IRS P4 (OceanSat-1)

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Satellite characteristics

Launch Date - End 26 mei 1999 - 8 augustus 2010

Status Decommissioned

Orbit type Sun-synchronous near-circular orbit

Altitude 720

Orbit inclination 98.28

Equatorial crossing time 12:00:00

Orbit period 99.31

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 MSMR (Multifrequency Scanning Microwave Radiometer)
Sensor short description
Sensor type Imaging microwave radar
Resolution class Very Low (> 1 km)
Swath width (at nadir) 1360 km
Sensor name OCM (Ocean Color Monitor)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class Low (300 m - 1 km)
Swath width (at nadir) 1440 km
Max look angle 20°