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Mission typeExperimental
COSPAR ID1999-029C
SATCAT no.25758Edit this on Wikidata
Range713 kilometres (443 mi)
Apogee732 kilometres (455 mi)
Spacecraft properties
ManufacturerTUB & DLR
Launch mass45 kg (99 lb)
Dimensions32 x 32 x 32 cm
Power120 W
Start of mission
Launch date06:22, May 26, 1999 (UTC) (1999-05-26T06:22Z)
Launch siteSriharikota Launching Range
End of mission
DeactivatedNot known
Orbital parameters
Reference systemSun-synchronous orbit
RegimeLow Earth orbit
Period99.24 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][7]

Mission objectives[edit]

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][8][5]



See also[edit]


  1. ^ a b c "TUBSAT". eoportal.org. Retrieved 9 Jul 2016.
  2. ^ "DLR-Tubsat (COSPAR ID: 1999-029C)". NASA. Retrieved 9 Jul 2016.
  3. ^ "PSLV-C2". Indian Space Research Organisation. Retrieved 9 Jul 2016.
  4. ^ "DLR Tubsat - Low Earth Orbit Satellite". findthedata.com. Retrieved 9 Jul 2016.[permanent dead link]
  5. ^ a b c "Flight Experiences With DLR-Tubsat" (PDF). dlr.de. Retrieved 9 Jul 2016.
  6. ^ 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.
  7. ^ "DLR-TUBSAT: a microsatellite for interactive Earth observation". researchgate.net. Retrieved 9 Jul 2016.
  8. ^ "DLR-Tubsat". skyrocket.de. Retrieved 9 Jul 2016.