IRS 1B

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Satellite characteristics

Launch Date - End 29 augustus 1991 - 20 december 2003

Status Decommissioned

Orbit type Polar sun-synchronous orbit

Altitude 904

Orbit inclination 99.49

Orbit period 103.2

Satellite family: IRS (Indian Remote Sensing Satellites)

IRS is the integrated LEO (Low Earth Orbit) element of India's NNRMS (National Natural Resources Management System) with the objective to provide a long-term spaceborne operational capability to India for the observation and management of the country's natural resources (applications in agriculture, hydrology, geology, drought and flood monitoring, marine studies, snow studies, and land use).

The intend of the program is to create an environment of new perspectives for the Indian research community as a whole, to stimulate the development of new technologies and applications, and to utilize the Earth resources in more meaningful ways.

Sensor characteristics

Sensor name LISS I (Linear Imaging Self-Scanning Sensor 1)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class Medium (30 - 300 m)
Swath width (at nadir) 148 km
Revisit frequency 27 dagen
Sensor name LISS II (Linear Imaging Self-Scanning Sensor 2)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class Medium (30 - 300 m)
Swath width (at nadir) 74 km