IRS-1A

IRS-1A
NamesIndian Remote Sensing satellite-1A
Mission typeEarth observation
OperatorISRO
COSPAR ID1988-021A Edit this at Wikidata
SATCAT no.18960
Websitehttps://www.isro.gov.in/
Mission duration3 years (planned)
4 years (achieved)
Spacecraft properties
SpacecraftIRS-1A
BusIRS-1
ManufacturerIndian Space Research Organization
Launch mass975 kg (2,150 lb)
Dry mass895 kg (1,973 lb)
Dimensions1.56 m x 1.66 m x 1.10 m
Power600 watts
Start of mission
Launch date17 March 1988, 06:43:00 UTC
RocketVostok-2M s/n L15000-79
Launch siteBaikonur Cosmodrome, Site 31
ContractorOKB-1
Entered serviceJune 1988 [1]
End of mission
Deactivated1 July 1992 [1]
Orbital parameters
Reference systemGeocentric orbit[2]
RegimeSun-synchronous orbit
Perigee altitude863 km (536 mi)
Apogee altitude917 km (570 mi)
Inclination99.01°
Period102.7 minutes
Instruments
Linear Imaging Self-Scanning Sensor-1 (LISS-1)
Linear Imaging Self-Scanning Sensor-2 (LISS-2)
IRS-1B →

IRS-1A, Indian Remote Sensing satellite-1A, the first of the series of indigenous state-of-art remote sensing satellites, was successfully launched into a polar Sun-synchronous orbit on 17 March 1988 from the Soviet Cosmodrome at Baikonur. IRS-1A carries two sensors, LISS-1 and LISS-2, with resolutions of 72 m (236 ft) and 36 m (118 ft) respectively with a swath width of about 140 km (87 mi) during each pass over the country. Undertaken by the Indian Space Research Organisation (ISRO). It was a part-operational, part-experimental mission to develop Indian expertise in satellite imagery.

  1. ^ a b Cite error: The named reference WMO was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Trajectory was invoked but never defined (see the help page).