IRS-P

The Indian earth observation satellite IRS-P3 (Indian Remote Sensing) was launched into low earth orbit in March 1996. Besides the WiFS (Wide Field Sensor) instrument it carried MOS (Modular Optoelectronic Scanner), an imaging spectrometer for the visible and near-infrared range developed and provided by DLR. It is being used to investigate and monitor the ocean-atmosphere system, particularly in coastal regions.

  
Dimensions
1.18 m × 0.93 m
Total mass
920 kg
Payload
888 kg
Number of instruments
3 (2 for earth observation)
Launcher
 
Launch
March 21, 1996
End of mission
March 2004
  
Semi-major axis
7195 km
Orbit altitude (mean)
817 km
Inclination angle
98.68°
Orbital period
101.3 min
Orbit
polar, sun-synchronous
Overflight time
10:30 am
Orbits per day
14.2
Revisit
5 days