IRS-1C

IRS-1C was the fourth remote sensing Indian satellite built, and designed by Indian Space Research Organization (ISRO). IRS-1C is first second-generation operational Remote Sensing Satellite. The satellite carries payloads with enhanced capabilities like better spatial resolution additional spectral bands, improved repetitivity and augment the remote sensing capability of the existing IRS-1A and IRS-1B.

IRS-1C
Mission typeEarth observation
Remote sensing
OperatorISRO
COSPAR ID1995-072A
SATCAT no.23751
Websitehttps://www.isro.gov.in/Spacecraft/irs-1c
Mission duration11 years and 8 months
Spacecraft properties
BusIRS-1B
ManufacturerISRO
Launch mass1250 kg
Dimensions1.93 x 1.7 x 1.65 metres
Power809 watts
Start of mission
Launch date28 December 1995
06:45:18 UTC
RocketMolniya-M / Blok 2BL
s/n V15000-040
Launch siteBaikonur, Site 31/6
ContractorCentral Specialized Design Bureau (TsSKB)
End of mission
Last contact21 September 2007
Orbital parameters
Reference systemGeocentric [1]
RegimeSun-synchronous
Perigee altitude816 km
Apogee altitude818 km
Inclination98.69°
Period101.2 minutes
Epoch28 December 1995
 

Objective

The primary objective of IRS-1C was to provide systematic and repetitive acquisition of data of the Earth's surface under nearly constant illumination conditions.[2]

Spacecraft

IRS 1-C was the fourth of the Indian natural resource imaging satellites and was launched by a Molniya-M rocket from the Baykonur Cosmodrome. The 1,250 kilograms (2,760 lb) spacecraft carried three instruments. Images from regions other than India will be downlinked and distributed through a commercial entity in the United States.

IRS-1C used S-band for broadcasting and X-band for uplinking of data. The satellite was equipped with onboard tape recorder with storage capacity of 62 Gbits.[3]

Payloads

IRS-1C was equipped with three sensors:

  • Panchromatic (PAN) camera of 6 metres (20 ft) resolution
  • Linear Imaging Self Scanner (LISS-3) of 23.6 metres (77 ft) resolution
  • Wide Field Sensor (WiFS) of 189 metres (620 ft) resolution [4]

Mission

The images was marketed through a private company in the United States.[4] The data transmitted from the satellite was gathered from National Remote Sensing Centre, Hyderabad and EOSAT, a partnership of Hughes Aircraft and RCA.[5]

IRS-1C completed its services on 21 September 2007 after serving for 11 years and 8 months.[3]

See also

References
  1. "IRS-1C: Trajectory 1995-072A". nssdc.gsfc.nasa.gov. NASA. 17 April 2020. Retrieved 4 May 2020. This article incorporates text from this source, which is in the public domain.
  2. "IRS-1C/1D" (PDF). National University of Argentina. p. 3. Retrieved 8 March 2013.
  3. "IRS-1C". Indian Space Research Organisation. Retrieved 4 May 2020.
  4. "IRS-1C: Display 1995-072A". nssdc.gsfc.nasa.gov. NASA. 17 April 2020. Retrieved 4 May 2020. This article incorporates text from this source, which is in the public domain.
  5. "IRS (Indian Remote Sensing Programme)". Federation of American Scientists. Retrieved 8 March 2013.
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