University Nano-Satellite Activities in Korea : Current Status and …unisec.jp/nanosat_symposium/1st/files/10th.AM/... · 2015. 2. 24. · STSAT-3 Program ( Laboratory-university

University Nano-Satellite Activities in Korea : Current Status and Vision

The 1st Nano-Satellite Symposium

H h B

The 1 Nano Satellite Symposium

June 10 -11, 2010, University of Tokyo

Hyochoong BangKorea Advanced Institute of Science

and Technology

Overview on Korea Space Program

2025Lunar

2003STSAT 2010

2010STSAT-2

2010 KSLV-2020

Lander

2006KOMPSAT-2

1999

STSAT-1

2010COMS-11999

KOMPSAT-1

KSLV1

2020Lunar Orbiter

1999KITSAT

-32010

KOMPSAT-5

TBD

20172012

2011STSAT-3

KSLV-I I

2011KOMPSAT 3

KOMPSAT-7 TBDGeo-Stat. MultiSat

2012KOMPSAT-

3A

2015KOMPSAT-6

KOMPSAT-3

University Nano-Satellite Activities in Korea The 1St Nano-Satellite Symposium


KOMPSAT Program

KOMPSAT - 3

- ’04 ~ ’11

- Critical Design CompletedCritical Design Completed

- To be launched at ’11

KOMPSAT - 2KOMPSAT 2

- Launced at ’06.7

- Operational



Korea Space Launch Vehicle(KSLV-1)

-First launch in 2009Second launch in 2010


- Second launch in 2010- Deliver ST-SAT 2 at LEO

University Space Activity in Korea

There are about 15 universities in Korea with aerospace engineering program.

Three or four universities are now actively involved withThree or four universities are now actively involved with Nano/Pico satellite programs.- Korea Aerospace University, Seoul National University

K Ad d I tit t f S i d T h l (KAIST)Korea Advanced Institute of Science and Technology (KAIST)

There was only one launch attempt for CubeSat by Korea Aerospace University in 2006 with Russian launch vehicle.

No launch plan is scheduled in the near future No launch plan is scheduled in the near future.


Korea Aerospace University (CubeSat)

-HauSat-1 by Korea Aerospace University

: Led by Prof. YungGeun Changy g g

: The very first space grade Nanosat ever developed in Korea

- Launch attempt was made in 2006 by Dnepr launch vehicle.


Launch attempt was made in 2006 by Dnepr launch vehicle.

Cansat Program at SaTRec (KAIST)Cansat Program at SaTRec (KAIST)

Program Overview

Title: Understanding of a real satellite by developing the CanSatg y p g

(Research & Education Program funded by KOSEF)

Participating students’ affiliation: Korea Science Academy (3 students)students)

Program leader: Satellite Technology Research Center, KAIST

Schedule: 2007.03~2008.02

‘ ’The cansat was named ‘KSAsat’ after Korea Science Academy.

ObjectivesObjectives

Better understanding of satellite system for young students

Concept design and flight model manufacturing

D i i i & l i h h fli hData acquisition & analysis through cansat flight test


CansatCansat Program at Program at SaTRecSaTRec(KAIST)(KAIST)

Overall configuration of KSAsat Bus configurationOverall configuration of KSAsat

Antenna

Bus configuration

assembly

battery

GPS

Supporting Disk

assembly

PCB2PCB1G S

Supportingstructures

Payload configurationCan Camera (payload)

Camera( l d)

Wirerouting

Fi ld f iSh k b b C


(payload) Field of viewShock absorber Camera installation

Cansat Program at SaTRec (KAIST)Cansat Program at SaTRec (KAIST)

• Implementation of launcher and ground-station

Launcher configuration for KSAsat Ground-station configuration for KSAsatLauncher configuration for KSAsat Ground-station configuration for KSAsat

Battery ParachuteContainer

Transmitter

Receiver

Opening mechanis

mm

Lift off by balloon; fly by parachute

parachute

Transceiver, computer and operating S/W

parachute

KSAsat


KSAsat




• Altitude: 100~150m

• Flight time < 5min

• Instruments:

– CameraP h l i El i l i RF Fi ld T

– GPS

– Pressure sensor

– Accelerometer

Parachute evaluationElectronics evaluation RF Field Test

Accelerometer

– Photo-detector

KSAsat installation Baloon Lift Off Ground Receiving


Parachute Deploy KSAsat flight LandingSeparation of KSAsat

Cansat Program at SaTRec(KAIST)Cansat Program at SaTRec(KAIST)

• Observed area: Playground in Daeduk Science Town, Daejeon, Korea

Altitude information measured by GPS


Seoul National University( SNU Nano) SatelliteSeoul National University( SNU Nano) Satellite

Mission Future Plan

Post Ejection Stand by Remote Sensing

Telemetry Transmission Tracking Mirror


SNU Nano Satellite ActivitySNU Nano Satellite Activity

Mission Future Plan

TetherEnergy

Transmission

Formation Re-entry


Flight

SNU Nano Satellite ActivitySNU Nano Satellite Activity

Ground Station EstablishmentEquipment Product

Ground StationServer /

Controller PCDell DimensionTM 5150 2ps

144Mh A t /Ground Antenna

144Mhz Antenna /430Mhz Antenna

(Cross Yagi Antenna)

Transceiver IC-910H (ICOM)Transceiver IC 910H (ICOM)

TNCMFJ-1278B

(Amateur Radio TNCs)

TNC PortableTM-D700E (KENWOOD)

Rotator ComputerC t ll

GS-232 (Yaesu)

15

Controller

Antenna Rotator G-5500 (Yaesu)

P S liPS-3100 2ps


1515Power Supplier

PS 3100 2ps (RADiAN)

ARLISS ParticipationARLISS Participation

2006SNU‐UT co‐work• Fly‐Back type

2008• Run‐Back type • Couldn’t stand the load

2009• Run‐Back type • Won the 3rd prize

2007• Fly‐Back type• Won the 2nd prize

• Separate to Mother & Daughter CanSat•Use Nichrome Wire

during launching• Small wheel and lower garage• Using heat wire when

• Stand the load during launching• Using Belt‐type Tail when escape from parachute

• Stiffness of frame• Light weight (about 600g)

•Use Simple Guidance escape from parachute

p& Control Algorithm


Flight TestFlight Test

Flying Balloon Test Vibration Test

2009 ARLISS


OutreachOutreach

Aerospace Exhibition

• Introduce CANSAT Activities to

Capstone Design Fair

•Exhibit and Introduce CANSAT

R&E Program for Science Senior High School

• Teach Basic CANSAT Activities Introduce CANSAT Activities to Students in University

Exhibit and Introduce CANSAT Activities to the General Public

Teach Basic CANSAT Activities to High School Students


Nano/Pico Sat Activity at KAIST

Main Computer (CPU) Power

• Li-Polymer Battery

• Switching regulator to supply 5V voltage.

U d d tU d d tCommunication Payload

-Undergraduate satellite design team at Aerospace Eng. Dept for space

-Undergraduate satellite design team at Aerospace Eng. Dept for space

• GPS- FGPMMOPA1

Dept. for space education.

- Build and test a

Dept. for space education.

- Build and test a

• CMOS CameraCanSat model

- Working on CubeSat model

CanSat model

- Working on CubeSat model


CubeSat modelCubeSat model

NanoSaT Activity at KAIST


CubeSaT Activity at KAIST

Subsystem Components


Spacecraft Attitude Control at KAIST

Spacecraft Attitude Control S/W SimulatorSpacecraft attitude control scenario simulationAttitude dynamics modelingV lid ti f ttit d t l l

Three‐axis Attitude Control Simulator :CMG(Control Moment Gyro Testbed)Agile attitude maneuver test Validation of attitude control lawAgile attitude maneuver testCMG steering law design

Single‐axis Attitude Control SimulatorOn‐off thruster modulation test

Fine attitude estimation, gyroless spacecraft operationAdvanced CMOS star trackersRobust star pattern identification


KIT Satellite at Satellite Research Center

Science and Technology Satellite (KAIST)

-Satellite Research Center at

<KITSAT-1> <STSAT-1><KITSAT-2> <KITSAT-3>

-Satellite Research Center at KAIST

- Space science and ptechnology demonstration

- Academic program


Science-Technology Satellite Program

STSAT-3 Program (Objective Summary)

Mission Orbit Deep-space Observation- Sun-synchronous Orbit- Altitude : 400~800

Deep-space Observation- Galactic plane survey (6x360 deg)- Cosmic background radiation

measurement (3.67x3.67 deg)

Earth Observation- Water Quality Examination- Yellow Dust Observation( 30m/60m Resolution )


KIT Satellite at Satellite Research Center

STSAT-3 Program ( Laboratory-university Cooperation )

Entire system- Program management - Entire system- Mission analysis- Ground station

- Primary payload

Program management

- Hall thruster- Onboard computer- Electric system- AOCS FSW- Battery- Structure, Heat ControlStructure, Heat Control

- 7 research laboratories and universities participate- 7 research laboratories and universities participate

- Sun electric power system

universities participate

- 8 universities and institutes are actively participating

universities participate

- 8 universities and institutes are actively participating


- Secondary payload

Issues and Vision

-University Nano-satellite program is at early development stage, but its future prospect is promising in Korea.

- The main obstacles are lack of experience and infrastructure, especially finding launch opportunity.p y g pp y

- Need international cooperation for jump-start. Short-term student exchange and information sharing are recommendedexchange and information-sharing are recommended.

- Should work hard to find new mission concept and break-throughgtechnologies.

University space consortium is a good starting point which could- University space consortium is a good starting point, which could increase government funding opportunity.

: Strong need to diversify space programs


: New paradigm and needs for space technology development

Documents

University Nano-Satellite Activities in Korea : Current Status and …unisec.jp/nanosat_symposium/1st/files/10th.AM/... · 2015. 2. 24. · STSAT-3 Program ( Laboratory-university