BILSAT-1
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| Mission type | Earth observation |
|---|---|
| Operator | TÜBİTAK Space Technologies Research Institute (TÜBİTAK UZAY) |
| COSPAR ID | 2003-042E |
| SATCAT no. | 27943 |
| Mission duration | 3 years |
| Spacecraft properties | |
| Manufacturer | DMC International Imaging |
| Launch mass | 130 kilograms (290 lb) |
| Start of mission | |
| Launch date | September 27, 2003, 06:12 UTC |
| Rocket | Kosmos-3M |
| Launch site | Plesetsk 132/1 |
| End of mission | |
| Deactivated | August 2006[1] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous |
| Eccentricity | 0.001[2] |
| Perigee altitude | 675 kilometres (419 mi) |
| Apogee altitude | 694 kilometres (431 mi) |
| Inclination | 98.2 degrees |
| Period | 98.5 minutes |
| Epoch | 27 September 2003, 02:12:00 UTC[3] |
BILSAT-1 (formerly just BILSAT) was an Earth observation satellite designed and developed by TÜBİTAK Space Technologies Research Institute (TÜBİTAK UZAY) and produced in Turkey as part of the Disaster Monitoring Constellation (DMC) project in the context of a show-how program led by DMC International Imaging of Surrey Satellite Technology (SSTL).[4][5][6]
BILSAT-1 was launched from Plesetsk Cosmodrome Site 132/1, Arkhangelsk Oblast in Russia by a Kosmos-3M space launch vehicle on September 27, 2003, at 06:12 UTC in a multiple-satellite payload launch along with six other satellites, namely Mozhayets-4 and Larets of Russia, NigeriaSat of Nigeria, UK-DMC from the United Kingdom, South Korean STSAT-1 and Germany's Rubin 4-DS. It was placed in a polar, circular, Sun-synchronous geocentric orbit at an altitude of 686 km (426 mi) with orbital parameters as period 98.5 min, apogee 694 km (431 mi), perigee 675 km (419 mi) and inclination 98.2°.[2][4][5][7]
