Science and Technology SATellite Program of KOREA
NovemberNovember 2,2, 20042004
Korea Aerospace Research Institute
Korea Aerospace Research Institute -1- Contents
Introduction
KITSAT (Korea Institute of Technology SATellite)
STSAT (Science and Technology SATellite)
KOMPSAT (KOrea Multi-Purpose SATellite)
Satellite I&T Facilities at KARI
Concluding Remarks
Korea Aerospace Research Institute -2- Introduction
Space Development Activities in Korea are based on the “National Space Program” (NSP) which was Initially established in 1996.
According to the NSP, 20 Satellites are/will be Developed by 2015. - 8 KOMPSAT Series : Remote Sensing - 7 Science Satellites : Scientific Experiment, Technology Test - 5 GEO Satellites : Communication, Broadcasting, Meteorology
Purpose of Science Satellites are - Space Observation and Sensing Space Environments - Various Scientific Experiments - Technology Development
Korea Aerospace Research Institute -3- National Space Program : Satellites
2006
2001 2008 STSAT-3 2005 2007 1999 KOMPSAT-2 STSAT-2 KOMPSAT-1 2003 STSAT-1 2005 2008 2009 KOREASAT-5 COMS-1 KOMPSAT-3 1999 2009 KOREASAT-3 KOMPSAT-4
1999 KITSAT-3 2010 KOMPSAT-5
2011 2011 2012 STSAT-4 KOMPSAT-6 2014 2013 2015 2015 KOMPSAT-7 STSAT-5 STSAT-6 KOMPSAT-8 2014 2015 COMS-2 KOREASAT-6
KOMPSAT : KOrea Multi-Purpose SATellite KOREASAT : KOREA communication and broadcasting SATellite COMS : Communication, Ocean and Meteorological Satellite STSAT : Science & Technology SATellite
Korea Aerospace Research Institute -4- KITSAT
Korea Aerospace Research Institute -5- Korea Institute of Technology Satellite-1 (KITSAT-1)
• Development Outline – Joint development by SaTReC, KAIST & U. of Surrey, UK * SaTReC (SaTellite Technology Research Center) – Launch : Aug. 11, 1992 – Technology acquisition • Mission Objectives – Acquire satellite development technology – Train experts in satellite technology – Enhance national awareness in space development – Promote national space education programs – Perform research on the space environment • Configuration – Dimension : 352 x 356 x 670 mm – Weight : 48.6 kg
Korea Aerospace Research Institute -6- Korea Institute of Technology Satellite-2 (KITSAT-2)
• Development Outline – Development by SaTReC, KAIST with domestic industry to verify and enhance the technology used in the KITSAT-1 program – Launch : Sep. 26, 1993 – New payloads • Mission Objectives – Improve and enhance the KITSAT-1 system – Use domestically manufactured components – Launch and test Korean experiment modules – Promote domestic space industry • Configuration – Dimension : 352 x 356 x 670 mm – Weight : 47.5 kg
Korea Aerospace Research Institute -7- Korea Institute of Technology Satellite-3 (KITSAT-3)
• Development Outline – Indigenous Development by SaTReC, KAIST – Launch : May 26, 1999 – Unique model / Advanced payloads • Mission Objectives – Develop a 3-axis stabilized satellite – Develop a low cost remote sensing satellite system – Acquire scientific data for space plasma research – Continue the education and training of satellite engineers • Configuration – Dimension : 495 x 604 x 852 mm – Weight : 110 kg
Refer to http://satrec.kaist.ac.kr/english/SaTReC.html
Korea Aerospace Research Institute -8- STSAT
Korea Aerospace Research Institute -9- STSAT-1 Program Overview
Objectives - Development a high performance small satellite bus - Development and operation of the high performance scientific payload - Research on space science and develop advanced technology for future space missions Periods : 1998. 10. ~ 2003. 12. Budget : about $ 10 million General Supervising Organization : Korea Aerospace Research Institute (KARI) Development Organization : KAIST SaTellite Technology Research Center (SaTReC)
Korea Aerospace Research Institute -10- STSAT-1 System Overview
g Mission Orbit : 682 km, Sun Synchronous g Satellite Weight : 106 kg g Life time : 2 years g Power : 150 W g Payload - FIMS: Far ultra-violet IMaging Spectrograph - Space Physics Package * SST : Solid-State Telescope * ESA : Electro-Static Analyzer * LP : Langmuir Probe * SM : Scientific Magnetometer g Launch : Sep. 27, 2003 by KOSMOS-3M
Korea Aerospace Research Institute -11- STSAT-1 Satellite Configuration
NAST ESA
WIST SST FIMS MMS
LP PDTx
X-band Antenna TT&C S-band Antenna
DCS Battery Module RCU
Korea Aerospace Research Institute -12- STSAT-1 Launch
Launch Date - Sep. 27, 2003
Launch Site - Plesetsk Space Center, Russia
STSAT-1 was launched with ; - Mozhayets 4 (Russia) - Larets (Russia) - BilSat-1 (Turkey) - NigeriaSat-1 (Nigeria) - UK-DMC (England)
Korea Aerospace Research Institute -13- STSAT-1 Data by FIMS (1/4)
Energetic particle flux for an AURORA
Korea Aerospace Research Institute -14- STSAT-1 Data by FIMS (2/4)
Emission features of Vela supernova remnants at the C IV (1550 angstrom) emission line.
Korea Aerospace Research Institute -15- STSAT-1 Data by FIMS (3/4)
L-band Spectrum of Vela supernova remnants
Korea Aerospace Research Institute -16- STSAT-1 Data by FIMS (4/4)
S-band Spectrum of Vela supernova remnants
Korea Aerospace Research Institute -17- STSAT-2 Program Overview
Objectives - To develop a low earth orbit satellite which will be launched on KSLV-1 (Korea Space Launch Vehicle-1) from NARO Space Center in KOREA - To monitor atmosphere and earth radiation by Microwave Radiometer - To determine precise orbit parameters of STSAT-2 using a Satellite Laser Ranging - To validate advanced technologies for small spacecrafts Periods : 2002. 10. ~ 2005. 12. Budget : about $ 11 million General Supervising Organization : Korea Aerospace Research Institute(KARI) Development Organization : KAIST SaTellite Technology Research Center (SaTReC), Gwangju Institute of Science and Technology
Korea Aerospace Research Institute -18- STSAT-2 System Overview
Mission Orbit : 300X1500 km Elliptic Orbit, Inclination Angle 80 deg. Satellite Weight : 100 kg Life time : 2 years Power : 130 W Payload ¾Microwave Radiometer - To monitor atmosphere and earth radiation ¾SLR : Satellite Laser Reflector - To develop LRA(Laser Reflector Array) for satellite - To determine precise orbit of STSAT-2 Launch Vehicle : KSLV-1 (Korea Space Launch Vehicle -1) Launch Site : NARO Space Center in KOREA
Korea Aerospace Research Institute -19- STSAT-2 Satellite Configuration
DHST Electronic s
FDS S DHS T FAS S TxRx Radiomete r Wheel
ACS Gyro
EPS CDS EMT
Korea Aerospace Research Institute -20- STSAT-2 Radiometer Mission
Radiometer : Measurement of brightness temperature, Detection of natural radiation energy
STSAT-2 < Application Areas>
H=300 X1500 km ◇ Hydrology - Water surface, flood mapping Dual band horn antenna ◇ Agriculture - Soil moisture Earth ◇ Oceans Foot Print - Surface wind speed, surface temperature ◇ Severe Storms Flight direction - Tropical cyclones, local storms ◇ Meteorology and climatology - Temperature profile, water vapor profile
Korea Aerospace Research Institute -21- STSAT-2 SLR (Satellite Laser Reflector) Mission
STSAT-2
Laser Reflection
LRA (Laser Reflector Array)
SLR data user
SLR data processing center SLR ground-station
Korea Aerospace Research Institute -22- KOMPSAT
Korea Aerospace Research Institute -23- Overview of KOMPSAT-1
• Development Outline – Period : Nov. ‘94 ~ Jan. ‘00 – Joint development by KARI & TRW – Launch : Dec. 22, 1999 • Mission – Cartography of Korean peninsula – Resolution : 6.6 m – Ocean Observation – High energy particles & Ionosphere measurement • Configuration – BUS Diameter 1.35 m X Height 2.5 m – Weight : 470 kg
Korea Aerospace Research Institute -24- Overview of KOMPSAT-2
• Development Outline – Period : Dec. ‘99 ~ Dec. ‘05 – Indigenous Development by KARI
• Payload : Multi-Spectral Camera – Resolution : 1m panchromatic, 4m color – Joint development by KARI & ELOP
• Configuration – BUS Diameter 1.85m X Height 2.6m – Weight : 800kg
Korea Aerospace Research Institute -25- KOMPSAT-2 Configuration
MSC
S-Band Antenna X-Band Antenna
Star Tracker
CSSA RWA
Propellant Tank Solar Array
RDU
MSC : Multi-Spectral Camera CSSA : Coarse Sun Sensor Assembly RDU : Remote Drive Unit OBC : On-Board Computer Adapter RWA : Reaction Wheel Assembly OBC
Korea Aerospace Research Institute -26- KOMPSAT-1 & 2 Components
Hanwha (Propulsion)
Propulsion Assy Dual Thruster MLI RDU VDE Battery Radiator Doowon (Thermal) FSSA CSSA Daewoo (Control)
PCU ECU Payload Module Equipment Module
OBC S-band Transponder DDC SAR KAI (Telemetry) Propulsion Module Adapter KAI (Power) Korean Air (Structure)
MLI : Multi-Layer Insulator PCU : Power Control Unit ECU : EPS Control Unit DDC : Deployment Device Controller SAR : Solar Array Regulator VDE : Valve Drive Electronics RDU : Remote Drive Unit FSSA : Fine Sun Sensor Ass’y KAI : Korea Aerospace Industries
Korea Aerospace Research Institute -27- KOMPSAT-2 Components
Structure & Mechanism Subsystem (Korean Air)
Panel Platform
Strut
Bus Structure Adapter
Korea Aerospace Research Institute -28- KOMPSAT-2 Components
Thermal Control Subsystem (Doowon)
MLI SSM
MLI Heat Pipe & Radiator
Korea Aerospace Research Institute -29- KOMPSAT-2 Components
Attitude & Orbit Control Subsystem (Daewoo)
VDE RDU
CSSA FSSA
Korea Aerospace Research Institute -30- KOMPSAT-2 Components
Electrical Power Subsystem (KAI)
PCU Solar Array
SAR ECU
Korea Aerospace Research Institute -31- KOMPSAT-2 Components
Propulsion Subsystem (Hanwha)
DTM
Propulsion subsystem Assembly
Piping
Korea Aerospace Research Institute -32- KOMPSAT-2 Components
Telemetry, Command & Ranging Subsystem (KAI)
OBC Transponder
Korea Aerospace Research Institute -33- Satellite I&T Facilities at KARI
Korea Aerospace Research Institute -34- Satellite I&T Center in KARI
Facility for Satellite Integration & Test - about 10,000 m2 area building - overall Clean Class : better than 100,000
Korea Aerospace Research Institute -35- Satellite I&T Facility in KARI
Assembly & Integration Hall
• Cleanliness : 10,000 Class, 100 Class for optical equipment • Angular accuracy : 1/360° • Position accuracy : 50 µm • Facility can accommodate two satellite A/I simultaneously
Korea Aerospace Research Institute -36- Satellite I&T Facility in KARI
Orbit Environmental Test Lab.
T/V Chamber Thermal Shock Chamber • Tem. Range : -180 oCto +120 oC • Vacuum Level : 10-7 Torr
• Thermal Vacuum Chamber - 3.6 m Dia. X 3 m - 1.0 m Dia. X 1.5 m T/V Chamber - 0.7 m Dia. X 1 m
• Thermal Shock Chamber
• Thermal Cycle Chamber Thermal Cycle Chamber
Korea Aerospace Research Institute -37- Satellite I&T Facility in KARI
Launch Environmental Test Lab.
Vibration Shaker System Mass Property Measurement System - 80 kN Base Shaking System - Load carrying capability : 4,500 kg -150 KN Base Shaking System - Maximum overturning moment : 97 kg-m - Spin rate : 10 to 300 RPM - Maximum MOI : 5,200 kg-m
Korea Aerospace Research Institute -38- Satellite I&T Facility in KARI
Acoustic Chamber
• Effective Size : 1,228 m3 (8.5m(L)x10.7m(W)x13.5m(H))
• Frequency Range 30Hz ∼ 10,000Hz
• Overall SPL : More than 152 dB
Korea Aerospace Research Institute -39- Satellite I&T Facility in KARI
EMI/EMC Chamber
• Anechoic Chamber : 13(L)x12(W)x7(H)m
• Cleanliness : 100,000 Class
• Shielding Performance : - Attenuation to magnetic field ≥ 70 dB at 14 KHz ≥ 90 dB at 200 KHz
- Attenuation to electric field ≥ 120 dB at 200 KHz to 50 MHz
- Attenuation to plane wave ≥ 120 dB at 50 MHz to 1 GHz ≥ 100 dB at 1 GHz to 40 GHz
Korea Aerospace Research Institute -40- Concluding Remarks
Development of Science Satellites in Korea will continue according to the “National Space Program” for Technical and Peaceful Purposes.
International Cooperation should be Continued and Expanded.
Exchange/Share Information and Experience in Space Technology will Benefit All of Us.
Korea Aerospace Research Institute -41-