IRS-1C and IRS-1D Mission Background

The Indian Remote Sensing (IRS) satellites are the mainstay of the Indian Department of Space's National Natural Resources Management System. IRS-1C and IRS-1D were second generation remote sensing operational satellites developed by ISRO to carry three distinct and mutually complementary imaging payloads. The combination of payloads enhanced the capabilities of IRS-1C/1D as compared to the predecessor IRS-1A/1B in terms of spatial resolution, provision of an additional spectral band, ability to acquire stereoscopic images and inclusion of a wide field sensor for improved temporal resolution.

  IRS-1C IRS-1D
Operators ISRO
Launch Date 28 December 1995 29 September 1997
Mission Status Ended 21 September 2007 Ended January 2010
Orbit Height 817 km
Orbit Type Polar sun-synchronous
Local time at ascending node 10:30
Revisit Time 24 days
Onboard Sensors provided under TPM PAN, LISS-III, WiFS
 
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