Science and Technology SATellite Program of KOREA

Transcription

1 Science and Technology SATellite Program of KOREA November 2,

2 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 -2-

3 Introduction Space Development Activities in Korea are based on the National Space Program (NSP) which was Initially established in According to the NSP, 20 Satellites are/will be Developed by 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 -3-

4 National Space Program : Satellites KOMPSAT KOREASAT STSAT KOMPSAT KOREASAT STSAT STSAT COMS KOMPSAT KOMPSAT KITSAT KOMPSAT STSAT KOMPSAT KOREASAT KOMPSAT COMS STSAT KOMPSAT STSAT KOMPSAT : KOrea Multi-Purpose SATellite KOREASAT : KOREA communication and broadcasting SATellite COMS : Communication, Ocean and Meteorological Satellite STSAT : Science & Technology SATellite -4-

5 KITSAT -5-

6 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 -6-

7 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 -7-

8 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 -8-

9 STSAT -9-

10 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 : ~ Budget : about $ 10 million General Supervising Organization : (KARI) Development Organization : KAIST SaTellite Technology Research Center (SaTReC( SaTReC) -10-

11 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 -11-

12 STSAT-1 Satellite Configuration NAST WIST FIMS LP ESA SST MMS PDTx TT&C X-band Antenna S-band Antenna DCS Battery Module RCU -12-

13 STSAT-1 Launch Launch Date - Sep. 27, 2003 Launch Site - Plesetsk Space Center, Russia STSAT-1 1 was launched with ; - Mozhayets 4 (Russia) - Larets (Russia) - BilSat-1 (Turkey) - NigeriaSat-1 (Nigeria) - UK-DMC (England) -13-

14 STSAT-1 Data by FIMS (1/4) Energetic particle flux for an AURORA -14-

15 STSAT-1 Data by FIMS (2/4) Emission features of Vela supernova remnants at the C IV (1550 angstrom) emission line. -15-

16 STSAT-1 Data by FIMS (3/4) L-band Spectrum of Vela supernova remnants -16-

17 STSAT-1 Data by FIMS (4/4) S-band Spectrum of Vela supernova remnants -17-

18 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 : ~ Budget : about $ 11 million General Supervising Organization : (KARI) Development Organization : KAIST SaTellite Technology Research Center (SaTReC( SaTReC), Gwangju Institute of Science and Technology -18-

19 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 Microwave Radiometer - To monitor atmosphere and earth radiation SLR : Satellite Laser Reflector - To develop LRA(Laser Reflector Array) for satellite - To determine precise orbit of STSAT-2 Launch Vehicle : KSLV-1 1 (Korea Space Launch Vehicle -1) Launch Site : NARO Space Center in KOREA -19-

20 STSAT-2 Satellite Configuration DHST Electronic s FDS S TxRx Wheel ACS EPS EMT DHS T FAS S Radiomete r Gyro CDS -20-

21 STSAT-2 Radiometer Mission Radiometer : Measurement of brightness temperature, Detection of natural radiation energy STSAT-2 H=300 X1500 km Dual band horn antenna Earth Foot Print Flight direction < Application Areas> Hydrology - Water surface, flood mapping Agriculture - Soil moisture Oceans - Surface wind speed, surface temperature Severe Storms - Tropical cyclones, local storms Meteorology and climatology - Temperature profile, water vapor profile -21-

22 STSAT-2 SLR (Satellite Laser Reflector) Mission STSAT-2 Laser Reflection LRA (Laser Reflector Array) SLR data user SLR ground-station SLR data processing center -22-

23 KOMPSAT -23-

24 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 -24-

25 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

26 KOMPSAT-2 Configuration MSC S-Band Antenna X-Band Antenna Star Tracker CSSA RWA Solar Array Propellant Tank RDU MSC : Multi-Spectral Camera CSSA : Coarse Sun Sensor Assembly RDU : Remote Drive Unit OBC : On-Board Computer RWA : Reaction Wheel Assembly Adapter OBC

27 KOMPSAT-1 & 2 Components Hanwha (Propulsion) Battery Radiator MLI Propulsion Assy Dual Thruster RDU VDE Doowon (Thermal) FSSA CSSA Daewoo (Control) PCU ECU Payload Module Equipment Module DDC SAR KAI (Power) Propulsion Module Adapter 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 OBC S-band Transponder KAI (Telemetry) -27-

28 KOMPSAT-2 Components Structure & Mechanism Subsystem (Korean Air) Panel Platform Strut Bus Structure Adapter -28-

29 KOMPSAT-2 Components Thermal Control Subsystem (Doowon) MLI SSM MLI Heat Pipe & Radiator -29-

30 KOMPSAT-2 Components Attitude & Orbit Control Subsystem (Daewoo) VDE RDU FSSA CSSA -30-

31 KOMPSAT-2 Components Electrical Power Subsystem (KAI) PCU Solar Array SAR ECU -31-

32 KOMPSAT-2 Components Propulsion Subsystem (Hanwha) DTM Propulsion subsystem Assembly Piping -32-

33 KOMPSAT-2 Components Telemetry, Command & Ranging Subsystem (KAI) OBC Transponder -33-

34 Satellite I&T Facilities at KARI -34-

35 Satellite I&T Center in KARI Facility for Satellite Integration & Test - about 10,000 m 2 area building - overall Clean Class : better than 100,

36 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 -36-

37 Satellite I&T Facility in KARI Orbit Environmental Test Lab. T/V Chamber Tem. Range : -180 o Cto +120 Vacuum Level : 10-7 Torr o C Thermal Shock Chamber T/V Chamber Thermal Vacuum Chamber m Dia. X 3 m m Dia. X 1.5 m m Dia. X 1 m Thermal Shock Chamber Thermal Cycle Chamber Thermal Cycle Chamber -37-

38 Satellite I&T Facility in KARI Launch Environmental Test Lab. Vibration Shaker System - 80 kn Base Shaking System -150 KN Base Shaking System Mass Property Measurement System - Load carrying capability : 4,500 kg - Maximum overturning moment : 97 kg-m - Spin rate : 10 to 300 RPM - Maximum MOI : 5,200 kg-m -38-

39 Satellite I&T Facility in KARI Acoustic Chamber Effective Size : 1,228 m 3 (8.5m(L)x10.7m(W)x13.5m(H)) Frequency Range 30Hz 10,000Hz Overall SPL : More than 152 db -39-

40 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 -40-

41 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. -41-