

Figure 2.1.2-1 Dimensional Requierments for Satellite
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JX-ESPC-101133-B

Common for four positions
6.5
8.5
Common for four positions
Rail
8.5

6.5

0.5

Satellite Structure+Z±Z plane
Allowable
Dynamic
Envelope(See Note3))【Note】
1) Unit: mm2) Any components shall be recessed from the edge of the -Z rail ends.
3) All external components shall be within the dynamic envelope.
Figure 2.1.4-1 Allowable Dynamic Envelope
7

See Note 2)+YJX-ESPC-101133-B

2.1.5. Mass Properties(1) The mass of a satellite shall be larger than 0.13kg and less than 1.33kg per 1U.
(2) The ballistic number (BN) of a satellite in the configuration that the satellite is
installed in the J-SSOD Satellite Install Case, i.e. all deployables are stowed, shallbe no greater than 100 kg/m2. BN shall be calculated by the following formula.
BN = M/ (Cd･A) [kg/m2]
M : The mass of a satellite [kg]Cd : Coefficient of Drag (=2) [ND]
A : Average Frontal Area [m2] (Average of projected area of a satellite XY, YZ, ZX
plane)(3) For 1U or 2U type satellite, the center of gravity for a satellite shall be locatedwithin a sphere of 20 mm from its geometric center. For 3U type satellite, thecenter of gravity for a satellite shall be located within 20mm radius from Zs axis.

2.1.6. Separation Spring(1) As a separation spring, the 1U and 2U type satellite shall have two spring
plungers which are provided by JAXA (P/N：251D939002-1) at the standoff of the
diagonal pair of rails as shown in the Figure 2.1.6-2. The flange of the spring
plungers shall be firmly contacted at the standoff of the rails as shown in the
Figure 2.1.6-1.
(2) The separation springs are not required for the 3U type satellite.

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JX-ESPC-101133-B

Deployment Direction

Satellite

Satellite

Backplatewith a main
springSatellite

(2mm)

Rail

Spring Plunger-Z plane
Rail Standoff
Flange of Spring
Plunger
Figure 2.1.6-1 Overview of multiple satellites installation with spring plungers-Z plane（Option 1）-Z plane（Option 2）+X

A+Y
Deployment Switch
Separation Spring (See below)

M5×0.8, thread depth 19 Min

4.25

8.5 MinSatellite
Body

4.25

Unit: mm
8.5 Min

Detail A (Detail Information for Separation Spring Interface)
Figure 2.1.6-2 Position of Separation Spring and Deployment Switch
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φ0.3

JX-ESPC-101133-B

2.1.7. Access Window(1) Access to satellites after installation into the J-SSOD Satellite Install Case can be
performed from the –Ys or +Xs as shown in the Figure 2.1.7-1.
(2) All equipments such as the RBF pin and connectors to be accessed after the
installation into the J-SSOD Satellite Install Case shall be located in the area of
the access windows.

2.1.8. Structural Strength(1) A satellite shall have a sufficient structural strength with a necessary margin ofsafety through the ground operation, testing, ground handling, launch andon-orbit operations. Launch environment is defined in the section 2.4.1.
(2) Each rail shall have a sufficient structural strength with considering that the rail
is subject to compression force at 46.6 N due to a preload from the Backplate andmain spring of J-SSOD.

2.1.9. Stiffness
The minimum fundamental frequency of a satellite shall be no less than 100 [Hz] on
the condition that the four rails +/-Z standoffs are rigidly fixed. If the minimum
fundamental frequency of the satellite is less than 100 [Hz], coordination with JAXA isneeded since a random vibration environment subjected to the satellite may exceed theenvironment defined in the section 2.4.1(1) (b).

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JX-ESPC-101133-B(12)(113.5)(86.5)

AccessWindow

75.9

+Z

(27)

Z
(227)
(86.5)(12)(27)

AccessWindow(75.9)+Z(27)(86.5)

AccessWindow

Z(340.5)(27)(86.5)(27)(86.5)+Z(75.9)(12)(27)

AccessWindow

AccessWindow(86.5)

AccessWindowZ【Note】
1) Unit: mm2) All dimensions are nominal values (without tolerance).
3) Refer to Figure 2.1.2-1 for the definition of surface Z.

Figure 2.1.7-1 Nominal Position of Access Window in -Ys(-Y)/+Xs(+X)
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JX-ESPC-101133-B

2.2.
Electrical Interface
2.2.1. Deployment Switch(1) A satellite shall have two or more deployment switches on the rail standoffs in -Z
as shown in the Figure 2.1.6-2 in order to prevent the activation of the satellite in
the J-SSOD Satellite Install Case. The deployment switches may be installed in
the side of the rail (X or/and Y direction) if there is no impact on the deployment
conditions such as reduction of the deployment speed.
(2) When one of the deployment switches remains depressed, a satellite shall not be
activated. The definition of the depressed conditions is up to 0.75 mm maximum
from the surface of the rail standoff as shown in the Figure 2.2.1-1. When the
deployment switches are located in the side of the rail, those switches shall not be
activated prior to the deployment considering the manufacturing and assembly
tolerance of the satellite and the switches.
(3) If necessary, a battery charging needs to be enabled with the deployment switches
depressed.
(4) The stroke of the deployment switch shall be less than 2.0 mm from the surface ofthe rail standoffs as shown in the Figure 2.2.1-1.
(5) The force generated by a deployment switch shall be no greater than 3N for each.
(6) A satellite shall have at least three inhibits for its activation by a solar cell or abattery as indicated in the section 4.2.2.2 (2), (3). An example of theimplementation for this requirement is; a satellite shall have three deployment
switches, or two deployment switches and one RBF pin. One of inhibits shall beplaced on the ground return of the circuits. An example of two deployment
switches arrangement on a circuit is shown in the Figure 2.2.1-2. If alternative
implementation is selected, the proposed three inhibits shall be coordinated with
JAXA.
Depressed
0.75mm max

Deployment Switch

2.0 mm max
Rail Standoff (-Z)
Allowable Stroke

Figure 2.2.1-1 Depressed Condition and Allowable Stroke of Deployment Switches

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JX-ESPC-101133-B

RBF pin
Deployment SW 1

Solar Cell

Battery

Load

Deployment SW 2

Figure 2.2.1-2 Example of two Deployment Switches and the RBF pin Arrangement

2.2.2. RBF(Remove Before Flight) Pin(1) When it is impossible for three deployment switches to be installed in a satellite,
RBF pin may be used for compliance with the requirement as indicated in thesection 4.2.2.2 (2), (3).
(2) The RBF pin shall be accessible from the access window shown in the Figure
2.1.7-1.
(3) The RBF pin shall cut all power to a satellite once it is inserted into the satellite.
An example of the RBF pin arrangement on a circuit is shown in the Figure
2.2.1-2.
(4) The RBF pin shall be within the envelope as shown in the Figure 2.1.4-1 when it isfully inserted to a satellite.
(5) A tether shall be attached to the RBF pin for crew to remove the RBF pin easily
and prevent the RBF pin from losing. The tether is not subject to the Envelope
Requirements defined in the section 2.4.1, but a satellite shall be able to be loaded
into the J-SSOD Satellite Install Case with the tether attached.

2.2.3. Bonding(1) A satellite shall have a bonding interface on the side of the access window in casethat access is required when it is installed in the J-SSOD Satellite Install Case.

2.2.4. RF(1) Frequency and Current Limit
If downlink frequency below 110 MHz is used, maximum current in the circuits
shall not exceed 50 mA. (If RF transmitters have two failure tolerance based on
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JX-ESPC-101133-B

the JSX-2010026 against their unintentional radiation in the J-SSOD Satellite
Install Case even after the RBF pin removal, this section in not applicable.)(2) Allowable RF Radiation Levels
RF radiation levels shall not exceed values of Table 2.2.4-1. (If RF transmittershave two failure tolerance based on the JSX-2010026 against their unintentionalradiation in the J-SSOD Satellite Install Case even after the RBF pin removal,
this section in not applicable.)

Table 2.2.4-1 Maximum allowable level for RF radiation＊
Frequency range
Allowable
Allowable
Output power（only reference）
Electric Field level
power density
14 kHz to 200 MHz

1.58 V/m (124dBμV/m)

0.0066 (W/m2)

0.075 (W)

19 V/m (145.6dBμV/m)

0.955 (W/m2)

11 (W)

8GHz to 10 GHz

6.3 V/m (136dBμV/m)

0.106 (W/m2)

1.6 (W)

10 GHz to 13.3 GHz（linear interpolation）（linear interpolation）（linear interpolation）

58 V/m (155dBμV/m)

8.93 (W/m2)

113 (W)

200 MHz to 8 GHz

13.3 GHz to 15.2 GHz＊ Hazard severity should be determined by “Allowable Electric Field level” or“Allowable power density.” However, if output power does not exceed “Output power(only reference)” with antenna-gain included, hazard severity can be regarded as
marginal.

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JX-ESPC-101133-B

2.3.

Operational Requirements(1) A satellite provider shall assume that the maximum stowage duration may be
about 1 year until the deployment after installation in the J-SSOD Satellite
Install Case on the ground.
(2) A satellite provider will not plan any activation, checkout or maintenance after
installation in the J-SSOD Satellite Install Case on the ground.
(3) A satellite shall have a capability to survive in the cold launch environment. The
satellite shall maintain deactivated from installation in the J-SSOD Satellite
Install Case on the ground to the deployment.
(4) All deployables such as booms, antennas, and solar panels shall wait to deploy for
30 minutes at minimum after the deployment switches are activated at ejection of
the satellite from the J-SSOD. Whenever either of two deployment switches isre-depressed, the timer shall be reset.
(5) RF transmissions shall wait to transmit for 30 minutes at minimum after the
deployment switches are activated at ejection of the satellite from the J-SSOD.
Whenever either of two deployment switches is re-depressed, the timer shall bereset.
(6) The order of satellite installation into the J-SSOD Satellite Install Case and asatellite deployment window will not be constrained by a satellite design. If suchconsideration is required for the mission success, an additional coordination isrequired with JAXA.

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JX-ESPC-101133-B

2.4.

Environmental Requirements

A satellite shall be designed, analyzed and/or tested with the following
environmental conditions based on the reference documents (4)~(6). As for a JAXA
selected satellite, the launch vehicle will be determined by JAXA.

2.4.1. Random Vibration and Acceleration(1) Launch(a) Quasi-static Acceleration in any direction:- HTV: 8.34 [g].
- ATV : 12.37 [g].
- SpX : 8.67 [g].
- Orbital Cygnus: 18.1 [g].
(b) Random Vibration: Refer to Table 2.4.1-1 and Figure 2.4.1-1.
Table 2.4.1-1 Random Vibration of each launch vehicle
ATV
SpX Dragon
Orbital Cygnus

HTV
Freq.
(Hz)

PSD
(g2/Hz)

Freq.
(Hz)

PSD
(g2/Hz)

Freq.
(Hz)

PSD
(g2/Hz)

Freq.
(Hz)

PSD
(g2/Hz)

20

0.005

20

0.01

20

0.015

20

0.005

50

0.02

100

0.05

25.6

0.027

70

0.04

120

0.031

400

0.05

30

0.08

200

0.04

230

0.031

2000

0.001

80

0.08

2000

0.002

1000

0.0045

2000

0.001

2000

0.0013Overall(grms)

4.0

Overall(grms)

5.48

Overall(grms)

4.06

Overall(grms)

4.4

Duration(sec)

60

Duration(sec)

60

Duration
(sec)

7.2

Duration
(sec)

60

16

JX-ESPC-101133-B

Figure 2.4.1-1 Random Vibration of each launch vehicle

2.4.2. On-orbit Acceleration(a) On-orbit Acceleration:
2.0m/sec2(b) Acceleration induced by JEMRMS Emergency-Stop: 0.69m/sec２

2.4.3. Pressure Environment(a) Maximum pressure during launch and inside the ISS is as follows. A pressure
inside JEM Airlock at depressurization and outboard is 0 [Pa].
- HTV, ATV, Cygnus : 104.8 [kPa]- SpX : 102.7 [kPa]- Inside the ISS : 104.8 [kPa](b) Depressurization Rates during launch, inside the ISS, and the JEM Airlock
are as follows.
- HTV : 0.878 [kPa/sec] (7.64 [psi/min])- ATV : 1.33 [kPa/sec] (11.6 [psi/min])- SpX : 0.891 [kPa/sec] (7.75 [psi/min])- Cygnus: TBD- Inside the ISS : 0.878 [kPa/sec] (7.64 [psi/min])- Inside the JEM Airlock： 1.0 [kPa/sec] (8.7 [psi/min])The structural analysis are needed considering differential pressure occurred
between inside and outside of a satellite by the depressurization during
launch and inside the ISS and the JEM Airlock, only if the satellite internal
volume (V [m3]) and the area of exhaust ports (A [m2]) do not meet thefollowing condition. (Refer to JSC Form 1230, section 3 c).)V/A ≦ 50.8 [m] (2000 [inch])
17

JX-ESPC-101133-B

2.4.4. Thermal Environment- HTV : +5 ~ +32 [deg C]- ATV : +16 ~ +28 [deg C]- SpX : +18.3 ~ +30 [deg C]- Cygnus: +10 ~ +46 [deg C]- Inside the ISS : +16.7 ~ +29.4 [deg C]- Outside the ISS : -15 ~+60 [deg C] (When a satellite is inside J-SSOD)

2.4.5. Humidity Environment- HTV : Dew point; -34 [deg C]
Relative Humidity; No Requirement- ATV : Dew point; No Requirement
Relative Humidity; 30 ~ 70 [%]- SpX : Dew point; No Requirement
Relative Humidity; 25 ~ 75 [%]- Cygnus : Dew point; +4.4 ~ +15.6 [deg C]
Relative Humidity; 25 ~ 75 [%]- Inside the ISS : Dew point; +4.4 ~ +15.6 [deg C]
Relative Humidity; 25 ~ 75 [%]2.5.

Out-gassing

Rating “A” materials which are identified in MSFC-HDBK-527F (JSC-0904F) or
MAPTIS1 shall be used for a satellite. When using materials other than Rating “A”,
an individual review and approval through MUA is needed.2 (As for MUA, refer tothe section 3.2.1 (3).)

Materials and Processes Technical Information System
http://maptis.nasa.gov/home.aspx
2 Satellite materials satisfy Rating “A”, if they comply with the following low out-gassing criterion
per ASTM-E595-84.
- TML (Total Mass Loss) ≦ 1.0%
- CVCM (Collected Volatile Condensable Material) ≦ 0.1%
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JX-ESPC-101133-B

3. Interface Requirements for 50cm Class Satellite
3.1. Mechanical Interfaces
3.1.1. Coordinate System
The definitions of the coordinate systems are as follows.
 J-SSOD Coordinate System:(Xs、Ys、Zs)

The origin of the J-SSOD coordinate system is the same as the one of theSatellite Body Coordinate System when the satellite is installed in the
J-SSOD.
Satellite Body Coordinate System:(X、Y、Z)

The origin of the Satellite Body coordinate system is shown in the Figure
3.1.5-1.
(1) When a satellite is installed in the Satellite Install Case of the J-SSOD, all axes forboth coordinate systems are aligned.
(2) +Z (+Zs) is towards the direction of the deployment. -Z (-Zs) towards the direction of
the installation into the case. +Y (+Ys) towards the base-point of the case.

XS
X

ZS
YS

Z
Y

Figure 3.1.1-1 Coordinate System Definition

19

JX-ESPC-101133-B

3.1.2. Dimensional Requirements(1) The type of 50cm class satellite which can be accommodated in the J-SSOD isdefined in the Table 3.1.2-1 and the dimensional requirements are defined in the
Figure 3.1.2-1.
(2) A 50cm class satellite shall be 350+/-0.5 mm wide in Y per Figure 3.1.2-1.
(3) A 50cm class satellite shall be 550+/-0.5 mm wide in X per Figure 3.1.2-1.
(4) A 50cm class satellite shall be 550+/-0.25 mm tall in Z per Figure 3.1.2-1.
Table 3.1.2-1 Satellite dimensions
50cm classsatellite

Exterior Dimensions (*1)

Rail Dimension

Reference Figure

X:550×Y:350×Z:550mm

more than 17mm
squresFigure 3.1.2-1(*1)Nominal dimension including rails

3.1.3. Rails(1) A 50cm class satellite shall have four rails on each corner along the Z axis to slide
along the rail guides in the Satellite Install Case of the J-SSOD during ejection
into orbit.
(2) The dimensional requirements are defined in the section 3.1.2 and the Figure
3.1.2-1.
(3) The rails shall have a minimum width of 17 mm.
(4) The rails shall not have a surface roughness greater than Ra1.6μm(5) The edges of the rails (+/-Z standoffs) shall be rounded to a radius of 1.5+/-0.5mm.
(As for sharp edges on surfaces of a satellite which crew may access, refer tosection 4.2.2(1).)(6) (N/A)(7) At least 75% of the rail surfaces except for +/-Z surfaces shall be in contact withthe rail guides (rail length: 550mm) of the Satellite Install Case of the J-SSOD.
25% of the rails can be recessed. This means at least 412.5 mm of rail contacts
with the rail guide.
(8) The rail surfaces which contact with the rail guides of the J-SSOD Satellite Install
Case and the rail standoffs which contact with the J-SSOD Back Plate shall be
hard anodized aluminum after machining process. The thickness of the hardanodized coating shall be more than 10μm according to MIL-A-8625, Type3.

20

JX-ESPC-101133-B

3.1.4. Envelope Requirements(1) The dynamic envelope of a satellite shall meet the Figure 3.1.4-1.
(2) All components in +/-Z shall be recessed more than 0.5mm from the edges of therails.
(3) All components in +/-X and +/-Y shall not exceed 6.5mm normal to the side surfaceof the rails.
(4) A 50cm satellite shall not contact with the inside wall of the Satellite Install Caseof the J-SSOD except the rail surface.
(5) Any deployable components shall be constrained by a satellite itself. The J-SSOD
rail guides and walls shall not be used to constrain these deployable components.

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JX-ESPC-101133-B

⊥

0.5

Z

⊥

Y

(Common tolerance zone
in 2 places）

17min(2 places)

350±0.5

0.5min(Surface of the rail)
1.6μm

0.5min+Z Plane
See Note 3)+X+Z(Deploy
Direction）

+Y

Y

0.5

H=550±0.25 （4 places）

Z

0.5
Y
(Common tolerance zone
in 2 places）
4×4 - R1.5±0.5

17min

⊥

0.5

+Y

Satellite
Structure
Z(Common tolerance zone
in 2 places）

550±0.5 (2 places)【Note】
1) Unit: mm2) All values shall be met after the surface coating
3) Main structures of a satellite in ±X, ±Y shall not
exceed the edge of the rails.
4) Bold portion( ) shall be rounded in 1.5+/-0.5

Rail

Z
⊥

0.5

Z

Y

（Common tolerancezone in 2 places）

0.5（Common tolerance zone in 4 places）

Figure 3.1.2-1 Dimensional Requirements for 50cm Class Satellite
22

JX-ESPC-101133-B

Common for four positions
6.5
17
Common for four positions
Rail
17

6.5

0.5

Satellite Structure±Z Plane+Z
Allowable
Dynamic
Envelope(See Note 3))

See Note 2)+Y【Note】
1) Unit: mm2) Any components shall be recessed from the edge of the -Z rail ends.
3) All external components shall be within the dynamic envelope.

Figure 3.1.4-1 Dimensional Requirements for 50cm Class Satellite
23

JX-ESPC-101133-B

3.1.5. Mass Properties(1) The mass of 50 cm class satellite shall be 50 kg or less.
(2) The ballistic number (BN) of a satellite in the configuration the satellite is
installed in the J-SSOD Satellite Install Case), i.e. all deployables are stowed,
shall be no greater than 100 kg/m2. BN shall be calculated by the following
formula.
BN = M/ (Cd･A) [kg/m2]
M : The mass of a satellite [kg]Cd : Coefficient of Drag (=2) [ND]
A : Average Frontal Area [m2] (Average of projected area of a satellite XY, YZ, ZX
plane)(3) The center of gravity(CG) of a satellite shall be located as defined in Figure
3.1.5-1.
3.1.6. Separation Spring
The separation springs are not required for the 50 cm class satellite.

24

JX-ESPC-101133-B

Figure 3.1.5-1 The Center of Gravity Requirements for 50cm Class Satellite
25

JX-ESPC-101133-B

3.1.7. Access Window
Access to satellite after installation into the J-SSOD Satellite Install Case can be
performed from only deployment direction surface (+Z end face) as shown in the Figure
3.1.7-1.
In addition, the deployment switch substituting for the RBF pin shall be installed tothe end of the rail in the satellite release lock door side as shown in the Figure 3.1.7-1.

Access Window（550）

Satellite Lock

(350)

Door Location

+X

(116)

+Y

Deployment Switch Position（23）

Figure 3.1.7-1 Satellite Access Window after removal of Launch Lock Cover26

JX-ESPC-101133-B

3.1.8. Structural Strength
Refer to 2.1.8.
3.1.9. Stiffness
Refer to 2.1.9.
3.1.10. Ground HandlingA satellite shall be equipped with the interfaces to attach four eyebolts in the
opposite side of satellite deployment surface as shown in the Figure 3.1.10-1. The
eyebolts shall be JIS standard. The factor of safety of 5.0 shall be applied for theultimate strength against the hoisting loads.

Eyebolts

J-SSOD Satellite Install case for50cm class satellite

Eyebolts
Alignment Guide for Satellite

InsertSatellite

Deployment
Direction
GSE PlateSatellite

GSE StandFigure 3.1.10-1 Satellite Installation into J-SSOD Satellite Install Case27

JX-ESPC-101133-B

3.2. Electrical Interfaces
3.2.1. Deployment Switch(1) A satellite shall have two deployment switches on the rail standoffs in –Z and one
deployment switch on the rail standoff in front of the lock door in order to preventthe activation of the satellite in the J-SSOD Satellite Install Case. Figure 3.2.1-1
and Figure 3.1.7-1 show the positions of the deployment switches.
(2) When one of the deployment switches remains depressed, a satellite shall not be
activated. The definition of the depressed condition is up to 1.25mm maximum
from the surface of the rail standoff as shown in the Figure 3.2.1-2.
(3) If necessary, a battery charging needs to be enabled with the deployment switches
depressed.
(4) NA(5) NA(6) An example of three deployment switches arrangement on a circuit is shown in the
Figure 3.2.1-3. A satellite shall have at least three inhibits for its activation by asolar cell or a battery, one of the inhibits shall be placed on the ground return ofthe circuit as indicated in the section 4.2.2.2 (2), (3).

-Z plane+Z plane+X+YA
Deployment Switch （Option 1）
Deployment Switch （Option 2）

Figure 3.2.1-1 Position of Deployment Switches
Depressed
1.25mm max

Deployment Switch

Rail Standoff(±Z)

Figure 3.2.1-2 Depressed Condition of Deployment Switches
28

JX-ESPC-101133-B

Deployment
SW 3
RBF pin

Deployment SW 1

Deployment SW 1

Solar Cell

Battery

Load

Deployment
SW2 2
Deployment
SW

Figure 3.2.1-3 Example of three Deployment Switches
3.2.2. RBF(Remove Before Flight) Pin
N/A
3.2.3. Bonding
A satellite shall have a bonding interface on the side of the +Z plane so that thesatellite can be accessed on ground after it is installed in the J-SSOD Satellite InstallCase.
3.2.4. RF
Refer to 2.2.4.
3.3. Operational Requirements
Refer to 2.3.
3.4. Environmental Requirements
Refer to 2.4.
3.5. Out-gassing
Refer to 2.5.

29

JX-ESPC-101133-B

4. Safety Assurance Requirements
This chapter shows the guideline of the minimum requirements for safetyassurance applied to a JAXA selected satellite excerpted from NASDA-ESPC1681A.
As for other satellites, they shall satisfy the following safety requirements.
General
Structure
Fracture Control
Safety Review Process
Crew Safety
Material & Process
Launch Site & Vehicle Safety
Deployable Satellite from ISS
Space Debris Mitigation Guidelines

4.1.

SSP 51700
SSP 52005
NASA-STD-5003
NSTS/ISS-13830C
SSP 50005
SSP 30233
ATV/HTV/KSC Form 100
SSP 57003
IADC-02-01

Generic Requirements(1) Significance of System Safety
The System Safety is to assure that appropriate measures to minimize risks aretaken by clarifying and evaluating categories for safety assessment from a design tooperation phases. Therefore, the following processes are mainly implemented for
the System Safety.
a) To conduct safety analyses and identifying hazards related to hardware,
software and their operations in all mission phase.
b) To eliminate or control identified hazards. To assure that the appropriate
design is certainly progressed, documented, and implemented.
c) To conduct integrated safety risk assessments including identifying
uneliminable hazards/risks. To inform the project manager and JAXA of residual
hazards/risks attaching to corroborative evidences and rationales. To submit
materials for JAXA deciding acceptance of the residual hazards/risk.

(2) Generic Requirements for Materials and Process
Used materials in JEM and the like shall be selected with due regard to thefollowing operational requirements, technical properties of materials and MSDS
(Material Safety Data Sheet) information. The conditions that have influences upon
the deteriorating of the materials during hardware working shall be especiallyconsidered.
30

JX-ESPC-101133-Ba) Operational Requirements-

Operational Temperature Limit
Loads
Contaminations
Lifetime Limit
Natural Environment
Induced Environment
Othersb) Technical Properties of Materials-

Mechanical Properties
Fracture Toughness
Flammable Properties
Offgassing Properties
Corrosion
Electrolytic Corrosion
Stress Corrosion
Thermal Fatigue Properties
Mechanical Fatigue Properties
Vacuum Outgassing
Fluid Compatibility
Abrasion
Seizing
Others(3) Proxy of JAXA
If JAXA employs a third party in order to implement Safety and Product
Assurance sufficiently and effectively, a satellite developer shall accept this third
party as the proxy of JAXA.
(4) Deviation and Waiver
A satellite provider shall submit Deviation or Waiver in accordance with JMR-006
to JAXA for approval, if a satellite cannot meet the requirements identified in thisdocument.

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JX-ESPC-101133-B

4.2.
Safety Assessment
4.2.1. Implementation of Safety Assessment(1) Safety Assessment
A satellite provider shall make Safety Assessment Report (SAR) based on
JSX-2010026 for on-orbit operations. It shall be reviewed and approved by JAXA.
A satellite provider shall fill in ATV/HTV/KSC Form 100 check list for launch site
and vehicle safety assessment corresponding to the planned launch vehicle. If asatellite has pressure vessels (including the case that containers can be highlypressured under environment conditions from launch site to on-orbit), pyrotechnics
or toxic materials, an additional coordination is required with JAXA.
(2) MIUL (Material Identification Usage List)
A satellite provider shall submit MIUL based on the section 3.1.4 of CR-99117 to
JAXA for approval.
Commercial products and Electrical, Electronic, and Electromechanical (EEE)
parts (an exposure surface of electric connector, an electric wire, a cable and aprinted-circuit board) shall be contained in MIUL.
In order to get a Material Code and Rating, appropriate materials shall be selected
and used among the CR-99218, MSFC-HDBK-527F (JSC-0904F) or MAPTIS. Whenusing materials other than Rating “A”, an individual review by MUA is needed. (Asfor offgassing, Rating “H” and “K” are also acceptable. As for Stress Clacking
Corrosion, Rating “N” is also acceptable.) However, if the safety of materials is
confirmed as assembly level, MIUL can be described in this assembly level.
If a satellite uses a material whose Material Code and Rating are not identified in
CR-99218, MSFC-HDBK-527F (JSC-0904F) or MAPTIS, JAXA can conduct
flammability test and offgassing test, provided that a satellite provider submits asample of the material and a JAXA-designated written request for the test to JAXA.
(3) MUA (Materials Usage Agreement)
If materials which do not meet the SSP30233 are used in a satellite, a satellite
provider shall submit MUA based on the section 3.1.2 of CR-99117 to JAXA for
approval.
(4)VUA (Volatile Organic Compound Usage Agreement)
If volatile organic compounds which do not meet the SSP30233 are used in asatellite, a satellite provider shall submit VUA based on the section 3.1.7 of
CR-99117 to JAXA for approval.

32

JX-ESPC-101133-B

4.2.2. Safety Design Guidelines
This section shows the safety design guidelines for major safety requirements
about on-orbit operations imposed on general small satellite. Since all requirements
are not mentioned in this section, JSX-2010026 are needed to be referred as fordetailed requirements.

4.2.2.1. Standard Hazards
Hazards which need to be considered for a satellite safety design regardless of asatellite design.
(1) Sharp Edges / HolesIn order to protect crewmembers from sharp edges and protrusions during all crew
operations, they need to be rounded or planed greater than 0.7mm to the utmost. If
a satellite has any potential sharp edges which cannot be rounded or planed (ex. Anedge of a solar cell), a satellite provider shall identify the sharp edge positions withan acceptance rationale for JAXA approval.
Holes (round, slotted) without covers need to be 25 mm or longer, or be 10 mm or
shorter in diameter.
(2) Shatterable Material Release
Shatterable materials such as glass need to be inspected their integrity after
vibration test. If there is a potential of shattering due to an inadvertent contact witha crew, etc., the materials need to be contained or taken any other measures so as
not to be shattered.
(3) Flammable Materials / Materials Offgassing
Refer to the section 4.2.1 (2)~(4).
(4) Battery Failure
As for a battery usage, it is necessary to comply with JSC Form 1230, 9. Battery
Failure. Also, EP Form-03 needs to be submitted for review and approval of thevalidity of their design and verification plan.
(5) Rotating Equipment
Rotating equipment such as a motor needs to meet both of the following
requirements:- Enclosure has obvious containment capabilities.
- Rotating part does not exceed 200 mm in diameter and 8000 rpm speed in allconditions.

33

JX-ESPC-101133-B

4.2.2.2. Unique Hazards
Hazards identified by depending on a satellite specific design. Examples are as
follows.
(1) Structural Failure
If a satellite is deformed or broke up while a satellite is loaded inside the J-SSOD
Satellite Install Case, there is a risk of collision to ISS after deployment because thedeploy direction can be shifted by an inadvertent contact between a satellite and the
J-SSOD Satellite Install Case. Therefore, structural design and fracture control
need to be conducted in accordance with JMX-2012694.
(2) Radio Frequency (RF) Radiation
As long as the requirement of section 2.2.4 is satisfied, RF shock by inadvertentcrew contact, and inadvertent RF radiation to crew and ISS system inside the
J-SSOD Satellite Install Case are not regarded as hazard.
If RF transmitters have two failure tolerance based on the JSX-2010026 during
the period from launch to deployment by the J-SSOD, section 2.2.4 is not applicable.
In this case the existence of the two failure tolerance must be stated clearly in
Safety Assessment Report (SAR).
(3) Deployable Structure
All deployables such as booms, antennas, etc., need to be designed considering a
hazard caused by their inadvertent deployment. Especially, the inadvertent
deployment inside the J-SSOD Satellite Install Case will cause injury of a crew orinadequate deployment of the satellite. However, as long as the requirement
defined in section 2.1.4. (6) is satisfied, inadvertent deployment is not regarded ashazard.
If deployable components have two failure tolerance based on the JSX-2010026
against unintentional deployment during the period from launch to deployment by
the J-SSOD, section 2.1.4. (6) is not applicable. In this case the existence of thetwo failure tolerance must be stated clearly in Safety Assessment Report (SAR).

34

JX-ESPC-101133-B

4.3.
Compatibility with Safety Requirements for Deployable Satellite
from ISS and Space Debris Mitigation Guidelines
Section 3.3.1 and 3.3.2 show the safety requirements for a satellite based on SSP
57003, section 3.12 and JMR-003. The necessary verification categories of eachrequirement and data submittal are defined in Appendix-C “Verification Matrix”.

4.3.1. Compatibility with Safety Requirements for Deployable Satellite
from ISSA satellite shall comply with the following requirements in order to be deployedsafely from ISS.

4.3.1.1. Deployable Satellite Design Requirements
4.3.1.1.1.
Ballistic Number
Refer to the section 2.1.5 (2).

4.3.1.1.2.

Deployment Analysis

A satellite shall comply with the following requirements.
(1) A satellite minimum cross section (any cross section which can be physically orelectromagnetically sighted) shall be no less than 100 cm2 to be trackable by theSpace Surveillance Network (SSN).3(2) A satellite’s Ballistic characteristics in combination with the method of
deployment allow for a safe deployment (i.e. A satellite is moving safely away fromISS with a minimum risk of returning).
(3) There shall be no greater than 1/10,000 chance of human injury on the ground.

4.3.1.1.3.

Propulsion Systems

If a satellite includes a propulsion system, that system shall remain inhibited
until the satellite’s orbit decays to an altitude such that the full delta-velocity (DV)capability of the satellite could not raise the satellite’s apogee to less than 5 km
delta-height (DH) relative to the ISS perigee.
If a satellite uses high pressure propellant (including the case that a propellant
can be high pressure by environment conditions in each phase) or toxic propellant,
an additional coordination is required with JAXA.

4.3.1.1.4.

Deployable Subcomponents

If a satellite includes a deployable subcomponent, the subcomponent shall only be
deployed once the following conditions are met:
Since SSN can track objects bigger than 10cm and minimum requirements for a satellite size is
10cm, 100 cm2 is set as minimum requirement..
335

JX-ESPC-101133-B(1) The satellite has achieved a downtrack range of ≥500 km.
(2) The primary satellite’s and subcomponent’s apogees are less than the ISS
perigee.

4.3.1.2. Satellite Deployer Requirements
4.3.1.2.1.
Generic Requirements(1) A satellite will be deployed in a generally retrograde direction.
(2) A satellite should be deployed from a position that is below the ISS center ofgravity in the Local Vertical - Local Horizontal (LVLH) reference frame.
(3) A satellite will exit the 200 m Keep-Out-Sphere (KOS) in one orbit or less.
(4) A satellite will maintain an opening rate relative to ISS while inside of the KOS.
An exception to this is a closing rate due to the satellite release position relative to
the ISS CG.
(5) While a satellite altitude remains less than 5 km below ISS, the satellite will
not decrease its total range to less than half the maximum range achieved on theprior orbit.

4.3.1.2.2.

J-SSOD Requirements(1) Initial clearance of all ISS and visiting vehicle structures will be accomplishedby ensuring that the planned deploy velocity vector of the deployed object is the axisof an unobstructed half-angle cone that is determined based on expected J-SSOD
accuracy plus the pointing accuracy of the JEMRMS.
(2) The minimum deploy velocity will be greater than or equal to 0.05 m/s.
(3) J-SSOD maximum velocity capability will not exceed a velocity that will ensure
maximum safe impact energy to any ISS structure.

36

JX-ESPC-101133-B

4.3.2. Compatibility with Space Debris Mitigation Guidelines
A satellite shall comply with JMR-003. Major requirements are shown below.
(1) Limit Debris Released during Normal Operations
In all operational orbit regimes, a satellite shall be designed not to release debris
during normal operations.
(2) Minimize the Potential for On-Orbit Break-ups
On-orbit break-ups caused by the following factors shall be prevented:a) The potential for break-ups during mission should be minimized.
b) All space systems should be designed and operated so as to prevent accidental
explosions and ruptures at end-of- mission.
c) Intentional destructions, which will generate long-lived orbital debris, should
not be planned or conducted.
Especially, batteries should be adequately designed and manufactured, both
structurally and electrically, to prevent break-ups. Pressure increase in battery cells
and assemblies could be prevented by mechanical measures unless these measurescause an excessive reduction of mission assurance.
(3)Post Mission Disposal
There shall be no greater than 1/10,000 chance of human injury on the ground. In
addition, a satellite will be judged to meet the requirement if a satellite does notload radioactive substances, toxic substances or any other environmental pollutants
resulting from on-board articles in order to prevent ground environmental pollution.
(4) Lifetime Limit
A satellite’s lifetime until the re-entry shall be equal to or under 25 years.

37

JX-ESPC-101133-B

5. Requirements for Control
5.1.
Quality and Reliability Control
A satellite provider needs to control satellite’s quality and reliability (including
any products prepared by the satellite provider).

5.2.

Application for Approval and Authorization
A satellite provider shall go through the following procedures:(1) Intentional Radiating and Receiving Authorization
A satellite that has intentional RF radiating and/or receiving devices shall beapproved and certified by the NASA JSC Frequency Spectrum Manager for the useof a specified frequency band. Approval/Certification can be obtained via electronic
submittal through the JSC Frequency Management Home Page.
As for a JAXA selected satellite, since JAXA will make an application to NASA
JSC Frequency Spectrum Manager, a satellite provider shall fill in JSC Frequency
Authorization Input Form identified in JMX-2012164 (Appendix-F) and submit it to
JAXA.
(2) Radio Frequency Capability and Emission/Operation Authority
A satellite with radio frequency capability shall be certified for space operation in
the desired/planned operating frequency bands prior to integration into launchvehicle. Certification is achieved by obtaining an equipment operating license fromthe National Regulatory Agency of the satellite. The license, along with the positionsof any ground station asset that will be used to communicate with the satellite, shallbe submitted to the NASA JSC Frequency Spectrum Manager for notification.
As for a JAXA selected satellite, a satellite provider shall submit a copy of theapproved license to JAXA for submittal to NASA JSC Frequency Spectrum Manager.
(3) Registration of Objects Launched into Outer Space(4) Other necessary legal procedures

5.3.

Verification

A satellite provider is responsible for development and implementation of asatellite verification based on the verification matrix of this document Appendix-C“Verification Matrix”.
Verification methods are classified into the following categories.
(1) Analysis
Method of validating and evaluating that design or a product satisfies its
requirements by means of calculation using a mathematical model (including
computer simulation) that has been guaranteed or whose reliability has been
38

JX-ESPC-101133-B

evaluated with techniques or tools such as academically widely recognized logicalrules, etc.
This method is used when verification by inspection or testing is difficult andwhen satisfaction of requirements can be proved by analysis and calculation.
(2) Inspection
Method of verifying and evaluating that the physical properties of a productcomply with the requirements without using special testing equipment, procedures,
test tools or test support.
Ordinarily, the finish of a product is visually inspected or measured withexamination equipment based on documents or drawings that specify physicalconditions or standards.
(3) Test
Method of verifying compliance with functional and environmental durability
requirements using hardware based on measurement data.
(4) Review of Design
Method of verifying compliance with the requirements based on confirming design
documents or drawings.

5.4.

Safety Review and Design Review

A satellite provider shall attend the following review panels and report on resultsof a satellite design, manufacture, test and so on.
(1) Safety Review
As for a JAXA selected satellite, JAXA is responsible for conducting safety reviews
for the satellite in primary design phase (phase 0/I), in detailed design phase (phaseII) and in acceptance test phase (phase III).
A satellite provider shall submit Safety Assessment Report (SAR) and necessary
support documents for review by JAXA.
As for other satellites, they shall meet the safety review process defined in
NSTS/ISS-13830C.
(2) Compatibility Verification Review
JAXA is responsible for conducting a review to confirm that the satellite
verification results comply with the requirements defined in this document before
the satellite delivery to JAXA.
A satellite provider shall conduct necessary verifications and submit necessary
documents such as drawings, analysis reports and test reports for review by JAXA.
39

JX-ESPC-101133-B(3) Confirmation before a Satellite Installation
JAXA is responsible for confirming that all remaining action items which are
identified in the Safety Reviews and Compatibility Verification Reviews have beenclosed before a satellite will be loaded into the J-SSOD Satellite Install Case.
A satellite provider shall close all the action items and show that the necessary
documentation processes have been completed.

5.5.

Process Control

A satellite developer shall submit a progress schedule promptly after a satellite is
selected from the public appeal. Also, a satellite provider shall appropriately
manage the progressing and report the latest situation to JAXA.

5.6.

Preparation for Delivery to JAXA

(1)A satellite developer shall be fully aware of safety, the method of transport andthe maintenance of a transport environment. Also, the easiness of work after the
shipment shall be fully considered.
(2)Each packing shall be indicated at least the following information by labels orsomething. The information shall be easy to read, be durable and not be torn easily
during unpacking or other work.
a) Satellite Nameb) Part Numberc) Serial Numberd) Satellite Developer Name
(3)Connectors shall be protected from a static electricity, if necessary. For example,
an electrical conductive or an antistatic dust cap can be installed.
(4)A user’s manual for work on the ground shall be submitted to JAXA when asatellite is delivered to JAXA.

40

JX-ESPC-101133-B

Appendix A
System Description and Operational Overview
A1. System Description
A1.1 Overview
The J-SSOD is the launcher system to deploy small satellites from the JEMRMS asshown in the Figure A1.1-1.
The J-SSOD consists of mainly three components as shown in the Figure A1.1-2, theSatellite Install Case with the spring deployer mechanism, the Separation Mechanism tomaintain satellites inside the case by holding the hinged door of the Satellite Install Caseand the Electronics Box. The J-SSOD will be installed on the Multi-purpose Experiment
Platforms for translation back and forth through the JEM AL and for the JEMRMS
handling. The JEMRMS will position the platform with the J-SSOD towards theaft-nadir direction to assure retrograde deployment. The ballistic number of a satellite
shall be less than 100kg/m2 for faster orbiting decay of the satellite than the ISS.
When the trigger commands are initiated, the separation mechanism rotates and opens
the hinged door of the Satellite Install Case. The spring deployer mechanism in the casepushes out satellites with a spring force, and satellites are finally deployed. The
Separation Mechanism and the Electronics Box are reusable on-orbit.
The Satellite Install Case has no heater but is covered by the Multi-Layer Insulation
for the passive thermal control.
An empty Satellite Install Case can be also re-used. In this case, new satellite will be
installed by crew onboard using the Satellite Handling Tool (OSE) into the Satellite
Install Case.

Figure A1.1-1 Satellite Deploy Operation

A-1

JX-ESPC-101133-B

Electrical Box
Satellite Install Case (Two)

Separation Mechanism (Motor)(One for each case)

Separation Mechanism (Motor)

Satellite Install Case (Two)

Figure A1.1-2 Major Components of Small Satellite Orbital Deployer

A-2

JX-ESPC-101133-B
A1.2 Deployer Mechanism
The Separation Mechanism is installed in the Satellite Install Case. The Satellite
Install Case consists of one compressed spring, the back plate and the hinged spring door.
When satellites are installed, the spring is compressed but the satellites are kept in thecase by the hinged spring door. Once the Separation Mechanism receives the command,the cam of the Separation rotates. The hook of the hinged spring door is out of the cam,and then the door is opened. Finally the satellites in the case are pushed out by the
spring.
The accuracy of the deployment direction is appropriately controlled by guides in theSatellite Install Case and the rail equipments equipped on releasing satellites.
(Refer to Figure A1.2-1 and A1.2-2.)

Deployer Mechanism

Rail Guides

Back Plate
SpringFigure A1.2-1 Satellite Install Case

A-3

JX-ESPC-101133-B<Initial Position>

Drive time
Turn Angle: 30 [sec](Stop by the timer): 180 [deg]<Nominal Stop Position>

Figure A1.2-2 Separation Mechanism

A-4

JX-ESPC-101133-B
A1.3. Launch Configuration
The satellites are installed in the Satellite Install Case and the case is packed in the
Common Transfer Bag (CTB) for launch.
The Launch Cover is attached at the front and the two preload bolts are engaged to fix
the back plate of the Satellite Install Case during the launch as shown in the Figure
A1.3-1.

Launch CoverPreload Bolts

Figure A1.3-1 Launch Configuration

A-5

JX-ESPC-101133-B
A1.4 Operation Scenario
Operation scenario after receiving satellite on ground is shown as below.
(1) Preparation for Launch(1-1) The satellite is installed in the Satellite Install Case and stowed inside Cargo
Transfer Bag (CTB) with soft packing material.
(1-2) The CTB is handed over to cargo integrator of Transfer Vehicle such as HTV.

(2) Launch
After launch CTB is moved into on-orbit JEM PM.
(3) Installation on the JEM Airlock table in JEM PM(3-1) Unpack the CTB.
(3-2) Open the inner hatch of Airlock and extend the Airlock slide table into JEM PM(3-3) Install the all Satellite Cases with Electric Box and Separation Mechanisms on
the Multi-Purpose Experiment Platform (MPEP) on the Airlock and thenconnect electric cables and signal cables.

(4) J-SSOD Checkout and Setup for Deployment(4-1) Connect the Checkout (C/O) cable to the MPEP.
(4-2) Drive the separation mechanism by commands from the JEMRMS console ( orthe ground) and check out the Separation Mechanism.
(4-3) Confirm the separation mechanism goes back to initial position. Disconnect
the C/O cable.
(4-4) Remove the launch cover from the Satellite Install Case.
(4-5) Remove the RBF pin from each satellite.
A-6

JX-ESPC-101133-B(4-6) Put on the access-window cover to the Satellite Install Case for each satellite.
(4-7) Retrieve the JEM Airlock table into the JEM Airlock and close the inner hatch.
(5) Deployment(5-1) Depressurize inside of Airlock.
(5-2) Open the outer hatch of Airlock and extend the slide table into outer space.
(5-3) Grapple the MPEP by the JEMRMS.
(5-4) Supply heater power to J-SSOD from the JEMRMS(5-5) Maneuver the MPEP to appropriate deployment position.
(5-6) Deploy the first set of satellites by commands from the JEMRMS console (or the
ground).
(5-7) Deploy the second set of satellites by commands from the JEMRMS console (orthe ground).

(6) Stowage after deployment(6-1) Install the MPEP onto the JEM Airlock slide table by the JEMRMS.
(6-2) Retrieve the JEM Airlock table into the JEM Airlock and close the outer hatch.
Then repressurize inside of Airlock.

A-7

JX-ESPC-101133-B
A1.5. Deployment Condition
The Table A1.5-1 shows the deployment condition. The deployment condition may varydepending on the actual ISS situation.
Table A1.5-1 Deployment Condition
Item

Specification

Deploy Orbit(1) Approx. 380～420km (Nominal altitude of ISS)(2) Inclination : 51.6°

Deploy Direction

Nadir-Aft, 45[deg] from the nadir with respect to the ISS Body
Coordinate System

Deploy Velocity

1.1 ~ 1.7 m/sec (depends on a satellite mass)* J-SSOD performance in 3U satellite deployment.

Deployment AccuracyLess than ±5 degrees

+X

+Z
45°
Deploy Direction

+Y

+X
+Z

+Z

Figure A1.5-1 Deploy Direction

JEM

+Y

+X

+Z

Figure A1.5-2 ISS Body Coordinate System
A-8

JX-ESPC-101133-B

Appendix B
Correspondence to CubeSat Design Specification Rev.12
This document section 2.1 Mechanical Interfaces and 2.2 Electrical Interface reference
CubeSat Design Specification Rev.12 issued by California Polytechnic State University on
2009/08/01. Correspondence to CubeSat Design Specification Rev.12 is shown in Table B-1.
The following correspondences are specified in this Table.
A (Applicable) : CubeSat Design Specification is applied to this document without any
modification.
A/M (Applicable with modification) : CubeSat Design Specification is applied to thisdocument with partial modification due to J-SSOD design.
E (Equivalent) : ISS/JEM unique provision is applied to this document.
NA (Not Applicable) : CubeSat Design Specification is not applied to this document
Correspondent section numbers in this document are also shown in this Table.

B-1

JX-ESPC-101133-B
Table B-1
No.

1.
1.1
1.2
1.3
1.4
2.
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.4.1
2.1.5
2.1.6
2.1.7
2.1.7.1
2.1.7.2
2.1.7.3
2.1.8
2.1.8.1
2.2

Correspondence to CubeSat Design Specification Rev.12 (1/4)
Correspo
ndenceRequirement Description

Introduction
Overview
PurposeWaiver Process
Interface
CubeSat Specification
General Requirements
CubeSats which incorporate any deviation from the CDS shall submit a DAR and adhere to
the waiver process.
All parts shall remain attached to the CubeSats during launch, ejection and operation. No
additional space debris shall be created.
Pyrotechnics shall not be permitted.
No pressure vessels over 1.2 standard atmosphere shall be permitted.
Pressure vessels shall have a factor of safety no less than 4.
Total stored chemical energy shall not exceed 100 Watt-Hours.
No hazardous materials shall be used on a CubeSat. Please contact us if you are unsure if amaterial is considered hazardous.
CubeSat materials shall satisfy the following low out-gassing criterion to prevent
contamination of other spacecraft during integration, testing and launch.
Total Mass Loss (TML) shall be less than or equal 1.0%.
Collected Volatile Condensable Material (CVCM) shall be less than or equal 0.1%.
Note: A list of NASA approved low out-gassing materials can be found at:
http://outgassing.nasa.gov.
The latest revision of the CubeSat Design Specification shall be the official version(http://cubesat.calpoly.edu/pages/documents/developers.php), which all CubeSat developers
shall adhere to.
Cal Poly shall send updates to the CubeSat mailing list upon any changes to thespecification. You can sign-up for the CubeSat mailing list here:
http://ati.calpoly.edu/mailman/listinfo/cubesat
CubeSat Mechanical Requirements

B-2

NA
NA
E
NA
E
A/M
E
E
NA
E
A/M

Note
(Correspondent section numbers
etc.)[Title]Explanation of P-POD
section 4.1 (4)Explanation of P-POD[Title][Title]section 4.1 (4)section 4.3.2 (1)section 4.2.1 (1)section 4.2.1 (1)section 4.2.2 (4)section 4.2.1 (2)~(4)section 2.5

A
NA[Information Only]

NA[Information Only]

NA[Information Only]-[Title]JX-ESPC-101133-B
Table B-1
No.

2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.5.1
2.2.6
2.2.7
2.2.8
2.2.9
2.2.102.2.112.2.122.2.132.2.13.1
2.2.13.2
2.2.142.2.152.2.162.2.172.2.182.2.192.2.19Correspondence to CubeSat Design Specification Rev.12 (2/4)
Correspo
ndenceRequirement Description

Exterior Dimensions
The CubeSat shall use the coordinate system as defined in Figure 5. The –Z face of the
CubeSat will be inserted first into the P-POD.
The CubeSat configuration and physical dimensions shall be per Figure 5.
The CubeSat shall be 100.0+/-0.1mm wide (X and Y dimensions per Figure 5)
A single CubeSat shall be 113.5+/-0.1mm tall (Z dimension per Figure 5)
A Triple CubeSat shall be 340.5+/-0.3mm tall (Z dimension per Figure 5)
All components shall not exceed 6.5 mm normal to the surface of the 100.0 mm cube (thegreen and yellow shaded sides in Figure 5)
Exterior CubeSat components shall not contact the interior surface of the P-POD other thanthe designated CubeSat rails.
Deployables shall be constrained by the CubeSat. The P-POD rails and walls shall not to be
used constrain CubeSat rails.
Rails shall have a minimum width of 8.5 mm.
The rails shall not have a surface roughness greater than 1.6 micro-m.
The edges of the rails shall be rounded to a radius of at least 1mm.
The ends of the rails on the +Z face shall have a minimum surface area of 6.5 mm x 6.5 mm
contact area for neighboring CubeSat rails. (as per Figure 5)
At least 75% of the rails shall be in contact with the P-POD rails. 25% of the rails may berecessed and no part of the rails shall exceed the specification.
For single CubeSats this means at least 85.1 mm of rail contact.
For triple CubeSats this means at least 255.4 mm of rail contact.
Mass
Each single CubeSat shall not exceed 1.33 kg mass.
Each triple CubeSat shall not exceed 4.0kg mass.
The CubeSat center of gravity shall be located within a sphere of 2 cm from its geometriccenter.
Material
Aluminum 7075 and 6061 shall be used for both the main Cube Sat structure and the rails.
If other materials are used the developer shall submit a DAR and adhere to the waiverprocess.

B-3

Note(Correspondent section numbers
etc.)

A

[Title]section 2.1.1

A/M
A
A
A

section 2.1.2 (1)section 2.1.2 (2)section 2.1.2 (3)section 2.1.2 (3)section 2.1.4 (1)

A
A
A
A
A
A
A

section 2.1.4 (2)~(4)section 2.1.4 (5)section 2.1.3 (3)section 2.1.3 (4)section 2.1.3 (5)section 2.1.3 (6)section 2.1.3 (7)

A
A/M
A
A/M
E

[Title]section 2.1.5 (1)section 2.1.5 (3)[Title]section 4.2.1 (2)section 4.2.1 (2)~(4)MIUL/MUA/VUA

JX-ESPC-101133-B
Table B-1
No.

2.2.202.2.212.2.21.1
2.2.21.2
2.2.21.3
2.3
2.3.1

2.3.2
2.3.2.1
2.3.3

2.3.3.1
2.3.3.2
2.3.4
2.3.4.1

Correspondence to CubeSat Design Specification Rev.12 (3/4)
Correspo
ndenceRequirement Description

The CubeSat rails and standoff, which contact the P-POD rails and adjacent CubeSat
standoffs, shall to hard anodized aluminum to prevent any cold welding within the P-POD.
The CubeSat shall use separation spring (Figure 4) with characteristics defined in Table 1 on
the designated rail standoff. Separation springs with characteristics can be found using
McMaster Carr P/N 84985A76. The separation springs provide relative separation between
CubeSats after deployment from the P-POD.
The compressed separation springs shall be at or below the level of the standoff.
The throw of the separation spring shall be a minimum of 0.05 inches above the standoff
surface.
Separation springs are not required for 3U CubeSats.
Electrical Requirements
No electronics shall be active during launch to prevent any electrical or RF interference withthe launch vehicle and primary payloads. CubeSats with batteries shall be fully deactivatedduring launch or launch with discharged batteries.

Note(Correspondent section numbers
etc.)

A

section 2.1.3 (8)A/M

section 2.1.6 (1)

A/M
A/M

section 2.1.6 (1)section 2.1.6 (1)A
A/M

The CubeSat shall include at least one deployment switch on the designated rail standoff(shown in Figure 5) to completely turn off satellite power once actuated. In the actuatedstate, the deployment switch shall be centered at or below the level of the standoff.
All systems shall be turned off, including real time clocks.
To allow for CubeSat diagnostics and battery charging after the CubeSats have been
integrated into the P-POD all CubeSat umbilical connectors shall be within the designatedAccess Port positions, green shaded areas shown in Figure5.

A/M

Triple CubeSats shall use the designated Access Port positions (green shaded areas) show in
Appendix C.
Note: CubeSat deployment switch shall be depressed while inside the P-POD. All diagnostics
and battery charging shall be done while the deployment switch is depressed.
The CubeSat shall include a Remove Before Flight (RBF) pin or launch with batteries fullydischarged. The RBF pin shall be removed from the CubeSat after integration into the
P-POD.
The RBF pin shall be accessible from the Access Port position, green shaded area in Figure 5.

Asection 2.1.6 (2)[Title]section 2.3 (2)(3)(5)
Activation,
checkoutormaintenance is not carried out
inboard in principle.
section 2.2.1
Two deployment switches shallbe installed.
section 2.3 (3)section 2.2.1 (3)、2.3 (2)Activation,
checkoutormaintenance is not carried out
inboard in principle.
section 2.1.7

A/M

section 2.2.1 (1)(3)、2.3 (2)A/M

section 2.2.2 (1)Asection 2.2.2 (1)

B-4

A
A/M

JX-ESPC-101133-B
Table B-1

Correspondence to CubeSat Design Specification Rev.12 (4/4)
Correspo
ndenceNo.

Requirement Description

2.3.4.1.1

Triple CubeSats shall located their RBF pin in one of the 3 designated Access Port positions(green shaded areas) show in Appendix C.
The RBF pin shall cut all power to the satellite once it is inserted into the satellite.
The RBF in shall not protrude more than 6.5 mm from the rails when it is fully inserted in
the satellite.
Operational Requirements
CubeSats with batteries shall have the capability to receive a transmitter shutdown
command, as per Federal Communications Commission (FCC) regulation.
All deployables such as booms, antennas and solar panels shall wait to deploy a minimum of
30 minutes after the CubeSat’s deployment switch(es) are activated from P-POD ejection.
RF transmitters greater than 1mW shall wait to transmit a minimum of 30 minutes after the
CubeSat’s deployment switch(es) are activated from P-POD ejection.
Operators shall obtain and provide documentations of proper licenses for use of frequencies.

2.3.4.2
2.3.4.3
2.4
2.4.1
2.4.2
2.4.3
2.4.4

2.4.4.1
2.4.5
2.4.6

3
3.1
3.2
3.3
3.4
3.5
3.6

For amateur frequency use, this requires proof of frequency coordination by the International
Amateur Radio Union (IARU). Applications can be found at www.iaru.org.
The orbital decay lifetime of the CubeSats shall be less than 25 years after end of mission
life.
Cal Poly shall conduct a minimum of one fit check in which developer hardware shall beinspected and integrated into the P-POD. A final fit check shall be conducted prior to launch.
The CubeSat Acceptance Checklist (CAC) shall be used to verify compliance of thespecification (Appendix B for single CubeSats and Appendix D for triple CubeSats.)
Testing Requirements
Random Vibration
Thermal Vacuum Bake out
Visual Inspection
Qualification
Protoflight
Acceptance

B-5

Note
(Correspondent section numbers
etc.)

A

section 2.1.7

AA

section 2.2.2 (2)section 2.2.2 (3)NA[Title]Refer to No.2.4.4.

Asection 2.3 (4)Asection 2.3 (5)A/MAsection 5.2 (1)(2)The
intentionalRFapproval/certification processin ISS and the nation of asatellite developer is applied.
section 5.2 (1)(2)A

section 4.3.1.1.2 (3), 4.3.2 (4)E

Appendix-C

E
E
E
E
E
E
E

Appendix-C
Appendix-C
Appendix-C
Appendix-C
Appendix-C
Appendix-C
Appendix-C

JX-ESPC-101133-B

Appendix C
Verification Matrix
Table C-1
SectionSectionNo.
2Interface Requirements for10cm Class Satellite
2.1
Mechanical Interfaces
2.1.1
Coordinate System
2.1.2
Dimensional Requirements(1) The type of satellite

2.1.3

Verification Matrix for the interface requirements and safety requirements (1/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

[Title]Remarks

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
○

[Title][Definition][Title]To clarify the type of satellite (1U, 2U, 3U)(2) Width ( X, Y direction)

－

－

○

－

－

○

－

－

(3)～(5) Rail Length：Z

－

－

○

－

－

○

－

－

As for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.
Same as the above.

directionRails(1) The number and position of

NA
－

NA
－

NA
－

NA
－

NA
－

NA
－

NA
－

NA
○

[Title](2) Dimension

－

－

○

－

－

○

－

－

As for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.

(3) Rails Width

－

－

－

－

－

○

－

－

(4) Rails Surface Roughness

－

－

－

－

－

○

－

－

(5) Rails Edges Rounding

－

－

○

－

－

○

－

－

(6) Rails Surface Area (+Z

－

－

－

－

－

○

－

－

－

－

－

－

○

－

－

－

－

－

－

－

－

○

－

－

the rails

Plane)(7) Rails Contact Length with
J-SSOD Rail Guides(8) Rails Finishing

C-1

JAXA will conduct Sharp Edge Touch Test as
needed.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
2.1.4
Envelope Requirements

Verification Matrix for the interface requirements and safety requirements (2/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

Remarks[Title]

－
－

－
－

○
○

－
－

－
－

○
○

－
－

－
－

Refer to the section 2.1.4(2)~(4)

－

－

○

－

－

○

－

－

Same as the above.

－

－

○

－

－

○

－

－

Same as the above.

－

－

－

－

－

－

－

○

－

－

－

－

－

○

－

－

Mass Properties

NA

NA

NA

NA

NA

NA

NA

NA

(1) Mass

－

－

－

－

－

○

－

－

(2) Ballistic Number

－

－

－

－

○

－

－

－

(3) Center of Gravity

－

－

－

－

○

－

（○）

－

Separation Spring

NA

NA

NA

NA

NA

NA

NA

NA

(1) Requirement for 1U and

－

－

－

－

－

○

－

－

NA

NA

NA

NA

NA

NA

NA

NA

(1) Dynamic Envelope(2) Dynamic Envelope (+Z
Plane)(3) Dynamic Envelope (-ZAs for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.

Plane)(4) Dynamic Envelope (±X and±Y Plane)(5) Constraints on deployable
components(6) Constraints on deployable
components in inadvertent
deployment
2.1.5

2.1.6

[Title][Title]2U(2) Requirement for 3U（○） : Conditions identified in concerned section are used in an analysis or a test.

C-2

Not applicable.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
2.1.7 Access Window

2.1.8

2.1.9

Verification Matrix for the interface requirements and safety requirements (3/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

[Title]Remarks(1) Position

NA

NA

NA

NA

NA

NA

NA

NA

[Design Information](2) Accessibility

－

－

○

－

－

○

－

－

Structural Strength

NA

NA

NA

NA

NA

NA

NA

NA

As for a JAXA selected satellite, JAXA will conduct
Accessibility Check with J-SSOD.
[Title](1) Main Structure Strength

－

－

－

－

○

－

－

－

(2) Rails Strength

－

－

－

－

○

－

－

－

Stiffness

－

－

－

－

○

－

－

－

2.2

Electrical Interface

NA

NA

NA

NA

NA

NA

NA

NA

[Title]2.2.1

Deployment Switch

NA

NA

NA

NA

NA

NA

NA

NA

[Title](1) Position

－

－

－

－

－

○

－

－

(2) Power Isolation

－

－

－

－

－

－

○

－

(3) Battery Charging

NA

NA

NA

NA

NA

NA

NA

NA

(4) Stroke

－

－

－

－

－

○

－

－

(5) Force

－

－

－

－

－

○

－

－

(6) Deployment Switch

－

－

－

－

－

－

－

○

Arrangement

C-3[Information Only]

The position of one of the inhibits.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
2.2.2
RBF(Remove Before Flight)

Verification Matrix for the interface requirements and safety requirements (4/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

Remarks[Title]Pin(1) Accessibility

－

－

○

－

－

○

－

－

(2) Power Isolation

－

－

－

－

－

－

○

－

(3) Envelope

－

－

－

－

－

○

－

－

(4) Tether

－

－

－

－

－

○

－

－

2.2.3

Bonding

－

－

○

－

－

○

－

－

2.2.4

RF

NA

NA

NA

NA

NA

NA

NA

NA

(1) Current Limit for

－

－

－

－

○

－

－

－

－

－

－

－

○

－

－

－

Operational Requirements

NA

NA

NA

NA

NA

NA

NA

NA

(1) Maximum Stowage

－

－

－

－

－

－

－

○

－

－

－

－

－

－

－

○

(3) Cold Launch Requirements

－

－

－

－

－

－

－

○

(4) Minimum Time until

－

－

－

－

－

－

○

－

－

－

－

－

－

－

○

－

－

－

－

－

－

－

－

○

As for a JAXA selected satellite, JAXA will conduct
Accessibility Check with J-SSOD.

As for a JAXA selected satellite, JAXA will conduct
Accessibility Check with J-SSOD.
[Title]Downlink Frequency(2) Allowable RF Radiation
Levels
2.3[Title]Duration(2) On-orbit Maintenance
Limitation

Mechanism Deployment(5) Minimum Time until RF
Radiation(6) Satellite Deployment
Window

If limitation of the satellite deployment window
exists, a satellite provider shall coordinate with
JAXA

C-4

JX-ESPC-101133-B
Table C-1

Verification Matrix for the interface requirements and safety requirements (5/12)

JAXA
SectionSectionNo.
Analysis Inspection
2.4
Environmental Requirements
NA
NA
2.4.1
Random Vibration andNA
NA
Acceleration(a) Quasi-static Acceleration－－(b) Random Vibration
－
－
2.4.2
NA
NA
On-orbit Acceleration

Test
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA
NA
NA
NA
NA

ROD
NA
NA

[Title][Title]

－
－
NA

－
－
NA

（○）
－
NA

－
－
NA

－
（○）
NA

○
○
NA

[Title](a) On-orbit Acceleration

－

－

－

－

（○）

－

－

○

(b) Acceleration induced by

－

－

－

－

（○）

－

－

○

NA

NA

NA

NA

NA

NA

NA

NA

(b) Depressurization Rate

－
－

－
－

－
－

－
－

－
（○）

－
－

－
－

○
○

Thermal Environment
Humidity Environment
Out-gassing

－
－
－

－
－
－

－
－
－

－
－
－

－
－
－

－
－
○

（○）
－
－

○
○
－

Remarks

JEMRMS Emergency-Stop
2.4.3

2.4.4
2.4.5
2.5

Pressure Environment(a) Pressure（○） : Conditions identified in concerned section are used in an analysis or a test.

C-5[Title]Only if V/A > 50.8m (2000inch), Stress Analysis
Report is needed.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
3Interface Requirements for
50cm Class Satellite
3.1
Mechanical Interfaces
3.1.1
Coordinate System
3.1.2
Dimensional Requirements(1) The type of satellite

3.1.3

Verification Matrix for the interface requirements and safety requirements (6/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

[Title]Remarks

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
－

NA
NA
NA
○

[Title][Definition][Title]To clarify the type of satellite (50cm Class Satellite)(2) (3)Width ( X, Y direction)

－

－

○

－

－

○

－

－

(4)Rail Length：Z direction

－

－

○

－

－

○

－

－

As for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.
Same as the above.

Rails(1) The number and position of

NA
－

NA
－

NA
－

NA
－

NA
－

NA
－

NA
－

NA
○

[Title](2) Dimension

－

－

○

－

－

○

－

－

As for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.

(3) Rails Width

－

－

－

－

－

○

－

－

(4) Rails Surface Roughness

－

－

－

－

－

○

－

－

(5) Rails Edges Rounding

－

－

○

－

－

○

－

－

(6) Rails Surface Area (+Z

－

－

－

－

－

○

－

－

－

－

－

－

○

－

－

－

－

－

－

－

－

○

－

－

the rails

Plane)(7) Rails Contact Length with
J-SSOD Rail Guides(8) Rails Finishing（○） : Conditions identified in concerned section are used in an analysis or a test.

C-6

JAXA will conduct Sharp Edge Touch Test as
needed.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
3.1.4
Envelope Requirements

Verification Matrix for the interface requirements and safety requirements (7/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

Remarks[Title]

－
－

－
－

○
○

－
－

－
－

○
○

－
－

－
－

Refer to the section 3.1.4(2)~(4)

－

－

○

－

－

○

－

－

Same as the above.

－
－

－
－

○
－

－
－

－
－

○
－

－
－

－
○

Same as the above.

Mass Properties

NA

NA

NA

NA

NA

NA

NA

NA

[Title](1) Mass

－

－

－

－

－

○

－

－

(2) Ballistic Number

－

－

－

－

○

－

－

－

(3) Center of Gravity

－

－

－

－

○

－

（○）

－

Separation Spring

NA

NA

NA

NA

NA

NA

NA

NA

(1) Dynamic Envelope(2) Dynamic Envelope (+/-Z
Plane)(3) Dynamic Envelope (±X andAs for a JAXA selected satellite, JAXA will conduct
Fit Check with J-SSOD.

±Y Plane)(4) No contact(5) Constraints on deployable
components
3.1.5

3.1.6

（○） : Conditions identified in concerned section are used in an analysis or a test.

C-7

Not applicable.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
3.1.7
Access Window

Verification Matrix for the interface requirements and safety requirements (8/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

Remarks[Title](1) Accessibility

－

－

○

－

－

○

－

－

Structural Strength

NA

NA

NA

NA

NA

NA

NA

NA

(1) Main Structure Strength

－

－

－

－

○

－

－

－

(2) Rails Strength

－

－

－

－

○

－

－

－

Stiffness

－

－

－

－

○

－

－

－

3.1.10 Ground Handling
3.2
Electrical Interface

－

－

－

－

○

－

－

－

NA

NA

NA

NA

NA

NA

NA

NA

[Title]3.2.1

Deployment Switch

NA

NA

NA

NA

NA

NA

NA

NA

[Title](1) Position

－

－

－

－

－

○

－

－

(2) Power Isolation

－

－

－

－

－

－

○

－

(3) Battery Charging

NA

NA

NA

NA

NA

NA

NA

NA

(4) Reserved

NA

NA

NA

NA

NA

NA

NA

NA

(5) Reserved

NA

NA

NA

NA

NA

NA

NA

NA

(6) Deployment Switch

－

－

－

－

－

－

－

○

3.1.8

3.1.9

Arrangement

C-8

As for a JAXA selected satellite, JAXA will conduct
Accessibility Check with J-SSOD.
[Title][Information Only]

The position of one of the inhibits.

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
3.2.2
RBF(Remove Before Flight)

Verification Matrix for the interface requirements and safety requirements (9/12)
JAXA
Analysis Inspection Test
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA

ROD
NA

Remarks
Not applicable

Pin
3.2.3

Bonding

－

－

○

－

－

○

－

－

3.2.4

RF

NA

NA

NA

NA

NA

NA

NA

NA

(1) Current Limit for

－

－

－

－

○

－

－

－

－

－

－

－

○

－

－

－

Operational Requirements

NA

NA

NA

NA

NA

NA

NA

NA

(1) Maximum Stowage

－

－

－

－

－

－

－

○

－

－

－

－

－

－

－

○

(3) Cold Launch Requirements

－

－

－

－

－

－

－

○

(4) Minimum Time until

－

－

－

－

－

－

○

－

－

－

－

－

－

－

○

－

－

－

－

－

－

－

－

○

As for a JAXA selected satellite, JAXA will conduct
Accessibility Check with J-SSOD.
[Title]Downlink Frequency(2) Allowable RF Radiation
Levels
3.3[Title]Duration(2) On-orbit Maintenance
Limitation

Mechanism Deployment(5) Minimum Time until RF
Radiation(6) Satellite Deployment
Window

If limitation of the satellite deployment window
exists, a satellite provider shall coordinate with
JAXA

C-9

JX-ESPC-101133-B
Table C-1

Verification Matrix for the interface requirements and safety requirements (10/12)

JAXA
SectionSectionNo.
Analysis Inspection
3.4
Environmental Requirements
NA
NA
3.4.1
Random Vibration andNA
NA
Acceleration(a) Quasi-static Acceleration－－(b) Random Vibration
－
－
3.4.2
NA
NA
On-orbit Acceleration

Test
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA
NA
NA
NA
NA

ROD
NA
NA

[Title][Title]

－
－
NA

－
－
NA

（○）
－
NA

－
－
NA

－
（○）
NA

○
○
NA

[Title](a) On-orbit Acceleration

－

－

－

－

（○）

－

－

○

(b) Acceleration induced by

－

－

－

－

（○）

－

－

○

NA

NA

NA

NA

NA

NA

NA

NA

(b) Depressurization Rate

－
－

－
－

－
－

－
－

－
（○）

－
－

－
－

○
○

Thermal Environment
Humidity Environment
Out-gassing

－
－
－

－
－
－

－
－
－

－
－
－

－
－
－

－
－
○

（○）
－
－

○
○
－

Remarks

JEMRMS Emergency-Stop
3.4.3

3.4.4
3.4.5
3.5

Pressure Environment(a) Pressure（○） : Conditions identified in concerned section are used in an analysis or a test.

C-10[Title]Only if V/A > 50.8m (2000inch), Stress Analysis
Report is needed.

JX-ESPC-101133-B
Table C-1

Verification Matrix for the interface requirements and safety requirements (11/12)

JAXA
SectionSectionNo.
Analysis Inspection Test
4
Safety and Product Assurance
NA
NA
NA
4.1
Generic Requirements
NA
NA
NA

Satellite Provider
ROD Analysis Inspection Test
NA
NA
NA
NA
NA
NA
NA
NA

4.2
4.2.1

NA
－

NA
－

NA
○

NA
－

NA
○

NA
（○）*

NA
（○）*

Safety Design Guidelines
Compatibility with Safety
Requirements for Deployable
Satellite from ISS and Space
Debris Mitigation Guidelines
4.3.1
Compatibility with Safety
Requirements for Deployable
Satellite from ISS
4.3.1.1
Deployable Satellite Design
Requirements
4.3.1.1.1 Ballistic Number
4.3.1.1.2 Deployment Analysis(1) Space Surveillance
Network (SSN)(2) Analysis Methods

NA
NA

NA
NA

NA
NA

NA
NA

NA
NA

NA
NA

NA
NA

Remarks
ROD
NA [Title]
NA Provision for policy and procedure for safety &product assurance.
NA [Title]* A satellite provider shall conduct safety analysis－
and submit SAR. Necessary inspections and tests
for safety assessment shall be also conducted.
A satellite provider shall submit ATV/HTV/KSC
Form 100 check list for launch site & vehicle safetyassessment.
Offgassing test will be conducted by JAXA.
NA [Guidelines]
NA [Title]

NA

NA

NA

NA

NA

NA

NA

NA

[Title]

NA

NA

NA

NA

NA

NA

NA

NA

[Title]

NA
NA
－

NA
NA
－

NA
NA
－

NA
NA
－

NA
NA
－

NA
NA
－

NA
NA
－

NA
NA
○

－

－

－

○

－

－

－

○

(3) Chance of human injury on
the ground

○

－

－

－

○

－

－

－

Refer to the section 2.1.5 (2).
[Title]This requirement is satisfied under the section
2.1.2 Dimensional Requirements.
Ballistic Number shall be provided for JAXA toconduct analysis.
Dimensions of components, materials, mass, etc
shall be provided for JAXA to conduct analysis.

Safety Assessment
Implementation of Safety
Analysis and Safety
Assessment

4.2.2
4.3

C-11

JX-ESPC-101133-B
Table C-1
SectionSectionNo.
4.3.1.1.3 Propulsion Systems

Verification Matrix for the interface requirements and safety requirements (12/12)
JAXA
Analysis Inspection Test○－－

Satellite Provider
ROD Analysis Inspection Test
○
○
－
－

ROD
－

4.3.1.1.4 Deployable Subcomponents
4.3.1.2
Satellite Deployer
Requirements
4.3.1.2.1 Generic Requirements(1)~(2) Deploy Position and
Direction(3)~(5) Orbit of a satellite

○
NA

－
NA

－
NA

－
NA

○
NA

－
NA

－
NA

－
NA

NA
○

NA
－

NA
－

NA
－

NA
NA

NA
NA

NA
NA

NA
NA

○

－

－

－

○

－

－

－

4.3.1.2.2 J-SSOD Requirements(1) Deploy Velocity Vector

NA
－

NA
－

NA
－

NA
－

NA
－

NA
○

NA
－

NA
－

(2)~(3) Deploy Velocity

○

－

－

－

－

○

－

－

Compatibility with Space
Debris Mitigation Guidelines
Application for Approval and

○

－

－

－

○

－

－

－

NA

NA

NA

NA

NA

NA

NA

NA

－

－

－

－

－

－

－

○

－

－

－

－

－

－

－

○

4.3.2
5.2

Remarks
First, a satellite provider shall conduct analysis.
After that, JAXA will conduct analysis based onrequisite data provided by a satellite provider with
the intention of double-check.
Same as the above.
[Title][Title]Not Applicable, because this requirement is
independent of a satellite design.
Ballistic Number shall be provided for JAXA toconduct analysis.
[Title]This requirement is satisfied under the section
2.1.2 Dimensional Requirements.
The mass of a satellite shall be provided for JAXA
to conduct analysis.
JAXA will conduct re-entry analysis and a satellite
orbital lifetime analysis.
[Title]Authorization(1) Intentional Radiating andReceiving Authorization(2) Radio Frequency
Capability andEmission/Operation
Authority

C-12

As for a JAXA selected satellite, JAXA will makean application for using intentional RF to JSC
Frequency Manager based on JSC Frequency
Authorization Input Form.
As for a JAXA selected satellite, JAXA will submit
a copy of approved license to NASA.

Document No. [Defined by Satellite Developer]

J-SSOD & [Satellite Name] Interface Verification Record（For 10cm-sized Small Satellite）
Satellite Developer Name
Satellite Name
P/N
S/N

;
;
;
;

[Defined by Satellite Developer][Defined by Satellite Developer][Defined by Satellite Developer][Defined by Satellite Developer]

SIGNATURES / Satellite Development, Sponsor agency

NAME

DATE

Satellite Development Team (Initiate)

NAME

DATE

Satellite Development Team (Reviewed)

NAME

DATE

Satellite Development Team (Approved)

NAME

DATE

Sponsor Agency (Approved)

D1-1

J-SSOD / Satellite Interface Verification Record (1 /11)
Document No. [Defined by Satellite Developer]
No.

Item

<< Mechanical Interface >>1.
Satellite Type
2.

3.

4.

5.

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference

1U / 2U / 3U

1U, 2U, or 3U

N/A

N/A

Pare 2.1.2(1)100.0+/-0.1mm

Measurement

Para 2.1.2(2)Figure2.1.2-1, 2a~2d100.0+/-0.1mm

Measurement

Para 2.1.2(2)Figure2.1.2-1, 3a~3d

Measurement

Para 2.1.2 (3)~(5)Para 2.1.3 (1)Figure2.1.2-1, 4a~4d

Measurement

Para 2.1.3(3)Figure2.1.2-1, 5a~5d

Width in -Z Planea.

+X Planemmb.

+Y Planemmc.

-X Planemmd.

-Y PlanemmWidth in +Z Planea.

+X Planemmb.

+Y Planemmc.

-X Planemmd.

-Y PlanemmRails Lengtha.

Rail 1b.

Rail 2c.

Rail 3d.

Rail 4mm(S/W or Spring)mm[For Deployment S/W ][For Separation Spring ](S/W or Spring)

113.5+/-0.1mm (1U)

111.5+/-0.1mm (1U)mm

227.0+/-0.1mm (2U)

225.0+/-0.1mm (2U)

(S/W or Spring)

340.5+/-0.3mm (3U)

340.5+/-0.3mm (3U)mm
(S/W or Spring)

Rails Widtha.

Rail 1xmmb.

Rail 2xmmc.

Rail 3xmm

d.

Rail 4xmm

Min 8.5 x 8.5 mm

D1-2

J-SSOD / Satellite Interface Verification Record (2 /11)
Document No. [Defined by Satellite Developer]
No.
6.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)≦ 1.6μm (Ra) (*1)

Inspection(Machine work order,
Inspection report, etc.)

Para 2.1.3(4)Figure2.1.2-1, 6a~6d

Min R1 mm

Inspection(Machine work order,
Inspection report, etc.)

Para 2.1.3(5)Figure2.1.2-1, 7a~7d

Min 6.5 x 6.5 mm

Inspection(Manufacture drawing, etc.)

Para 2.1.3(6)≧ 85.1mm (1U)
≧ 170.3mm (2U)≧ 255.4mm (3U)

Analysis(Assessment based on
Manufacture drawing, etc.
is allowed.)

Para 2.1.3(7)Reference

Rails Surface Roughnessa.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG(*1) Arithmetic average of the roughness profile.

7.

8.

9.

Rails Edges Roundinga.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Rails Surface Area(+Z Plane)a.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Rails Contact Length with
J-SSOD Rail Guidesa.

Rail 1, +X

mmb.

Rail 1, -Y

mm

c.

Rail 2, -Y

mm

d.

Rail 2, -X

mme.

Rail 3, -X

mm

f.

Rail 3, +Y

mmg.

Rail 4, +Y

mmh.

Rail 4, +X

mm

D1-3

J-SSOD / Satellite Interface Verification Record (3 /11)
Document No. [Defined by Satellite Developer]
No.
10.

11.

12.

Item

Results

Evidence
document(Document No)

Requirement

Verification
MethodAnodized per
MIL-A-8625 Type3

Inspection(Machine work order, Inspection report,
etc.)

Para 2.1.3(8)≧ 7mmInspection(Review of Manufacture drawing, etc.)

Para 2.1.3(2),2.1.4(1)(2)
Figure 2.1.2-1,
11a~11d≧ 6.5mm

Inspection(Review of Manufacture drawing, etc.)

Para 2.1.3(2),2.1.4(1)(3)Figure 2.1.2-1,
11e~11h≦ 0.2mm

Inspection(Machine work order, Inspection report,
etc.)

Para 2.1.3(2)Figure 2.1.2-1,
12a~12hReference

Rail Surface Finisha.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Clearance between Rail
Edges & Main Structure (Zdirection)a.

Rail 1, +Z

mm

b.

Rail 2, +Z

mm

c.

Rail 3, +Z

mm

d.

Rail 4, +Z

mm

e.

Rail 1, -Z

mm

f.

Rail 2, -Z

mm

g.

Rail 3, -Z

mm

h.

Rail 4, -Z

mm

Rails Perpendicularity
against +Z Planea.

Rail 1, +X

OK / NGb.

Rail 1, -Y

OK / NGc.

Rail 2, -Y

OK / NGd.

Rail 2, -X

OK / NGe.

Rail 3, -X

OK / NGf.

Rail 3, +Y

OK / NGg.

Rail 4, +Y

OK / NGh.

Rail 4, +X

OK / NG

D1-4

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Document No. [Defined by Satellite Developer]
No.

Item

13.

Rails Perpendicularity against+Y Plane14.

a.

Rail 1, +X

OK / NGb.

Rail 2, -X

OK / NGc.

Rail 3, -X

OK / NGd.

Rail 4, +X

OK / NGb.

16.

Verification
MethodEvidence document(Document No)≦ 0.2mm

Inspection(Machine work order,
Inspection report, etc.)

Para 2.1.3(2)Figure 2.1.2-1,
13a~13d≦ 0.2mm

Inspection(Machine work order,
Inspection report, etc.)

Para 2.1.3(2)Figure 2.1.2-1,
14a~14b≦ 0.2mm

Inspection(Machine work order,
Inspection report, etc.)

Para 2.1.3(2)Figure 2.1.2-1,
15a~15d≦ 6.5mm

Measurement(or Inspection)

Para 2.1.4 (1)&(4)Figure 2.1.4-1,
16a~16d≧ 0.5mm from rail surfaces (+Z).

Measurement(or Inspection)

Para 2.1.4 (1)&(2)Figure 2.1.4-1, 16eReference

Rails Parallelism to +Y Planea.

15.

Requirement

Results

Rail 1, -YRail 2, -Y

OK / NG
OK / NG

Rail Edges Flatness on +Z
Plane
a.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Envelope (*2)(*2) Dynamic deformation shall be considered.

a.

+X Planemmb.

+Y Planemmc.

-X Planemmd.

-Y Planemme.

+Z Planemmf.

-Z Plane

OK / NGNo protrusion from rail surfaces (-Z).

Inspection

Para 2.1.4 (1)&(3)Figure 2.1.4-1, 16f

g.

Constraints on
deployable
components

OK / NGAny deployable components shall be constrainedby the satellite itself. The J-SSOD rails and walls
shall not be used to constrain these deployables.

Review of Design

Para 2.1.4 (5)D1-5

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Document No. [Defined by Satellite Developer]
No.

Item

17.

Mass Properties

18.

a.

Mass

b.

Ballistic Numberc.

Center of Gravity

Verification
MethodEvidence document(Document No)

Kg

0.13～1.33kg/1U

Measurement

Para 2.1.5(1)kg/m2≦ 100 kg/m2

Analysis

Para 2.1.5(2)OK / NG

Within a sphere of 2 cm from the satellite geometric center.

Analysis(or Test)

Para 2.1.5(3)Reference

Separation Spring(1U & 2U Only)a.

Location

Option #Option 1 or Option 2

Inspection(Manufacture drawing,etc.)

Para 2.1.6(1)Figure 2.1.6-2, 18ab.

Parts Number

OK / NG

IA P/N: 251D939002-1

Inspection(Manufacture drawing,etc.)

Para 2.1.6(1)c.

Positional Tolerance≦ 0.3mm(Basis: 4.25mm from rail surfaces)

Inspection(Manufacture drawing,etc.)

Para 2.1.6(1)Figure 2.1.6-2, 18c

OK / NG

Accessible thru Access Window at either -Y or +X plane if
required after the installation into the J-SSOD Satellite
Install Case.

Inspection(Manufacture drawing,etc.), Fit Check with
J-SSOD

Para 2.1.7(2)19.

Accessibility

20.

Structural Strength21.

Requirement

Resultsmma.

Main Structure
Strength

OK / NGA satellite shall have a sufficient structural strength with anecessary safety margin through the ground operation,
testing, ground handling, and on-orbit operations.

Analysis(Stress Analysis
Report)Para 2.1.8(1)b.

Rails Strength

OK / NG

Each rail shall have a sufficient structural strength with 46.6
N of a combined load of the preload and the spring load by
the main spring.

Analysis(Stress Analysis
Report)Para 2.1.8(2)Minimum fundamental frequency ≧ 100 [Hz]Analysis(Stress Analysis
Report)Para 2.1.9

Stiffness

Hz

D1-6

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Document No. [Defined by Satellite Developer]
No.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference<< Electrical Interface >>22. Deployment Switches

23.

24.

a.

Location

Option #Option 1 or Option 2

Inspection(Drawing order, etc.)

Para 2.2.1(1)Figure 2.1.6-2, 22ab.

Function Test

OK / NG

Satellite shall not be activated when either of
two switches remains depressed, i.e. 0.75mm
max. from the rail standoff surface.

Function Test

Para 2.2.1(2)Figure 2.2.1-1, 22bc.

Strokemm≦ 2.0mm

Function Test

Para 2.2.1(4)Figure 2.2.1-1, 22c

d.

Force

N

≦ 3N

Function Test

Para 2.2.1(5)Inspection (Manufacturedrawing, etc.), Fit Check
with J-SSOD

Para 2.2.2(1)

RBF Pina.

Accessibility-Ys / +Xs

RBF pin shall be accessible thru Access
Window at either -Ys or +Xs plane if required
after the installation into the J-SSOD Satellite
Install Case.

b.

Function Test

OK / NG

RBF pin shall cut all power to the satellite once
it is inserted into the satellite.

Function Test

Para 2.2.2(2)c.

Envelope

Protrudes ≦ 6.5mm

Inspection (Manufacturedrawing, etc.), Fit Check

Para 2.2.2(3)d.

TetherOK / NG- Tether shall be attached to the RBF pin.
- A satellite shall be loaded into the J-SSOD
Satellite Install Case with the tether attached.

Inspection(Manufacture drawing,etc.)

Para 2.2.2(4)-Ys / +Xs

The bonding interface shall be accessible thru
Access Window at either -Ys or +Xs plane.

Inspection(Drawing order, etc.)

Para 2.2.3(1)Bondingmm

D1-7

J-SSOD / Satellite Interface Verification Record (7 /11)
Document No. [Defined by Satellite Developer]
No.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference<< Operational Requirements >>25.

Maximum Stowage Duration

OK / NG

Maximum stowage duration shall assume themax stowage duration may be about 1 year.

Review of Design (*3)

Para 2.3(1)26.

On-orbit Maintenance
Limitation

OK / NG

On-orbit maintenance limitation will not plan
any activation, checkout, or maintenance after
the delivery.

Review of Design (*3)

Para 2.3(2)27.

Cold Launch Requirements

OK / NGA satellite shall have a capability to survive inthe cold launch environment (i.e. w/o power).

Review of Design (*3)

Para 2.3(3)28.

Minimum Time until
Appendage Deployment & RF
Radiation(*3) It is allowed to describe a rationale in "Evidence document" instead of providing a document.

29.

a.

Timer Setting

OK / NG≧ 30 minutes

Function Test

Para 2.3(4)&(5)b.

Function Test

OK / NG

Whenever either of two deployment switches
is re-depressed, the timer shall be reset.

Function Test

Para 2.3(4)&(5)

OK / NGA satellite deployment window shall not be
restricted by a satellite design. If limitation of
the satellite deployment window exists, asatellite developer shall coordinate with JAXA.

Review of Design

Para 2.3(6)Limitation of the satellite
deployment window<< Environmental Requirements >>Random Vibration and30.
Accelerationa.

Quasi-static Acceleration

OK / NGA satellite shall assume the condition definedin the section 2.4.1(a)Analysis(Stress Analysis Report)

Para 2.4.1 (a)b.

Random Vibration

OK / NGA satellite shall assume the condition definedin the section 2.4.1(b)Test(Vibration Test Report)

Para 2.4.1 (b)D1-8

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Document No. [Defined by Satellite Developer]
No
.
31.

32.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference

On-orbit Accelerationa.

On-orbit Acceleration

OK / NGA satellite shall assume the condition defined in
the section 2.4.2(a)Analysis(Stress Analysis Report)

Para 2.4.2 (a)b.

Acceleration induced by
JEMRMS Emergency-Stop

OK / NGA satellite shall assume the condition defined in
the section 2.4.2(b)Analysis(Stress Analysis Report)

Para 2.4.2 (b)OK / NGA satellite shall assume the condition defined in
the section 2.4.3(a)Review of Design (*5)

Para 2.4.3 (a)Analysis(Stress Analysis Report,
if necessary)Para 2.4.3 (b)Pressure Environmenta.

Pressureb.

Depressurization Ratem(*4)(*4) Please fill in V/A.

If V/A ≦ 50.8m (2000inch), analysis is notneeded. If V/A > 50.8m (2000inch), Stress
Analysis Report is needed.

(*5) It is allowed to write the purport of no problem in "Evidence document" instead of providing a document.

33.

Thermal Environment

OK / NGA satellite shall assume the condition defined in
the section 2.4.4.

Test(Thermal Test Report)

Para 2.4.4

34.

Humidity Environment

OK / NGA satellite shall assume the condition defined in
the section 2.4.5.

Review of Design (*5)

Para 2.4.5

35.

Out-gassing

OK / NG

Rating “ A ” materials shall be used for asatellite.

Inspection(MIUL, MUA)

Para 2.5

OK / NGA satellite provider shall conduct safety
analysis and submit SAR. Necessary
inspections and tests for safety assessment
shall be also conducted.

Analysis, Test,
Inspection (Phase III
approved SAR)

para 3.2.1

Analysis, Test,
Inspection(ATV/HTV/KSC Form
100 check list)

para 3.2.1<< Safety Requirements >>36. Safety Assessment Analysisa.

On-orbit Safetyb.

Launch Site & Vehicle
SafetyA satellite provider shall submit ATV/HTV/KSC
OK / NG

Form 100 check list for launch site & vehicle
safety assessment.

D1-9

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Document No. [Defined by Satellite Developer]
No.
37.

38.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Inspection

Para 2.1.4 (６)Reference

Envelope

Contact surface of the
deployable components

mm

If any deployable components make contact
with the inside wall of the J-SSOD Satellite
Install Case in their unintentional deployment,
the contact surface of the deployable
components shall have more than 1mm
thickness.

(1)

Frequency and Current
Limit

mA

If downlink frequency below 110 MHz is used,maximum current in the circuits shall not
exceed 50 mA.

Test

Para 2.2.4 (1)(2)

Allowable RF Radiation
LevelsuV/mHz

RF radiation levels shall not exceed values ofTable 2.2.4-1.

Test

Para 2.2.4 (2)

RF

D1-10

J-SSOD / Satellite Interface Verification Record (9 /11)
Document No. [Defined by Satellite Developer]

D1-11

J-SSOD / Satellite Interface Verification Record (10 /11)
Document No. [Defined by Satellite Developer]

D1-12

J-SSOD / Satellite Interface Verification Record (11 /11)
Document No. [Defined by Satellite Developer]

D1-13

Document No. [Defined by Satellite Developer]

J-SSOD & [Satellite Name] Interface Verification Record（For 50cm-sized Small Satellite）
Satellite Developer Name
Satellite Name
P/N
S/N

;
;
;
;

[Defined by Satellite Developer][Defined by Satellite Developer][Defined by Satellite Developer][Defined by Satellite Developer]

SIGNATURES / Satellite Development, Sponsor agency

NAME

DATE

Satellite Development Team (Initiate)

NAME

DATE

Satellite Development Team (Reviewed)

NAME

DATE

Satellite Development Team (Approved)

NAME

DATE

Sponsor Agency (Approved)

D2-1

J-SSOD / Satellite Interface Verification Record (1 /11)
Document No. [Defined by Satellite Developer]
No.

Item

<< Mechanical Interface >>1.
Satellite Type
2.

3.

4.

5.

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference

N/A

－

－

－

Pare 3.1.2(1)Width in -Z Planea.

+X Planemmb.

-X Planemmc.

+Y Planemmd.

-Y Planemm

350.0+/-0.5mm
Measurement

Para 3.1.2(2) (3)Figure3.1.2-1, 2a~2d

Measurement

Para 3.1.2(2) (3)Figure3.1.2-1, 3a~3d

550.0+/-0.25mm

Measurement

Para 3.1.2 (1)Para 3.1.2 (4)Figure3.1.2-1, 4a~4d

Min 17 x 17 mm

Measurement

Para 3.1.3(3)Figure3.1.2-1, 5a~5d

550.0+/-0.5mm

Width in +Z Planea.

+X Planemmb.

-X Planemmc.

+Y Planemmd.

-Y Planemm

350.0+/-0.5mm
550.0+/-0.5mm

Rails Lengtha.

Rail 1mmb.

Rail 2mmc.

Rail 3mmd.

Rail 4mm

Rails Widtha.

Rail 1xmmb.

Rail 2xmmc.

Rail 3xmm

d.

Rail 4

x

mm

D2-2

J-SSOD / Satellite Interface Verification Record (2 /11)
Document No. [Defined by Satellite Developer]
No.
6.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)≦ 1.6μm (Ra) (*1)

Inspection(Machine work order,
Inspection report, etc.)

Para 3.1.3(4)Figure3.1.2-1, 6a~6d

R1.5 mm+/-0.5mm

Inspection(Machine work order,
Inspection report, etc.)

Para 3.1.3(5)Figure3.1.2-1, 7a~7d－－≧ 412.5mm

Analysis(Assessment based on
Manufacture drawing,
etc. is allowed.)

Reference

Rails Surface Roughnessa.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG(*1) Arithmetic average of the roughness profile.

7.

8.

9.

Rails Edges Roundinga.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Rails Surface Area(+Z Plane)a.

Rail 1

N/Ab.

Rail 2

N/Ac.

Rail 3N/Ad.

Rail 4

N/A－－

Rails Contact Length with
J-SSOD Rail Guidesa.

Rail 1, +X

mmb.

Rail 1, -Y

mm

c.

Rail 2, -Y

mm

d.

Rail 2, -X

mme.

Rail 3, -X

mm

f.

Rail 3, +Y

mmg.

Rail 4, +Y

mmh.

Rail 4, +X

mm

D2-3

Para 3.1.3(7)J-SSOD / Satellite Interface Verification Record (3 /11)
Document No. [Defined by Satellite Developer]
No.
10.

11.

12.

Item

Results

Evidence
document(Document No)

Requirement

Verification
MethodAnodized per
MIL-A-8625 Type3

Inspection(Machine work order, Inspection report,
etc.)

Para 3.1.3(8)≧ 0.5mm

Inspection(Review of Manufacture drawing, etc.)

Para 3.1.3(2),3.1.4(1)(2)
Figure 3.1.2-1,11a~11d≧ 0.5mm

Inspection(Review of Manufacture drawing, etc.)

Para 3.1.3(2),3.1.4(1)(3)Figure 3.1.2-1,11e~11h≦ 0.5mm

Inspection(Machine work order, Inspection report,
etc.)

Para 3.1.3(2)Figure 3.1.2-1,12a~12h

Reference

Rail Surface Finisha.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Clearance between Rail
Edges & Main Structure (Zdirection)a.

Rail 1, +Z

mm

b.

Rail 2, +Z

mm

c.

Rail 3, +Z

mm

d.

Rail 4, +Z

mm

e.

Rail 1, -Z

mm

f.

Rail 2, -Z

mm

g.

Rail 3, -Z

mm

h.

Rail 4, -Z

mm

Rails Perpendicularity
against +Z Planea.

Rail 1, +X

OK / NGb.

Rail 1, -Y

OK / NGc.

Rail 2, -Y

OK / NGd.

Rail 2, -X

OK / NGe.

Rail 3, -X

OK / NGf.

Rail 3, +Y

OK / NGg.

Rail 4, +Y

OK / NGh.

Rail 4, +X

OK / NG

D2-4

J-SSOD / Satellite Interface Verification Record (4 /11)
Document No. [Defined by Satellite Developer]
No.

Item

13.

Rails Perpendicularity against+Y Plane14.

a.

Rail 1, +X

OK / NGb.

Rail 2, -X

OK / NGc.

Rail 3, -X

OK / NGd.

Rail 4, +X

OK / NGb.

16.

Verification
MethodEvidence document(Document No)≦ 0.5mm

Inspection(Machine work order,
Inspection report, etc.)

Para 3.1.3(2)Figure 3.1.2-1,13a~13d≦ 0.5mm

Inspection(Machine work order,
Inspection report, etc.)

Para 3.1.3(2)Figure 3.1.2-1,14a~14b≦ 0.5mm

Inspection(Machine work order,
Inspection report, etc.)

Para 3.1.3(2)Figure 3.1.2-1,15a~15d≦ 6.5mm

Measurement(or Inspection)

Para 3.1.4 (1)&(4)Figure 3.1.4-1,16a~16d≧ 0.5mm from rail surfaces (+Z).

Measurement(or Inspection)

Para 3.1.4 (1) (2)Figure 3.1.4-1, 16eReference

Rails Parallelism to +Y Planea.

15.

Requirement

Results

Rail 1, -YRail 2, -Y

OK / NG
OK / NG

Rail Edges Flatness on -Z
Plane
a.

Rail 1

OK / NGb.

Rail 2

OK / NGc.

Rail 3

OK / NGd.

Rail 4

OK / NG

Envelope (*2)(*2) Dynamic deformation shall be considered.

a.

+X Planemmb.

+Y Planemmc.

-X Planemmd.

-Y Planemme.

+Z Planemmf.

-Z Plane

OK / NGNo protrusion from rail surfaces (-Z).

Inspection

Para 3.1.4 (1)Figure 3.1.4-1, 16f

g.

Constraints on
deployable
components

OK / NGAny deployable components shall be constrainedby the satellite itself. The J-SSOD rails and walls
shall not be used to constrain these deployables.

Review of Design

Para 3.1.4 (5)D2-5

J-SSOD / Satellite Interface Verification Record (5 /11)
Document No. [Defined by Satellite Developer]
No.

Item

17.

Mass Properties

18.

a.

Mass

b.

Ballistic Numberc.

Center of Gravity

Verification
MethodKg≦ 50kgMeasurement

Para 3.1.5(1)kg/m2≦ 100 kg/m2

Analysis

Para 3.1.5(2)Analysis(or Test)

Para 3.1.5(3)OK / NGCG shall be located as defined in Figure 3.1.5-1.

Evidence document(Document No)

Reference

Separation Spring(1U & 2U Only)a.

Location

N/A

-

-

-

-

b.

Parts Number

N/A

-

-

-

-

c.

Positional Tolerance

N/A

-

-

-

-

-

-

-

-

19.

Accessibility

20.

Structural Strength21.

Requirement

Results

-

-

-

-

a.

Main Structure
Strength

OK / NGA satellite shall have a sufficient structural strength with anecessary safety margin through the ground operation,
testing, ground handling, and on-orbit operations.

Analysis(Stress Analysis
Report)Para 3.1.8(1)b.

Rails Strength

OK / NG

Each rail shall have a sufficient structural strength with 46.6
N of a combined load of the preload and the spring load by
the main spring.

Analysis(Stress Analysis
Report)Para 3.1.8(2)Minimum fundamental frequency ≧ 100 [Hz]Analysis(Stress Analysis
Report)Para 3.1.9

Stiffness

Hz

D2-6

J-SSOD / Satellite Interface Verification Record (6 /11)
Document No. [Defined by Satellite Developer]
No.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference<< Electrical Interface >>22. Deployment Switches

23.

24.

a.

Location

Option #Option 1 or Option 2

Inspection(Drawing order, etc.)

Para 3.2.1(1)Figure 3.2.1-1, 22ab.

Function Test

OK / NG

Satellite shall not be activated when either of
two switches remains depressed, i.e. 1.25mm
max. from the rail standoff surface.

Function Test

Para 3.2.1(2)Figure 3.2.1-2, 22bc.

Stroke

N/A

d.

Force

N/A

RBF Pina.

Accessibility

N/A

b.

Function Test

N/A

c.

Envelope

N/Ad.

TetherN/A

Bonding

N/A

D2-7

J-SSOD / Satellite Interface Verification Record (7 /11)
Document No. [Defined by Satellite Developer]
No.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference<< Operational Requirements >>25.

Maximum Stowage Duration

OK / NG

Maximum stowage duration shall assume themax stowage duration may be about 1 year.

Review of Design (*3)

Para 3.3(1)26.

On-orbit Maintenance
Limitation

OK / NG

On-orbit maintenance limitation will not plan
any activation, checkout, or maintenance after
the delivery.

Review of Design (*3)

Para 3.3(2)27.

Cold Launch Requirements

OK / NGA satellite shall have a capability to survive inthe cold launch environment (i.e. w/o power).

Review of Design (*3)

Para 3.3(3)28.

Minimum Time until
Appendage Deployment & RF
Radiation(*3) It is allowed to describe a rationale in "Evidence document" instead of providing a document.

29.

a.

Timer Setting

OK / NG≧ 30 minutes

Function Test

Para 3.3(4)(5)b.

Function Test

OK / NG

Whenever either of two deployment switches
is re-depressed, the timer shall be reset.

Function Test

Para 3.3(4)(5)

OK / NGA satellite deployment window shall not be
restricted by a satellite design. If limitation of
the satellite deployment window exists, asatellite developer shall coordinate with JAXA.

Review of Design

Para 3.3(6)Limitation of the satellite
deployment window<< Environmental Requirements >>Random Vibration and30.
Accelerationa.

Quasi-static Acceleration

OK / NGA satellite shall assume the condition definedin the section 2.4.1(a)Analysis(Stress Analysis Report)

Para 3.4.1 (a)b.

Random Vibration

OK / NGA satellite shall assume the condition definedin the section 2.4.1(b)Test(Vibration Test Report)

Para 3.4.1 (b)D2-8

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Document No. [Defined by Satellite Developer]
No
.
31.

32.

Item

Results

Requirement

Verification
MethodEvidence document(Document No)

Reference

On-orbit Accelerationa.

On-orbit Acceleration

OK / NGA satellite shall assume the condition defined in
the section 2.4.2(a)Analysis(Stress Analysis Report)

Para 3.4.2 (a)b.

Acceleration induced by
JEMRMS Emergency-Stop

OK / NGA satellite shall assume the condition defined in
the section 2.4.2(b)Analysis(Stress Analysis Report)

Para 3.4.2 (b)OK / NGA satellite shall assume the condition defined in
the section 2.4.3(a)Review of Design (*5)

Para 3.4.3 (a)Analysis(Stress Analysis Report,
if necessary)Para 3.4.3 (b)Pressure Environmenta.

Pressureb.

Depressurization Ratem(*4)(*4) Please fill in V/A.

If V/A ≦ 50.8m (2000inch), analysis is notneeded. If V/A > 50.8m (2000inch), Stress
Analysis Report is needed.

(*5) It is allowed to write the purport of no problem in "Evidence document" instead of providing a document.

33.

Thermal Environment

OK / NGA satellite shall assume the condition defined in
the section 2.4.4.

Test(Thermal Test Report)

Para 3.4.4

34.

Humidity Environment

OK / NGA satellite shall assume the condition defined in
the section 2.4.5.

Review of Design (*5)

Para 3.4.5

35.

Out-gassing

OK / NG

Rating “ A ” materials shall be used for asatellite.

Inspection(MIUL, MUA)

Para 3.5

OK / NGA satellite provider shall conduct safety
analysis and submit SAR. Necessary
inspections and tests for safety assessment
shall be also conducted.

Analysis, Test,
Inspection (Phase III
approved SAR)

para 3.2.1

Analysis, Test,
Inspection(ATV/HTV/KSC Form
100 check list)

para 3.2.1<< Safety Requirements >>36. Safety Assessment Analysisa.

On-orbit Safetyb.

Launch Site & Vehicle
SafetyA satellite provider shall submit ATV/HTV/KSC
OK / NG

Form 100 check list for launch site & vehicle
safety assessment.

D2-9

J-SSOD / Satellite Interface Verification Record (8 /11)
Document No. [Defined by Satellite Developer]
No.
37.

Item

Requirement

Verification
MethodEvidence document(Document No)

Reference

Envelope
Contact surface of the
deployable components

38.

Results

N/A

RF
(1)

Frequency and Current
Limit

mA

If downlink frequency below 110 MHz is used,maximum current in the circuits shall not
exceed 50 mA.

Test

Para 3.2.4 (1)(2)

Allowable RF Radiation
LevelsuV/mHz

RF radiation levels shall not exceed values ofTable 2.2.4-1.

Test

Para 3.2.4 (2)D2-10

J-SSOD / Satellite Interface Verification Record (9 /11)
Document No. [Defined by Satellite Developer]
12b 12c

H=550±0.5

12a 12h 13a 13d

0.5

⊥

Z

2d

3d

Y

0.5

⊥

(Common tolerance zone
in 2 places）

17min

5a

4a

14a 14b

H=550±0.25 （4 places）

Z

0.5
Y
(Common tolerance zoneYin 2 places）～ 5d

4×4 - R1.5±0.5

17min

places)(2350±0.5

3a+Z Plane+X

5d(Surface of the rail)
1.6μm 6a ～ 6d

0.5min0.5min11a 11b

11e

11f

2c
3c

See Note 3)+Z(Deploy5a～Y

350±0.52a4bDirection）+Y+Y

Satellite
12f

⊥

0.5

12g

Structure

Z(Common tolerance zone
in 2 places）

550±0.5 (2 places)

2d

0.5minRail

11d

11g 11h

H=550±0.25【Note】
1) Unit: mm2) All values shall be met after the surface coating
3) Main structures of a satellite in ±X, ±Y shall not exceed
4)

0.5min 11c

3d

4c

Z

⊥

0.5

Z

Y

（Common tolerance zone in 2 places）

the edge of the rails.
Bold portion() shall be rounded in 1.5+/-0.57a4d12d 12e 13b 13c

0.5
15a

～ 7d

～ 15d

（Common tolerance zone in 4 places）

Figure 3.1.2-1 Dimensional Requirements for 50cm Class Satellite
D2-11

J-SSOD / Satellite Interface Verification Record (10 /11)
Document No. [Defined by Satellite Developer]

16e

16d

16c
16a

16b

Figure 3.1.4—1 Dimensional Requirements for 50 cm Class Satellite

D2-12

J-SSOD / Satellite Interface Verification Record (11 /11)
Document No. [Defined by Satellite Developer]

22b

22a

22a

D2-13

JX-ESPC-101133-B

Appendix E
Abbreviation and Acronyms
AL
ATV
BN
Cd
CIL
C/O
CTB
EMC
EMGF
HTV
IP
ISS
IVA
JEM
JEMRMS
J-SSOD:
MS
MSDS
RBF
RF
SAR
SSN
SpX:
TBD
TML
VCM
VV

Airlock
Automated Transfer Vehicle
Ballistic Number
Coefficient of Drag
Critical Item List
Check-Out
Common Transfer Bag
Electromagnetic Compatibility
Electrical and Mechanical Grapple Fixture
H-II B Transfer Vehicle
International Partner
Internatioanl Space Station
Intra-Vehicular Activity
Japanese Experiment Module
JEM Remote Manipulator System
JEM Small Satellite Orbital Deployer
Margin of Safety
Material Safety Data Sheet
Remove Before Flight
Radio Frequency
Safety Analysis Report
Space Surveillance Network
Space-X Dragon
To Be Determined
Total Mass Loss
Volatile Condensable Material
Velocity Vector

E-1

１．Purpose of this Input sheet
Frequencies of Transmitters(Tx) and Receivers(Rx) used at ISS are controlled by NASA/JSC
Frequency manager.
Therefore, small satellite developer is required to have an approval from JSC Frequency
manager to use their Tx/Rx mounted in their satellite.
JAXA is responsible to submit the JSC frequency authorization input form to have an approval
for small satellte deployed from J-SSOD.
And the information for the JSC frequency authorization input form is required to all small
satellite developer.
２．Input Rules
JSC frequency authorization input form is consist of three sheets.
(1) GENERAL SYSTEM INFORMATION(2) TRANSMITTER（TX）INFORMATION(3) RECEIVER (RX) INFORMATION
When small satellite has more than one Tx/Rx,
payload developer need to copy (2)/(3) sheet for additional Tx/Rx in the same excel file.
(One sheet is required for one Tx/Rx as follows in the same excel file)[Example]
Transmitter Info(1),Transmitter Info(2),...
Receiver Info(1), Receiver Info(2),...

F-1

JSC Frequency Authorization Input Form
GENERAL SYSTEM INFORMATION
1
2
3
4

System Name:
System Description:
System Intended Use:
Activation Date (mm/dd/yyyy):

F-2

JSC Frequency Authorization Input Form
TRANSMITTER INFORMATION
5
6
7
8
9

Frequency (Upper):Frequency (Lower):
Transmit PowerTX Manufacturer/Model No
TX Antenna Manufacturer

[MHz]
[MHz]
[W]

10 Circuit Loss[dB]
Select Antenna type from followings:

11 Antenna Type・Dipole ・Helix ・Horn ・Loop ・Monopole・Patch ・Phased_Array ・Reflector ・Slot ・Spiral・Other

12 Antenna Gain

[dBi]
Select Polarization type from followings:

13 Antenna Polarization

・Horizontal ・Left_Handed_Elliptical ・Right_Handed_Elliptical ・Vertical・Other

14 Antenna Axial Ratio:[dB]

15 Antenna Location[If antenna is attached to the satellite structure, please fill the satellite name][Mbps for Digital] or[MHz for Analog]

16 Data Rate (Digital) or Bandwidth (Analog):

For Spread Spectrum System, enter the data rate in Mcps:[Mcps]
Select Modulation Scheme from followings:

17 Modulation Scheme:

18 Emission Bandwidth:

19 Transmission Bandwidth:

・AM ・ASK ・BPSK ・FM ・FSK ・GMSK・MSK ・QAM ・QPSK
・OtherFor Analog FM
Modulation Index:
Deviation:
Max.Mod.Freq-3dB:-20dB:-40dB:-60dB:-3dB:-20dB:-40dB:-60dB:

[MHz]
[MHz]
[MHz]
[MHz]
[MHz]
[MHz]

[MHz]
[MHz]
[MHz]
[MHz]

F-3

JSC Frequency Authorization Input Form
RECEIVER (RX) INFORMATION
20 Frequency (Upper):
21 Frequency (Lower):
22 RX Manufacturer/Model No
23 RX Antenna Manufacturer

[MHz]
[MHz]

24 Circuit Loss:[dB]

Remarks
Receiver frequency (upper limit)
Receiver frequency (lower limit)
Product maker (model No)
Product maker[= Feedr Loss]
Power loss due to the transmission line from
output port of Tx to the feed point of theantenna.

Select Antenna type from followings:
25 Antenna Type:

26 Antenna Gain:
27 Antenna Polarization:

Select from options.
If there is nothing to fit, please select "Other".

・Dipole ・Helix ・Horn ・Loop ・Monopole・Patch ・Phased_Array ・Reflector ・Slot ・Spiral・Other[dBi]
Select Polarization type from followings:[dBi] = (P isotolopic / P small satellite antenna)・Horizontal ・Left_Handed_Elliptical ・Right_Handed_Elliptical ・Vertical・Other

Select from options.
If there is nothing to fit, please select "Other".
Only apply to circularly polarized antenna.
If small satellite does not have circularly
polarized antenna, this item is N/A.

28 Antenna Axial Ratio:

AR = (|EL|+|ER|) / (|EL|-|ER|)--> 20log10|AR| (dB)

[dB]

Here,
|EL| : Electrical field density of Left-handed
circularly polarized wave
|ER| : Electrical field density of Right-handed
circularly polarized wave

Please show the NF (Noise figure) of receiver
itself.

29 Receiver Noise Figure:

30 Receiver Noise Temperature
31 Antenna Location
32 RF Selectivity:[Reference]
Noise figure is defined as follow:
the ratio of the signal-to-noise power ratio at
the input to the signal-to-noise power ratio at
the output.

[dB]

F = (Si/Ni)/(So/No) (1)
NF= 10logF = 10log (Si/Ni) - 10log (So/No) (2)Te (Noise Temperature) = To(F-1), where To is
290K (reference/room temperature)[dBK][If antenna is attached to the satellite structure, please fill the satellite name]
-3dB:
[MHz]
-20dB:[MHz]-40dB:[MHz]-60dB:[MHz]

F-4

RF selctivity is derived as frequency bandwidth
according to the power degrdations (-3dB, 20dB, -40dB, -60dB) from the reference level(Average attenuated level of the received bandi )