Scientists from the Indian Space Research Organization (ISRO) on Friday began a countdown for the launch of the Earth observation satellite – Oceansat – and eight other customer satellites on a PSLV-C54 rocket from Sriharikota spaceport on Saturday.
The countdown to 25:30 for the 56th flight of the Polar Satellite Launch Vehicle (PSLV), in its extended version (PSLV-XL), started today at 10:26 for the launch scheduled for 11:56 on Saturday from the first launch pad at Satish Dhawan Space Centre, Sriharikota, 115 km from Chennai.
The rocket’s primary payload is an Oceansat that would be separated into orbit-1, while the eight other nanosatellites would be placed in different orbits based on customer requirements (in the sun-synchronous polar orbits).
Including the primary payload, nine satellites would ride on the 44.4 meter high PSLV-C54, which has a take-off mass of 321 tons. It is also the 24th flight of the PSLV-XL version.
The mission would be one of the longest undertaken by the ISRO scientists who would deploy the rocket to change orbit using two-orbit change thrusters (OCTs) used in the PSLV-C54 launch vehicle. Separation of the Earth observation satellite is expected to take place in runway-1, while passenger loads will be separated in runway-2.
The Earth observation satellite is expected to be deployed after reaching an altitude of about 742 km, about 20 minutes after launch.
After the primary satellite separation, the vehicle would be lowered to reach an altitude of 516 km for the placement of the first passenger satellite. The final cargo separation is expected to occur at an altitude of 528 km, ISRO said.
The Earth Observation Satellite-6 is the third generation satellite in the Oceansat series. This is to provide Oceansat-2 spacecraft continuity services with enhanced payload specifications and application areas. The purpose of the mission is to ensure data continuity of ocean color and wind vector data to support operational applications.
The customer’s payloads include ISRO Nano Satellite-2 for Bhutan (INS-2B), which would have two payloads, namely NanoMx and APRS-Digipeater. NanoMx is a multispectral optical imaging payload developed by Space Applications Center while APRS-Digipeater payload is jointly developed by Department of Information Technology and Telecom, Bhutan, and UR Rao Satellite Center, Bengaluru.
The ‘Anand’ satellite developed by Pixxel is a technology demonstrator to demonstrate the capabilities and commercial applications of a miniature Earth observation camera for observation using a microsatellite in low Earth orbit.
The ‘Thybolt’ (two satellites) is from another space start-up Dhruva Space, while Astrocast is a technological demonstration satellite for the Internet of Things as the payload of Spaceflight, United States of America.
(Except for the headline, this story has not been edited by NewsMadura staff and is being published from a syndicated feed.)
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