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Launch Date
17.03.1988

IRS-1A, the first of the series of indigenous state-of-art remote sensing satellites, was successfully launched into a polar sun-synchronous orbit on March 17, 1988 from the Soviet Cosmodrome at Baikonur. IRS-1A carries two cameras, LISS-I and LISS-II with resolutions of 73 metres and 36.25 metres respectively with a swath width of about 140 km during each pass over the country.

Mission completed during July 1996 after serving for 8 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:
LISS-1(72.5 metre resolution),
LISS-2A and
LISS-2B (36.25 metre resolution)
Launch date March 17, 1988
Launch site Baikanur Cosmodrome Kazakhstan
Launch vehicle Vostok
Orbit 904 km Polar Sun-synchronous
Inclination 99.08o
Repetivity 22 days (307 orbits)
Local time 10.30 a.m. (descending node)
Mission completed during July 1996
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