Hodoyoshi-1‘14ハイブリッド

CanSat & Rocket Experiment(‘99～）

ロケット

What you canand SHOULD learn from CanSat ?
Shinichi Nakasuka
University of Tokyo
PRISM ‘09

CubeSat 03,05

Nano-JASMINE (TBD)

Initial Training forsatellite development
CanSats 1999 - now

ARLISS (A Rocket Launch for International
Student Satellites)- Annual suborbital launch experiment in USA ARLISS 1999：Sept. 11 (Japan:2, USA:2)⚫ Univ.of Tokyo, Titech, Arizona State, etc.
⚫ ARLISS 2000: July 28-29 (Japan:4, USA:3)⚫ ARLISS 2001: August 24-25 (Japan:5, USA:2)⚫ ARLISS 2002: August 2-3 (Japan:6, USA:3)⚫ ARLISS 2003: Sept.26-27 (Japan:6, USA:3)⚫ ARLISS 2004: Sept.24-25 (Japan:6, USA:3)⚫ ARLISS 2005: Sept.21-23 (Japan:7, USA:3)⚫ ARLISS 2006 Sept.20-22 (Japan:8 USA:3 Europe:1)⚫ ARLISS 2007 Sept.12-15 (Japan:10 USA:3 Korea:1)⚫ ARLISS 2008 Sept.15-20: 10th Memorial ARLISS !
⚫

ARLISS 2016 18th （Japan:12, USA:2, Korea, Egypt)⚫ ARLISS 2017 19th Sept.13-17 (Japan:13 USA:2 Korea:1)⚫ ARLISS 2018 20th Memorial !!
⚫

2001～ Comeback Competition in ARLISSEach year, winner
was decided whocame backnearest to thetarget!

University of Tokyo’s
CanSat reach the target

2018, Students Challenge “Flyback”

Result was 900m and was awarded Best Comeback Technology Award

Come-Back Competition 2007

History of Flyback vs. RoverNo Control

Minimum Distance(m)

3000
2500
2000
1500
1000
50002001 2002 2003 2004 2005 2006 2007 2008
Year 6 m0 m !!

45 mflybackrovermeterCompetition Winner Results (2008-2017)

3000
2500

2000
1500

After 2008,
rover has been
dominating until
now

1000
50002008

2010

meter2012

2014

2016

Detail1098762018

TohokuUniversity

2016 UT wonwith 3.8m

2018
The University ofElectro-Communications
Won with 5.8m5The University ofTokyo

432102008

The University ofElectro-Communications
2010

20122014

20162018

20th Anniversary
Participating Comeback CanSats

Balloon Experiment in Japan• Itakura Competition 2002
(Thermal balloon)• Noshiro Space Event 2005～
Drone or UAV are
also used recently
100-200m
HeliumBalloonCANSAT
GondoraTetherCANSAT
Drop（20 sec）

CanSat lead to “University Satellites”
53 university satellites launched in 2003-2019 in Japan

Almost all the universities experienced CanSat.
CanSat’s experiences became good base !

Three Important Levels to be Learned

Satellite SystemsThruster

CommandMemoryTorquerMotor•Actuatoruplink

downlink

ReceiverTransmitter

CommandComm. Computer
Current
statusData

OBC

Command•Communication
Sensor data

Sensors,
experimental
Datasystem,camera, etc.

S1 S2Command•Mission Subsystem •C&DHBus
controller•Sensor

S3 S4

S5

voltage, temperature
attitude sensors

Power System
Thermal Control System
Solar Cell

Battery

Structure andMechanism System

CanSat Systems
ThrusterCommandMemoryTorquer

Motor•Actuator

uplinkdownlink

ReceiverTransmitter

CommandComm. Computer
Current
statusData

OBC

Command•Communication
Sensor dataSensors,
experimental
Datasystem,
camera, etc.

S1 S2Command•Mission Subsystem •C&DHBuscontroller•Sensor

S3 S4

S5

voltage, temperature
attitude sensors

Power System
Thermal Control System
Solar Cell

BatteryStructure andMechanism System

Space Systems Technologies• Even in small scale, the following important
technologies and skills can be learnt:– System analysis and design (weight, power budgeting)– Ground tests to assure reliable system– Imagine what may happen and countermeasures• We should develop from parts, not by buying
components, by which we could learn:– How to make components from parts or by modifying theCOTS components• Systems usually do not work as expected.
Try many many many “test + refine” processes !
– If you succeed 10 times consecutively, then the system
will work in the real environmentProject Management for Space Systems⚫

Practical Training of Whole Cycle of Space Project
Mission conceptualization, satellite design, fabrication,
ground test, modification, launch and operation⚫ Know what is important and what is not.
⚫

⚫

Importance for Engineering Education
Synthesis (not Analysis) of an really working system⚫ Feedbacks from the real world to evaluate design, test, etc.
⚫ Learning from failures (while project cost is small)⚫

⚫

Education of Project Management
Four Managements: “Time, human resource, cost and risk”⚫ Team work, conflict resolution, discussion, documentation⚫ International cooperation, negotiation, mutual understanding⚫

General Skills and Mind Set⚫

“Problem Setting”
Appropriate setting of the target mission⚫ Not too high and not too low targets (with priorities)⚫ Considering your own technological level⚫

⚫

“Problem Solving”
Utilizing anything, asking people from outside⚫ Discussion withing your team to create ideas⚫

⚫

Strong will and “Never give up” Mind
Many “trial and errors” to find a solution: “tenacity”⚫ Team spirits to tackle difficult problems together⚫

⚫

Think up what you can do within limited resources
Idea on how to drop a CanSat from high position⚫ Even without electronics, you can do a CanSat contest⚫

Simple CanSat Contest without electronics
for mid-high school students• Flight time: how to make the flight time fromrelease to ground be (for example) 15 seconds ?
– Each team can try three or four times.
– Gradually modifying parachute size and weight of CanSat• Standing up: If it stands-up
at landing, add point• Breaking a Balloon:
If it breaks a balloon at landing
with any mechanism, add point• You can learn “problem solving” with only structure
18parts. (cheap and easy for younger generation!)Middle-High School CanSat Contest
in Fukui Prefecture (‘16-’19)

CubeSat/Micro-Sat Fleet
by The University of Tokyo
XI-IV(2003)

111
9Capacity Building
Support Projects

PRISM (2009)

Education
In operation (16 years)
Experiment

In operation (10 years)

Satellites Launched

Satellites will belaunched soon

16104

Years of In-orbit Students GraduatedSatellite Operations

Earth ObservationMicroDragon(2019)

HODOYOSHI 1, 3, 4 (2014)

XI-V(2005)

4In operation (5 years) Collaborator: Axelspace, NESTRA

In operation (0.5 years)
Collaborator: VNSC

In operation (14 years)

Nano-JASMINE
Awaiting launch
Collaborator: NAOJ

Space Science

Deep Space Missions
RWASAT-1（2019）

TRICOM-1R(2018)
End of operation (0.5 years)
Collaborator: JAXAWill be launched in 2019
Collaborator: Rwanda

PROCYON(2014)End of operation (3 years)
Collaborator: JAXATechnology
Demonstration
AQT-D(2019)

G-Satellite

EQUULEUS

Will be launched in 2019
Collaborator: UT-SPL

Will be launched in 2020
Collaborator: TOCOG, JAXAIn development
Collaborator: JAXAEntertainmentSummaryCanSat – A Gateway to Space !

- Technologies for Satellite• CanSat
is “theManagement
gateway to space.”- Project- Problem Solving- Never Give-up Mind !!

20th Memorial ARLISSBlack Rock, Nevada, USA 2018

Reference
UNISEC 12 important Rules

(1) Technology, Procedure
1. Be honest regarding project feasibility – openly
recognize technology and schedule risks that
may impact success.
2. Build a system which can work as designed inthe environment where fixing is impossible.
3. Do your best to avoid failing. Only in that case,
you can learn from failure.
4. Remember that there are rules that you must
follow - from Outer Space Treaty to internal rules
in your project.

(2) Management
5. Refer to the other’s achievements in the past,
and accumulate your own achievement on thatbasis.
6. Setup appropriate and realistic targets
considering your capability and capacity.
7. Recognize the pressure in other team members
working to demanding deadlines on challenging
projects; support and help reduce their stresswherever possible.
8. Evaluate your results realistically and reflect
them to your subsequent activities.

(3) Fundamental Spirits
9. Use imaginative and innovative ways of achieving
the maximum using available personnel, technicaland financial capabilities even if they are limited.
10.Identify and work with your rivals and competewith each other to stimulate innovation & mutual
growth. Recognize other people’s successes anduse these to stimulate yourself further.
11.Respect a spirit of mutual assistance. Seek ways
to contribute to others, not only seeking help foryourself.
12.Be careful not to be misled by the “bewitchingnature and allure of space” or by flattering words.
Be modest and sincere.