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