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Mission type Earth Observation
Remote Sensing
Operator ISRO
Mission duration 12 years, 4 months
Spacecraft properties
Bus I-1K
Manufacturer ISRO
Launch mass 975 kilograms (2,150 lb)
Power 600 watts
Start of mission
Launch date August 29, 1991 (1991-08-29)
Rocket Vostok-2M
Launch site Baikonur 31/6
Orbital parameters
Reference system Geocentric
Regime Low Earth

IRS-1B was a successor to the remote sensing mission IRS-1A, both undertaken by the Indian Space Research Organisation. It was an operational and experimental mission to develop indigenous expertise in satellite imagery.[1]


IRS-1B was the first remote sensing mission undertaken by ISRO using imagery generated by remote sensing technology for land-based applications. The long term objective of the mission was to develop the indigenous capability in the field of remote sensing.[2]


IRS-1B carried 3 solid state Linear Imaging Self-Scanning System cameras:

  • LISS-1 (72.5 meter each band ground resolution)
  • LlSS-2A & 2B (36.25 meter each band ground resolution)[3]

Mission Result[edit]

IRS-1B successfully completed its mission after operating for 12 years and 4 months in December 2003.[1]

See also[edit]


  1. ^ a b "IRS-1B". Indian Space Research Organisation. Indian Space Research Organisation. 2008. Retrieved 3 November 2013. 
  2. ^ "Indian Remote Sensing Satellite-1A". CEOS International Directory Network (IDN). Retrieved April 8, 2013. 
  3. ^ "IRS (Indian Remote Sensing Satellites) - Overview and early LEO Program of ISRO". Retrieved April 8, 2013. 

External links[edit]