JuanCastillo29/space-mission-intelligence-data huggingface dataset:
The electronic version is the official approved document.

[Figure: Figure 6-19. Secondary Payload (SPL) Envelope Dimensional Depiction]

[Table: Table 6-1. Secondary Payload (SPL) Maximum Dimensions]

| Dispenser |  | A |  |  |  |  |  | B |  |  |  |  |  | C |  |  |  |  |  | Volume |  |  |  |  |  | Mass |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |  | in |  |  | mm |  |  | in |  |  | mm |  |  | in |  |  | mm |  |  | in3 |  |  | mm3 |  |  | lbm |  |  | kg |  |
| 6U | 9.41 |  |  | 239.00 |  |  | 14.41 |  |  | 366.00 |  |  | 4.45 |  |  | 113.00 |  |  | 603.41 |  |  | 9,884,562 |  |  | 30.86 |  |  | 14.00 |  |  |
| 12U | 9.41 |  |  | 239.00 |  |  | 14.41 |  |  | 366.00 |  |  | 8.90 |  |  | 226.00 |  |  | 1206.82 |  |  | 19,769,124 |  |  | 44.73 |  |  | 20.29 |  |  |

[Figure: Figure 6-20. SPL Center of Gravity (CG) Envelope within Dispenser]
The electronic version is the official approved document.

[Table: Table 6-2. SPL Center of Gravity (CG) Envelope]

| Parameters | Units |  | 6U |  |  |  |  |  | 12U |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |  |  | Min. |  |  | Max. |  |  | Min. |  |  | Max. |  |
| Center of Mass, X | in (mm) | -1.57 (-40) |  |  | +1.57 (+40) |  |  | -1.57 (-40) |  |  | +1.57 (+40) |  |  |
| Center of Mass, Y | in (mm) | +0.39 (+10) |  |  | +2.76 (+70) |  |  | +2.17 (+55) |  |  | +4.92 (+125) |  |  |
| Center of Mass, Z | in (mm) | +5.24 (+133) |  |  | +9.17 (+233) |  |  | +5.24 (+133) |  |  | +9.17 (+233) |  |  |

An option exists to fly multiple, larger than 27U SPLs mounted in a manner similar to the Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) mounted on or above the SLS PLA. This approach can provide additional deployment flexibility and efficiency for larger SPLs as well as accommodate an entire payload ring or even stacked rings. This accommodation could be flown in tandem with a larger CPLs depending on mission performance and USA/PLF volume height available. The potential for this type of accommodation on SLS is currently being evaluated.
SPL Electrical Interfaces

In general, there is no capability for battery charging to SPLs during SPL encapsulation, during VAB operations, or at the pad. However, the SPDS itself receives battery charging capability via a drag-on cable connector prior to rollout to the launch pad. Generally, the last opportunity for users to charge SPL batteries will be in standalone KSC facilities prior to vehicle stacking. SPL battery charging in the VAB via a drag on cable may be possible on a case-by-case basis as requested by the user. SPLs must remain powered off from handover to EGS at KSC until post-deployment from the SLS upper stage. The SPDS Avionics Unit (AU) is programmed prior to flight with the predetermined sequence and timing for each SPL deployment. When the SPDS avionics unit receives the signal from the upper stage (post-disposal initiation), two identical independent power circuits are closed, initiating the SPL deployment sequence. The SPL may then be powered up after it is deployed.
The integrated SPL/dispenser-to-AU interface is an electrical interface that initiates the deployment sequence via a discrete signal between the AU sequencer and each SPL dispenser by means of two
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pigtail cables, in order to receive an activation signal from the dispenser and for ground charging of the SPL batteries. GSE connections are depicted in Figure 6-21. Only SPL systems using Lithium-ion 18650 rechargeable batteries can be charged at KSC prior to launch. SPLs will be delivered to KSC and inhibited from performing any functions until 15 seconds after deployment to minimize risk of hazardous operations during integration, launch and post-deployment.
OSA

[Figure: Figure 6-21. Representative SPDS Avionics Unit SPL Interface (Block 1/EM-1)]

The AU has a battery life of up to 10 days after activation of the sequencer on-orbit. The sequencer activation is delayed until post-TLI and near completion of the upper stage disposal maneuver. SPLs using rechargeable batteries should be designed to support a launch no less than 180 days (nominal) after the last recharge. Approximately five minutes after the upper stage end-of-mission is complete (within eight hours from launch), the SPLs commence launching from OSA or PLA mounted dispensers.
All SLS blocks will launch from KSC in Florida. The EGS Program is responsible for coordination with all programs and projects for maintenance and operation of all vehicles and spacecraft/payload processing, integration and launch facilities that the SLS Program utilizes. KSC facilities include payload processing facilities available to commercial and U.S. government users. This section outlines the processing, integration and launch facility capabilities available to SLS users, as shown in Figure 7-1. Payload processing and launch facilities include: the Space Station Processing Facility (SSPF), Multi Payload Processing Facility (MPPF), Payload Hazardous Servicing Facility (PHSF) and Launch Complex 39, which includes the VAB, Launch Pad B and the Launch Control Center.
The SSPF, shown in Figure 7-2, is available for SLS spacecraft/payload processing prior to encapsulation as an optional service (negotiated separately with EGS). In the past, it was used for processing International Space Station (ISS) and other space shuttle payloads.

[Figure: Figure 7-2. Space Station Processing Facility (SSPF)]

The SSPF consists of an administrative area, intermediate high bay (I-bay) area and high bay (HB) area with an adjoining air lock. The three-story structure is 457,000 ft3 (42,457 m3) and is used to support pre-launch activities, such as receiving, handling and assembly of spacecraft hardware. In addition, the SSPF can be utilized to conduct testing for proper configuration and verifying critical systems and system interfaces. The HB area is used as the main processing area for horizontally processed payload and flight elements. The eight footprints in the HB are designated payload processing areas. Facility services in the HB are provided at each footprint through stub-ups recessed in the floor for interconnection to payload GSE that will be used for testing or processing of payloads. Support equipment elements in the HB are: launch package integration stands, airbearing equipment, cargo element work stands, and portable servicers. All stands are designed to be movable, therefore the HB system configuration may vary with each mission. The I-bay will be the main area for experiment and rack processing. Experiments will be brought into the I-bay and processed for integration into racks that will be integrated with flight elements. Flight elements enter the HB through an airlock located at the west end of the SSPF. The airlock prevents contamination of the HB CWA when moving payload elements or payloads in and out of the HB. The airlock is able to accommodate the payload canister, in the horizontal position, on the transporter. All vehicles and equipment must be visibly clean prior to entry into the air lock.
This facility is suitable for nonhazardous processing, with the exception of anhydrous ammonia (NH3) and assembly of payloads and spacecraft. Without a waiver and additional controls, the facility is not suitable for hazardous payload processing due to its proximity to inhabited buildings
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and the explosive and safety quantity distance requirements. Figure 7-3 depicts the floor plan of the SSPF. Tables 7-1 and 7-2 detail specific resources available.

[Figure: Figure 7-3. Space Station Processing Facility (SSPF) Floor Plan]

The online processing areas are located in the I-bay and HB of the SSPF. The HB is rated as a Class 1, Division 2, Groups C and D area, with a motorized steel vertical door 49.5 ft (15.1 m) high and 42 ft (12.8 m) wide. The HB floor is capable of supporting very heavy loads. It also has seismically isolated sections, making it suitable for extremely precise measurements. The floor is very smooth to facilitate the use of air-bearing pallets, which can enable effortless movement of large flight elements and stands. The floor is conductive, which helps to reduce the risk of inadvertent electrostatic discharge.
The SSPF provides access platforms on each work stand parallel to the ground. These fixed personnel platforms are on each side of the stand. In addition, mobile stairs are attached to these stands to allow for ease of personnel and equipment transfer to the work stand. There is also the option to erect scaffolding at the end of each work stand to allow continuous access around the flight element. There is also a Removable Overhead Access Platform (ROAP), which provides 180° access to payloads above the payload fittings.
A test conductor console is provided in the SSPF. This console provides operational intercommunications among facilities and video control and monitoring. There are multi-system racks located in each control/user room, allowing an interface between users in bay areas and specific off-line processing areas. Also, there is a Test, Control and Monitoring System (TCMS) provided in those control rooms, which support utilization and re-supply. Lastly, the Command and Data Handling System (C&DHS) verifies the functional interface compatibility of experiments and racks. Through a set of program test sets and processors, this provides an integrated simulation of the flight along with command, data and timing requirements.
Description

 Four 60 Hz power floor clusters per HB footprint
Power
 HB power can be provided in a 208Y/120 V 3-phase configuration with 60 or 100 A, also 480 V, 100 A 3-phase power can be supplied  Eight 60 Hz power floor clusters located in the IB with 208/120 V, 100 A 3-phase configuration  60 Hz power interface is usually supplied through alternating current (AC) electrical power carts. For planning purposes, use of these power carts by the customer should be requested through the Launch Site Support and Requirements Document (LSSRD) and coordinated with the manager of the facility  400 kVA Uninterruptible Power Supply (UPS) provides 480 V at 60 Hz power, which can be used at five 100 A receptacles in HB and at one 100 A receptacle in I-bay  Portable UPS are also available upon request and can provide 18 and 65 kVA 208 V at 60 Hz and 10 kVA 480 V at 50 Hz  In control rooms, single-phase 120 VAC at 60 Hz is distributed  120/208 VAC, 30 A three-phase power is supplied by under-floor receptacles  Each offline processing area contains single phase, 60 Hz, 120 V power receptacles  GHe and GN2 are provided to footprint mechanical panels in HB, I-bay and GSE fluid areas, where pressures
Gases

can be controlled through separate valves for 50, 750, 3,000 and 6,000 psi  Compressed air provided at 125 psi (Level 4 CWA compliant) and is available in each HB footprint  Air-handling system in online processing areas can complete four air changes in the HB per hour (non-laminar)  GO2 and purge system, which provides service capability at HB footprints 3 and 5, with a pressure of 2,400 psi (max of 6,000 psi)  LN2 used for low-temperature cooling is supplied from a port located at the east wall of the I-bay. It is provided at 80 psi at a temperature of -345° F at a flow rate of 500 gallons per minute  Chilled water for transporting waste thermal energy away from payload elements and experiments is provided at 43° F at 55 psi with a flow rate of 10 gallons per minute for panels in the I-bay and 60 gallons per minute for stubs in the HB  Vapor Containment Facility (ammonia plant) can handle 1,200 lbm flowing, with 6,000 lbm in storage
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Environmental counters are located in each footprint in the HB and I-bay to monitor and track particle counts and relative humidity.
The HB has two 30-ton (27.2 t) cab-operated electrical bridge cranes with a 50 ft (15.24 m) hook height. The I-bay has two pendant-operated 5-ton (4.5 t) electrical bridge cranes with a 25 ft (7.62 m) hook height. The airlock has one pendant-operated 15 ton (13.6 t) electrical bridge crane with a 50 ft (15.24 m) hook height. The hardware inspection area has one pendant-operated 5 ton (4.5 t) electrical bridge crane with a 25 ft (7.62 m) hook height.
This facility contains approximately 140,000 ft2 (13,006.4 m2) for nearly 1,000 employees, 25 conference areas, 16 offline processing rooms, two chemical labs, two dark rooms, and nine control rooms, located on raised floor areas. Also included are a Multi-Layer Insulation (MLI) sewing room, Vapor Containment Facility (VCF) to house NH3, flight crew room (final checkpoint for all flight crew equipment), foam cutting room (custom-cut foam for hardware elements), food processing room (for storing and processing crew food packages), and a waste processing room (for processing of post-flight waste containers).
The Closed Circuit Television (CCTV) system provides color, closed-circuit video surveillance and recording of payload processing activities from operational areas. Portable cameras are available for floor-level monitoring. The cameras can be remotely controlled from the control and user rooms. Interfaces are available at each HB footprint for customer-provided cameras. Monitors are located in the user and control rooms and various other locations. The SSPF also has about 20 offline laboratories. A typical offline lab will provide the same capabilities as the online areas. Biology labs provide deep freezers, fume hoods and other laboratory equipment and support services.
The MPPF, shown in Figure 7-4, is available for SLS spacecraft/payload processing as an optional service (negotiated separately with EGS). This facility has been used for processing space shuttle and Launch Services Program (LSP) payloads. The MPPF is a steel frame building covered with insulated metal siding and contains a high bay, low bay and equipment airlock. The high bay and low bay meet requirements of Level IV class 100,000 CWA and the equipment airlock meets a Level V class 300,000 CWA. The high bay is the main processing area and contains three areas that can be used as workstations. The low bay will be used for processing smaller payloads; the equipment airlock will be used for equipment staging and preparation for entry into the high bay. Connected to the north wall of the MPPF is a two-story metal structure. The first floor contains the electrical/mechanical room, the Test and Assembly Inspection Record (TAIR) station, an air shower and additional support rooms. The second floor consists of the UPS and heating, ventilation and air conditioning (HVAC). Connected to the south wall of the MPPF is the Annex, which holds administrative offices and two Payload Operation Control Centers (POCCs). Currently, the MPPF serves as the pre-flight and post-flight processing location for the Orion spacecraft.

[Figure: Figure 7-4. Multi Payload Processing Facility (MPPF)]

The MPPF consists of an administrative area, high bay processing area with adjoining airlock, and shop area. The airlock and three high bay servicing areas share a common transport aisle. A Level 4, Class 100,000 CWA, the facility serves as a Payload Processing Facility (PPF) and/or a Hazardous Processing Facility (HPF), depending on customer requirements. Figure 7-5 depicts the floor plan of the MPPF.
The electronic version is the official approved document.

[Figure: Figure 7-5. MPPF Floor Plan]

The high bay is rated as a Class 1, Division 2, Group C area, capable of processing hazardous commodities including high-pressure gas, hypergolic materials, ammonia, oxygen and fluorocarbon coolant. The associated facility infrastructure includes a motorized 46 ft high x 30 ft wide (14.0 m x 9.1 m) segmented vertical door, air-bearing compatible high bay floor and an electrostatic discharge mitigation system.
Each of the three footprints in the MPPF high bay provides up to 480V/100A facility power, ground, HVAC, GN2, gaseous helium (GHe), compressed air and high/low pressure manifold venting. Hypergolic and ammonia-contaminated gasses may be vented into a facility scrubber. Operational Intercommunication Systems-Digital (OISD) communications, UPS, fire detection, CCTV and WiFi are also available.
Detailed facility information is outlined in Tables 7-3 and 7-4.
The electronic version is the official approved document.

[Table: Table 7-3. MPPF Capability Overview]

|  | Resource |  |  | High Bay |  |  | Air Lock |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Clean Work Area |  |  | Level 4, Class 100,000 |  |  | Level 5, Class 300,000 |  |  |
| Temperature |  |  | 71 (+/-6) °F [21.7 (+/- 3.3) °C] |  |  | 71 (+/-6) °F [21.7 (+/- 3.3) °C] |  |  |
| Relative Humidity |  |  | 55% max. continuous |  |  | 55% max. continuous |  |  |
| Usable Floor Space |  |  | 132 ft x 60 ft (40.2 m x 18.9 m) |  |  | 39 ft x 28 ft (11.9 m x 8.5 m) |  |  |
| Ceiling Height |  |  | 62 ft (18.9 m) |  |  | 20 ft (6.1 m) |  |  |
| Door Dimensions (H x W) |  |  | 46 ft x 30 ft (14.0 m x 9.1 m) |  |  | 15 ft x 20 ft (4.6 m x 6.1 m) |  |  |
| Crane Type |  |  | Bridge |  |  | N/A |  |  |
| Crane Capacity |  |  | 20 ton (18.1 t) |  |  | N/A |  |  |
| Crane Hook Height |  |  | 49 ft (14.9 m) |  |  | N/A |  |  |
Description

Description  In high bay, 120V, 30 A single-phase power provided at 60 Hz, 120/208 V,
Power
30 A three-phase power at 60 Hz, and 480V, 100 A three phase power at 60 Hz  In low bay, 120/208V, 30 or 100 A three-phase power at 60 Hz can be supplied  Airlock can provide identical power capabilities to the low bay  South end of high bay contains several 120/208 V, 100 A receptacles that automatically switch over to UPS units during air conditioning failure
 Air enters the MPPF through HEPA filters mounted in the ceilings of the high
Gases

bay, low bay, equipment airlock and TAIR station, and is guaranteed class 5,000 air at the filter discharge for the air conditioning and reheat systems  Conditioned air handling system in online processing areas is capable of at least eight complete air changes in the high bay per hour (non-laminar flow)  Two air compressors supply regulated compressed air to both high bay and airlock, through 5 micron filters; compressed air can be provided at 90 or 125 psi  GHe is supplied through a regulating panel located on the south side of the building. The gas is available through outlets in both the high bay and equipment airlock at 750 psi and 3000 psi  GN2 is supplied from the industrial area (6,000 psi) system. The connection to this system is located on the south side of the building. A GN2 regulating panel filters the GN2 to 10 microns and regulates the GN2 down to 750 psi and 3,000 psi to outlets available in the high bay and airlock
 Breathing air (Self Contained Atmospheric Protective Ensemble and Supplied
&
Gas
Sampling
Services

Air Respirators) connections are available in each of the high bay servicing areas  Hypergolic vents are located on the south wall of the high bay
The high bay has one 20-ton (18.1 t), cab-operated, electrical bridge crane with a 49 ft (14.9 m) hook height. The MPPF is a work area. There is no planned office space at this location due to planned hazardous operations. Office space, if desired, must be arranged at other locations. The administrative area provides space for the facility Access Control Monitor (ACM) as well a changeout room with access to the high bay for related work.
The Payload Hazardous Servicing Facility (PHSF), shown in Figure 7-6, is expected to be used as a standard service to encapsulate spacecraft/payloads within the USA or PLF. The facility is an 18,813 ft2 (1,747.8 m2) steel frame building covered with insulated metal siding. It contains a hazardous operations service bay and airlock. This service bay also meets the requirements of a Level 4, class 100,000 clean room, and can be used as a PPF and/or an HPF. A one-story, concrete block structure is connected to the southwest wall of the PHSF and contains an equipment airlock, an air shower, a utilities and operations control room, an electrical/mechanical room and several support rooms. Another one-story, concrete block structure is connected to the north wall of the PHSF service bay and contains the communication room. When used as a PPF, the processing flow may include installation of solar panels, antennas and other items by the spacecraft/payload builder. When used as an HPF, the processing flow may include propellants (e.g., hypergols). Other functions of the PHSF as an HPF include hazardous system tests and checkout, build-up and mating of a payload to a solid-propellant upper stage motor, propellant system leak tests and other potentially explosive or hazardous operations. The facility can be used to process expendable launch vehicle payloads that have planetary protection cleanliness requirements or that carry nuclear material. The PHSF high bay also provides SLS payload fairing encapsulation capability, as needed.

[Figure: Figure 7-6. Payload Hazardous Servicing Facility (PHSF)]
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[Figure: Figure 7-7 depicts the PHSF and surrounding support facilities. Detailed information regarding facility capabilities are outlined in Table 7-5 and Table 7-6, as well as the section below.]

[Figure: Figure 7-7. PHSF and Surrounding Facilities]

[Table: Table 7-5. PHSF Capability Overview]

|  |  |  |  | High Bay |  |  | Air Lock |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Clean Work Area |  |  | Level 4, Class 100,000 |  |  | Level 5 Class 300,000 |  |  |
| Temperature |  |  | 71 (+/- 6) °F |  |  | 71 (+/- 6) °F |  |  |
| Relative Humidity |  |  | 60% maximum |  |  | 60% maximum |  |  |
| Usable Floor Space |  |  | 107 ft x 60 ft |  |  | 85 ft x 50 ft |  |  |
| Ceiling Height |  |  | 95 ft (28.96 m) |  |  | 90 ft (27.43 m) |  |  |
| Door Dimensions |  |  | 75 ft x 35 ft |  |  | 75 ft x 35 ft |  |  |
| Crane Type |  |  | Bridge |  |  | Bridge |  |  |
| Crane Capacity |  |  | 50 ton (45.3 t) |  |  | 15 ton (13.6 t) |  |  |
| Crane Hook Height |  |  | 74.5 ft (22.71 m) |  |  | 72.5 ft (22.10 m) |  |  |
Description

Description  120 V at 20 or 30 A in single phase at 60 Hz  208 V at 30 A with single phase at 60 Hz  208 Y/ 120 V at 30, 60, 100 A (3-phase) at 60 Hz  480 V at 100 or 200 A (3-phase) at 60 Hz  Backup power supplied by 1000 kw diesel generator
Liquids

compressed air to the service bay and airlock. Outlets have 5-micron filters and air is available at 90 psi at 185 ft3/ min (CFM) and at 125 psi with flow of 325 CFM  GHe is supplied via tube trailer or multi-pack K-bottle racks. Both sources are available through outlets on the west end at pressures of 50 psi, 1,000 psi, 3,000 psi and 3,800 psi  GN2 is supplied from unfiltered 4,800 psi system. Connection and regulating panel are located in west end of the building. Panel filters GN2 to 10 microns and regulates GN2 down to 50 psi, 750 psi and 3,000 psi  Breathing air is supplied by external source (mobile tube bank or portable Kbottles) at 2,400 psi. It is passed through 10-micron filter and is regulated at 100 psi  HEPA filters are mounted in the ceilings of the service bay, airlock and equipment airlock. At the filter, discharge is guaranteed class 5,000 air for the air conditioning and reheat systems. These systems allow temperature to be maintained within 6° F of 71° F with a maximum humidity of 60 percent  With spacecraft present in the service bay, air is exchanged at a minimum of seven times per hour and at least four times per hour in the airlock  Regulated breathing air for Propellant Handlers Ensemble (PHE) operations