Welcome To ISRO :: Satellites :: Earth Observation Satellite

	Launch Date	29.08.1991
Improved features compared to its predecessor : gyro referencing for better orientation sensing,time tagged commanding (IRS-1A) facility for more flexilibility in camera operation and line count information for better data product generation. Mission completed on December 20, 2003 after serving for 12 years and 4 months.

Mission	Operational Remote Sensing
Weight	975 kg
Onboard power	600 Watts
Communication	S-band, X-band and VHF (commanding only)
Stabilization	Three axis body stabilized (zero momentum) with 4 Reactions Wheels, Magnetic torquers
RCS	Monopropellant Hydrazine based with sixteen 1 Newton thrusters
Payload	Three solid state Push Broom Cameras LlSS-1 (72.5 metre resolution), LlSS-2A and LlSS-2B (36.25 metre resolution)
Launch date	August 29, 1991
Launch site	Baikanur Cosmodrome Kazakhstan
Launch vehicle	Vostok
Orbit	904 km Polar Sun Synchronous
Inclination	99.08^o
Repetivity	22 days
Local time	10.30 a.m. (descending node)
Mission Completed On	December 20, 2003