STSAT-2A
| STSAT-2A | |
|---|---|
| Type: | Technology testing |
| Country: |
 South Korea
|
| Operator: | KARI |
| Mission dates | |
| Dimensions: | about 100 kg |
| Size: | 65 × 62 × 93 cm |
| Begin: | August 19, 2009 |
| Starting place: | Naro Space Center |
| Launcher: | KSLV |
| Orbit data | |
| Orbit inclination : | 80 ° |
| Apogee height : | 300 km |
| Perigee height : | 1500 km |
| Eccentricity : | 0.082 |
STSAT-2A (Science and Technology Satellite-2) is the name of a satellite owned by the Korea Aerospace Research Institute (KARI), the national space agency of South Korea .
He was born on 25 August 2009 with a KSLV - carrier rocket from the Naro Space Center in the district Goheung started. However, the launch is viewed as only partially successful because the satellite only separated from the rocket after 360 km instead of the intended 302 km altitude and so flies in an orbit that is too high. The satellite, which weighs around 100 kg, contains a Lyman Alpha Imaging Solar Telescope (LIST) and a satellite laser reflector (SLR) with nine reflectors. It was developed by the Satellite Technology Research Center (SaTReC) and was intended to be used for solar research , surveying the orbit and as a technology demonstrator. The satellite is three-axis stabilized, with the stabilization taking place via analog and digital sun sensors and GPS receivers . The energy is supplied via solar cell boom with GaInP2 / GaAs / Ge solar cells (triple junction) that deliver around 160 watts, the data is transmitted in S and X bands . Life expectancy is given as over two years.
The 106 kg predecessor STSAT-1 (also called Kaistsat 4 ) was brought into orbit on September 27, 2003 by a rocket of the type Kosmos 3M. The successor STSAT-2B was due to start on June 9, 2010, but had to be postponed at short notice. During the second launch attempt on June 10, 2010, the launcher exploded 137 seconds after launch, destroying the satellite. A third specimen, called the STSAT-2C , was then placed into orbit on January 30, 2013. This was South Korea's first successful orbital launch.
Web links
- SSTSAT-2 site of NASA
Individual evidence
- ↑ S. Korea's first space rocket launch fails to send satellite into orbit. Yonhap News Agency, August 25, 2009, accessed April 3, 2010 .
- ↑ STSat-2 (Science and Technology Satellite-2) on: eoportal.org. Retrieved April 25, 2013.
- ↑ Kaistsat 4 in the NSSDCA Master Catalog , accessed April 3, 2010.
- ^ Launch of Naro Space Rocket Postponed. KBS, June 9, 2010, accessed June 9, 2010 .
- ↑ Naro launcher apparently crashed , in: KBS of June 10, 2010.