Tubsat C

Germany

Spacecraft n°:

Germany spacecraft n°: 32

Also called DLR-TUBSAT

Launch data:

Designation	25757 / 99029B
Launch date	26 May 1999 - 6:22 UT
Launch site	Sriharikota
Launch vehicle:	PSLV-C2(#5)
Mission	Government: Remote Sensing
Sun-Synchronous LEO Earth orbit:
Perigee / Apogee	713 x 732 km
Eccentricity	1.34E-03
Inclination	98.2 deg
Period	99.24 min

1e Indian launch to carry commercial sat. into orbit
Launched together with IRS-P4 and Kitsat-3
High resolution earth observation tasks. This is done in a live TV mode with a 3-head camera system with different focal lengths(16, 50 & 1000 mm), resulting in a resolution of 370 meter down to six meter per pixel.

Specifications:

Prime contractor	Technical University of Berlin
Platform
Operator	Deutsches Zentrum für Luft- und Raumfahrt
Mass at launch	45 kg
Massin orbit
Dimension	32 cm cube
Solar array
Stabilization
DC power	120 W
Design lifetime	1 yrs - still active

Description:

TUBSAT was a German remote sensing microsatellite. The payload consisted of a triple-lens camera system: a wide angle 16 mm lens with a black and white CCD chip, a standard angle 50 mm lens with color CCD chip, and a 1,000 mm telephoto lens with a black and white CCD chip.
The satellite has a cubic shape of 32 cm in dimension. It is mainly used for high resolution earth observation tasks. This is done in a live TV mode with a three head camera system with different focal lengths. The spatial resolutions of the Earth pictures are respectively 370 m, 120 m, and 6 m. The pictures can be received with a standard satellite dish with a minimum of 3 m in diameter. Users transmit the coordinates of a point on the Earth and the satellite computes the needed attitude control actions to track this point during the crossing.
S-band downlink
Transmits image of its own view; not currently used for scientific mission but operational.

Ref: #7, #14, #27, #78a, #226, #228 - update: 20.02.12