Chennai, April 16: The Indian Space Research Organisation (ISRO) has successfully carried out the fourth and final orbit raising operations of navigation satellite, IRNSS-1I, the space agency has said.
The orbit raising operation took place at 9.05 p.m. on Sunday, the ISRO said.
The achieved perigee height (nearest point to the earth) is 35,462.9 km and apogee height (farthest point to the earth) is 35,737.8 km.
The IRNSS-1I was launched on April 12.
After a flight lasting about 19 minutes, the Polar Satellite Launch Vehicle (PSLV) achieved a Sub Geosynchronous Transfer Orbit with a perigee of 281.5 km and an apogee of 20,730 km inclined at an angle of 19.2 degree to the equator.
At that point, the IRNSS-1I got separated from the rocket.
Following that ISRO carried out four orbit raising operations on April 13 (first and second), April 14 (third operation) and April 15.
However, the ISRO did not provide any information for how many minutes the satellites' onboard motors were fired for raising the orbit.
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ISRO's PSLV-C62 lifts off with earth observation satellite, 14 other payloads
Sriharikota (Andhra Pradesh) (PTI): ISRO's trusted workhorse PSLV lifted off from the spaceport here on Monday, carrying an earth observation satellite along with 14 other commercial payloads for both domestic and overseas customers.
Marking the first launch of the year, the mission is part of the contract secured by NewSpace India Ltd, the commercial arm of ISRO.
The 44.4 metre tall four-stage PSLV-C62 rocket soared from the first launch pad at a prefixed time of 10.18 hours on Monday.
After a journey of 17 minutes, it is expected to place the satellites into Sun Synchronous Orbit at an altitude of about 511 km.
After the separation of all the satellites, scientists would restart the fourth stage (PS4) of the rocket to de-boost and enter a re-entry trajectory for the separation of the last satellite, the Kestrel Initial Technology Demonstrator (KID) capsule.
This process is expected to last over two hours after lift-off.
Both the PS4 stage and the KID capsule would re-enter the Earth's atmosphere and make a splashdown in the South Pacific Ocean, ISRO said.
