DLR-TUBSAT was launched on May 26, 1998 on a Indian PSLV-C2 rocket as a secondary payload into a sun synchronous orbit (altitude 726km, inclination 98.38deg) together with KITSAT-3. The primary payload was the IRS-P4 satellite. The development of the DLR-TUBSAT was a joint project of TU Berlin and the German Aerospace Center (DLR). The satellite was designed for interactive earth observation where the target is not identified in advance and a search action is involved or the selected target has to be visually followed.
Small Satellites: Past, Present, and Future
TUBSAT: The Technical University of Berlin Satellite Program
Matthias Buhl
The Aerospace Press, AIAA, Helvajian & Janson (Editors), 2008 (ISBN: 978-1-884989-22-3)
Interaktive Lageregelung bei Nacht mit dem Mikrosatelliten DLR-TUBSAT
Bleif, Jörn-Hendrik
Dissertation, Fakultat V (Verkehrs- und Maschinensysteme) , Technische Universitat Berlin, 2004
Flight Experiences with DLR-TUBSAT
Stephan Roemer, Udo Renner
Acta Astronautica, Volume 52, Number 9, May 2003, pp. 733-737(5)
Interaktive Lageregelung zur Erdbeobachtung mit Mikrosatelliten am Beispiel DLR-TUBSAT
Stefan Schulz
Dissertation, Fachbereich 10 - Verkehrswesen und Angewandte Mechanik - Technischen Universität Berlin, 2001
DLR-TUBSAT: A Microsatellite for Interactive Earth Observation
Stefan Schulz, Udo Renner
Small Satellite Systems and Services 5th international symposium, La Baule, France 2000