STSAT-2
Jump to: Mission Objectives, Mission Instrumentation, Mission Parameters, Additional Information
Mission Photos:
Courtesy of KAIST
Mission Objectives:
The objectives of STSAT-2 mission consist of three missions, which are the domestic development of a low earth orbit 100kg satellite which will be launched by KSLV-1(Korea Space Launch Vehicle-1) from the domestic space center (NARO Space Center),the development of advanced technology for small spacecraft, and the development and operation of world-class space science payloads. STSAT-2 have two payloads: the main payload, DREAM (Dual-channel Radiometer for Earth and Atmosphere Monitoring) and the secondary payload, LRA (Laser Retroreflector Array). The DREAM mission objectives are to acquire brightness temperature of the earth at 23.8 GHz and 37 GHz, and to acquire physical parameters such as cold liquid water and water vapor after post-processing. The mission objective of spacecraft techologies is to develop a thermally, mechanically, electrically stable and radial resistant spacecraft system having high-precision attitude determination and control capability in a high eccentric ellipsoidal orbit.
Unfortunately, the STSAT-2A satellite was lost due to a launch failure on August 25, 2009. The launch of STSAT-2B occurred on June 10, 2010 at 08:01 GMT; the satellite was lost due to a rocket failure.
For spacecraft technology experiments, STSAT-2 has the following instrumentation onboard:
- Pulsed Plasma Thruster (PPT)
- Dual-Head Star Tracker (DHST)
- Fine Digital Sun Sensor (FDSS)
- Compact on-board computer
- High-speed data transmission (10Mbps)
Mission Parameters:
| STSAT-2A | STSAT-2B | |
| Sponsor: | Mest, KAIST | MEST, KAIST |
| Expected Life: | ||
| Primary Applications: | Spacecraft development | Spacecraft development |
| Primary SLR Applications: | Precision orbit determination | Precision orbit determination |
| COSPAR ID: | TBD | TBD |
| SIC Code: | 3801 | 3802 |
| Satellite Catalog (NORAD) Number: | TBD | TBD |
| Launch Date: | 10-Aug-2009 | Apr-2010 |
| RRA Diameter: | 20 cm | 20 cm |
| RRA Shape: | hemisphere | hemisphere |
| Reflectors: | 9 corner cubes | 9 corner cubes |
| Orbit: | Elliptical | Elliptical |
| Inclination: | 80 degrees | 80 degrees |
| Eccentricity: | 0.082 | 0.082 |
| Perigee: | 300 km | 300 km |
| Apogee: | 1500 km | 1500 km |
| Weight: | 100 kg | 100 kg |
Additional Information:
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