| Names | TUBSAT-C TUBSAT  | 
|---|---|
| Mission type | Experimental | 
| Operator | TUB | 
| COSPAR ID | 1999-029C | 
| SATCAT no. | 25758 | 
| Range | 713 kilometres (443 mi) | 
| Apogee | 732 kilometres (455 mi) | 
| Spacecraft properties | |
| Spacecraft | DLR-Tubsat | 
| Manufacturer | TUB & DLR | 
| Launch mass | 45 kg (99 lb) | 
| Dimensions | 32 x 32 x 32 cm | 
| Power | 120 W | 
| Start of mission | |
| Launch date | 06:22, May 26, 1999 (UTC) | 
| Rocket | PSLV-C2 | 
| Launch site | Sriharikota Launching Range | 
| Contractor | ISRO | 
| End of mission | |
| Deactivated | Not known | 
| Orbital parameters | |
| Reference system | Sun-synchronous orbit | 
| Regime | Low Earth orbit | 
| Inclination | 98.36° | 
| Period | 99.24 minutes | 
DLR-Tubsat (a.k.a. TUBSAT) was a German remote sensing microsatellite, developed in a joint venture between Technical University of Berlin (TUB) and German Aerospace Center (DLR). TUB was responsible for the satellite bus and DLR was responsible for the payload.[1] The satellite was launched into orbit on 26 May 1999, on the fifth mission of the PSLV program PSLV-C2. The launch took place in the Sriharikota Launching Range.[2][3] The satellite had an expected life of one year.[4][5][6]
Mission objectives
The prime objective of DLR-Tubsat was to test the attitude control system (S/C attitude recovery from hibernation). The secondary objective of the mission was to test a TV camera system for disaster monitoring with the goal of the introduction of an interactive Earth observation concept, where the target is not identified in advance, a search action may be involved, or a particular target region has to be followed visually from orbit.[1][7][4]
Specifications
- Dimension: 32 x 32 x 32 cm
 - Launch mass: 45 kg (99 lb)
 - Solar panel: Four
 - Batteries: Four NiH2
 - Video camera: Three CCD
- 16 mm wide-angle camera with black-and-white chip
 - 50 mm standard-angle camera with color CCD chip
 - 1000 mm telephoto lens camera with black-and-white chip
 
 - Attitude control system: Three wheel / gyro pairs
 - Reaction wheels: Three
 - Laser gyro: Three
 - VHF / UHF TT & C system
 - S band transmitter and antenna
 
See also
References
- 1 2 3 "TUBSAT". eoportal.org. Retrieved 9 Jul 2016.
 - ↑ "DLR-Tubsat (COSPAR ID: 1999-029C)". NASA. Retrieved 9 Jul 2016.
 - ↑ "PSLV-C2". Indian Space Research Organisation. Archived from the original on 2 April 2016. Retrieved 9 Jul 2016.
 - 1 2 3 "Flight Experiences With DLR-Tubsat" (PDF). dlr.de. Retrieved 9 Jul 2016.
 - ↑ Steckling, M.; Renner, U.; Röser, H.-P. (1996). "DLR-TUBSAT, qualification of high precision attitude control in orbit". Acta Astronautica. 39 (9–12): 951. Bibcode:1996AcAau..39..951S. doi:10.1016/S0094-5765(97)00081-7.
 - ↑ "DLR-TUBSAT: a microsatellite for interactive Earth observation". Retrieved 9 Jul 2016.
 - ↑ "DLR-Tubsat". skyrocket.de. Retrieved 9 Jul 2016.