1
Current Status of KOMPSAT Program
Dosoon Hwang
Korea Aerospace Research Institute
November 23, 2006
2
Contents
• Introduction to KARIKOMPSAT - 1 & 2• Operational Satellites in KARI
– KOMPSAT-1– KOMPSAT-2
• National Space Development Plan
• Developing Satellites in KARI– KOMPSAT-3– KOMPSAT-5
3
An Introduction to KARI
• KARI (Korea Aerospace Research Institute)– Established in 1989, the Korea Aerospace Research Institute (KARI)
has been devoted to fulfilling its role as the leading national aerospace R&D institute in Korea.
– R&D activities at KARI can be categorized into three areas: • the development of cutting edge technology aircraft, • the development of satellites, and • the development of space launch vehicles.
– KARI also performs quality certification of aircraft and space products for the government.
– Number of Employees: 700– KARI is located in the Daeduk Science Town (in Daejeon) which is
140km south of Seoul. – Web site: http://www.kari.re.kr
4
KARI view in Google Earth
5
KOMPSAT-1 (Korea Multi-Purpose Satellite-1)• Development Outline
– Period : Nov. 1994 ~ Jan. 2000– Joint development by KARI & TRW– Launch : Dec. 22, 1999
• Mission– Cartography of Korean peninsula– Ocean Observation– High energy particles & Ionosphere
measurement• Orbit : 685km Sun-synchronous, 10:45
LTAN• Mission life-time: 3 years• Configuration
– BUS Diameter 1.35 m X Height 2.5 m– Weight, Power : 470 kg, 646W– Resolution/ Swath : 6.6 m/ 17km
KOMPSAT - 1
6
Satellite Ground Station in KARI
7
Seoul (EOC Image Mosaic)2000.2.15 (L)+2000.1.20 (R)
KOMPSAT – 1 Image
8
KOMPSAT - 1
EOC Image
9
Korean peninsula Observation of Yellow Sand
KOMPSAT - 1
10
• Development Outline– Period : Dec. ‘99 ~ Dec. ‘06– Indigenous Development by KARI
with the Technical Support from Astrium– Launch : July 28, 2006
• Payload : MSC(Multi-Spectral Camera)– Resolution : 1m panchromatic,
4m color (4 channels)– Swath: 15 km– Joint development by KARI & ELOP
• Mission– Cartography of Korean peninsula
• Orbit : 685km Sun-synchronous, 10:50 LTAN• Mission life-time: 3 years• Configuration
– BUS Diameter 1.85m, Height 2.6m– Weight, Power: 800kg, 1000W
KOMPSAT-2 (Korea Multi-Purpose Satellite-2)
11
KOMPSAT-2 Satellite ConfigurationMSC
Star Tracker
S-Band AntennaX-Band Antenna
RWA
RDU
Propellant Tank Solar Array
PMU
OBC
12
KOMPSAT-2 Components Koreanization
Battery RadiatorMLI
Propulsion Assy Dual ThrusterRDU VDE
FSSA CSSA
S-bandTransponder
OBC
Payload Module Equipment Module
AdapterPropulsion Module
PCU ECU
DDC SAR
Doowon (Thermal)
Hanwha (Propulsion)
Daewoo (Control)
KAI (Telemetry)Korean Air (Structure)
KAI (Power)
MLI : Multi-Layer Insulator PCU : Power Control Unit ECU : EPS Control Unit DDC : Deployment Device Controller SAR : Solar Array Regulator VDE : Valve Drive ElectronicsRDU : Remote Drive Unit FSSA : Fine Sun Sensor Ass’y KAI : Korea Aerospace Industries
13
KOMPSAT-2: Space Segment
• Orbit– Sun-Synchronous Orbit– 685 km mean altitude
• Satellite Main Characteristics– Mass: 800 kg, Power: 1 kW, Size: Height: 2.80 m, Diameter: 2.00m– Steerable Solar Array– Storage Capacity: 96 Gbit at BOL– 320 Mbps X-band down-link capability– 24 hours on-board operational autonomy– Three axis stabilized– Pointing Accuracy: 0.05 deg per axis– High GPSR and star tracker accuracy– Processor: 3x 80386 CPU, + Math Coprocessor– 3 years lifetime
14
Environmental Tests
Launch Environmental Test Orbit Environmental Test
EMC Test Acoustic Test Separation Shock Test
15
Rockot Launch from Plesetsk Cosmodrome, Russia
28 July 2006
16
KOMPSAT-2 Image
• Cape Town Port
17
KOMPSAT-2 Image
• 3-D image
18
KOMPSAT-2 Image
• Land Reclamation Project
Breakwater
19
National Space Development Plan (2005. 5)
2009(start)CBMS
1999KITSAT-3
2003STSAT-1
2006KOMPSAT-2
2008COMS
2009KOMPSAT-3
1999KOMPSAT-1
2006(start)KOMPSAT-3A
2010(start)KOMPSAT-6
2008KOMPSAT-5
2010(start)KOMPSAT-7
2007STSAT-2
2010STSAT-3
2007 KSLV-1
2015KSLV-2
20
III. Developing Satellites in KARI
• KOMPSAT-3
• KOMPSAT-5
21
• Development Outline– Period : Jul. 2004 ~ Nov. 2009– Indigenous Development by KARI
• Payload : AEISS(Advanced Earth Imaging System)– Development by KARI with the Technical
Support from EADS Astrium
• Mission– Cartography of Korean peninsula
• Orbit : 685km Sun-synchronous
• Mission life-time: 4 years
• Configuration– Size: Diameter 1,981mm, Height 3,346mm – Weight, Power : 900kg, 1200W
KOMPSAT-3
22
KOMPSAT-3: Space Segment
• Orbit– Sun-Synchronous Orbit– 685 km mean altitude
• Satellite Main Characteristics– Mass: 900 kg, Size: Height: 3.4 m, Diameter: 2.0m– Fixed Solar Array– Storage Capacity: 384 Gbit at EOL– 600 Mbps X-band down-link capability– 24 hours on-board operational autonomy– Three axis stabilized– High Agility– High GPSR and star tracker accuracy– Processor: ERC32– 4 years lifetime
23
Image Comparison
KOMPSAT-1(6.6m Res.) KOMPSAT-2(1m Res.) KOMPSAT-3
24
• Development Outline– Period : June 2005 ~ June 2009– Indigenous Development by KARI
• Payload : SAR(Synthetic Aperture Radar)– Imaging modes: Stripmap Mode, Scan,
Spotlight– Co-Development by KARI & Alenia
• Mission– Cartography of Korean peninsula
• Orbit : 550km Sun-synchronous Dawn-Dusk orbit
• Mission life-time: 5 years
• Configuration– Size: Diameter 2,370mm, Height 4,000mm – Weight, Power 1,280kg, 1400W
KOMPSAT-5
25
KOMPSAT-5: Space Segment
• Orbit– Sun-Synchronous Dawn-Dusk Frozen Orbit– 550 km mean altitude and 97.6 deg inclination
• Satellite Main Characteristics– Mass: 1280 kg, Size: Height: 4.00 m, Diameter: 2.57m– Steerable Solar Array– Storage Capacity: 256 Gbit at EOL– 300 Mbps X-band down-link capability– 24 hours on-board operational autonomy– Three axis stabilized– Right and Left Looking– High GPSR and star tracker accuracy– 5 years lifetime
26
Hanger at Kirtland AFB, Albuquerque, New Mexico(Resolution 1m)
Lake Bridge
X-Band Synthetic Aperture Radar Imagery
27