 Name:Oceansat(IRS-P4) LaunchDate:26.05.1999 IRS-P4 (OCEANSAT) is the first satellite primarily built for Ocean applications, weighing 1050 kg placed in a Polar Sun Synchronous orbit of 720 km, launched by PSLV-C2 from SHAR Centre, Sriharikota on May 26, 1999. This satellite carries Ocean Colour Monitor (OCM) and a Multi - frequency Scanning Microwave Radiometer (MSMR) for oceanographic studies. IRS-P4 thus vastly augment the IRS satellite system of ISRO comprising four satellites, IRS-1B, IRS-1C, IRS-P3 and IRS-1D and extend remote sensing applications to several newer areas. Mission completed on August 8, 2010 after serving for 11 years and 2 months. | ||
| Launch date | May 26, 1999 |
| Launch site | SHAR, Sriharikota |
| Launch vehicle | PSLV - C2 |
| Orbit | Polar Sun Synchronous |
| Altitude | 720 km |
| Inclination | 98.28 deg |
| Period | 99.31 min |
| Local time of Eq. crossing | 12 noon |
| Repetitivity cycle | 2 days |
| Size | 2.8m x 1.98m x 2.57m |
| Mass at lift off | 1050 kg |
| Length when fully deployed | 11.67 m |
| Attitude and Orbit Control | 3-axis body-stabilised using Reaction Wheels, Magnetic Torquers and Hydrazine Thrusters |
| Power | 9.6 Sq.m Solar Array generating 750w Two 21 Ah Ni-Cd Battries |
| Mission Completed On | August 8, 2010 |
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