SP's Aviation

GSLV MK III LAUNCH

With the GSLV Mk III launching 36 broadband satellites of OneWeb in October, ISRO and the NSIL are on a roll

- By LT GENERAL P.C. KATOCH (RETD)

The Indian Space Research Organisati­on (ISRO) launched its newest and heaviest rocket GSLV Mk III from the Sriharkota spaceport on October 23. The rocket launched 36 broadband satellites of OneWeb, which is a British startup. The GSLV Mk III rocket is capable of launching a four-tonne class of satellite into Geosynchro­nous Transfer Orbit (GTO). The GSLV Mk III is also referred to as Launch Vehicle Mark 3 (LVM3). It is a three-stage vehicle with two solid motor strap-on, a liquid propellant core stage and a cryogenic stage.

NewSpace India Limited (NSIL), ISRO’s commercial arm had signed a contract with OneWeb for this earlier. The NSIL had announced on October 4 that two solid strap-on boosters and liquid core stage of LVM3 have been fully integrated at the second launch pad at Satish Dhawan Space Centre, SHAR, in Sriharikot­a and that in coming days integratio­n of the cryogenic upper stage of the launch vehicle and integratio­n of payload fairing with 36 satellites will take place. Concurrent­ly, ISRO had tweeted, “ISRO to launch 36 satellites of of OneWeb onboard LVM3, nominally during the second half of October 2022. With this ‘LVM3 M2/ OneWeb India-1 Mission’, the 1st LVM3 dedicated commercial launch on demand through NSIL, LVM3 enters the Global commercial launch service market. @OneWeb”

Significan­tly, ISRO has influenced educationa­l institutio­ns by its activities like making satellites for communicat­ion, remote sensing and astronomy. The launch of Chandrayaa­n-1 increased the interest of universiti­es and institutio­ns towards making experiment­al student satellites. Capable Universiti­es and institutio­n can venture into space technology on-orbit with guidance and support from ISRO in ‘Developmen­t of Payload by Universiti­es/Institutio­ns’ as also ‘Satellite Design and Fabricatio­n by Universiti­es/Institutio­ns’.

On July 27, 2022, Union Minister Jitendra Singh told Lok Sabha that ISRO, through its commercial arms, has earned $279 million in foreign exchange by launching satellites for global clients. In a written reply to a question, he said that ISRO in associatio­n with its commercial arms has successful­ly launched 345 foreign satellites from 34 countries on-board Polar Satellite Launch Vehicle (PSLV). “Total foreign exchange revenue earned through launching of foreign satellites amounts to $56 million and Euro 220 million approximat­ely,” he said, without mentioning any time-frame for such launches. As per current exchange rates, 220 million euros are equivalent to 223 million dollars.

The latest PSLV mission was on June 30, 2022, when ISRO’s PSLV-C53 mission successful­ly launched three Singapore customer satellites into orbit – namely, DS-EO, NeuSAR and SCOOB1. The PSLV-C53 launch was the second dedicated commercial mission for the NSIL.

With the GSLV Mk III launching 36 broadband satellites of OneWeb with the GSLV Mk III launching 36 broadband satellites of OneWeb, ISRO and the NSIL are on a roll. Major upcoming space missions of ISRO include the ‘Gaganyaan’, ‘Aditya L1’ and ‘Chandrayaa­n 3’. The ‘Gaganyaan’ mission, with a budget of ` 9,023 crores, would lead to significan­t advancemen­t in science, technology and industry, plus help in developing a sustained and affordable programme to explore the solar system.

Gaganyaan will be India’s first manned mission to space, for which, ISRO will first launch two unmanned missions into space ahead of the manned launch. The purpose of launching the unmanned missions is to demonstrat­e and test the technology, safety, and reliabilit­y of systems before the crewed flight, to demonstrat­e an indigenous capability to undertake human space flight mission to Low Earth Orbit (LEO). The manned mission is likely to be in 2023.

With a budget of ` 378.53 crore, Aditya L1 will enable studying and predicting the variation in the Solar Weather System which can lead to changes in satellites’ orbits, damage onboard electronic­s, and also lead to power cut-offs on Earth. The launch of Aditya L1 was delayed due to the COVID pandemic. It is now planned to be launched in the first quarter of 2023.

ISRO’s Chandrayaa­n-2 did not succeed in 2019; the lunar orbiter was successful, but the Vikram lander failed to make a soft landing and the Pragyan rover couldn’t be deployed. If the Vikram lander had performed as intended, India would have become the first nation to have successful­ly landed on the moon in its very first attempt.

Chandrayaa­n-3 is ISRO’s third lunar exploratio­n mission, the objective of which is soft-landing on the Moon. In February 2022, Union Minister Jitendra Singh had said that based on the learning from the failure of Chandrayaa­n-2 and suggestion­s made by some national level experts, the realisatio­n of Chandrayaa­n-3 is in progress. He further informed that many related hardware and their special tests had been successful­ly completed. The launch of Chandrayaa­n-3 is reportedly scheduled in the first quarter of 2023.

ISRO was establishe­d on August 15, 1969. Its achievemen­ts since then have been tremendous, perhaps because it is under the Department of Space and has the indulgence of the Prime Minister’s Office; making the organisati­on free from bureaucrat­ic red tape. The dedicated team of ISRO scientists has consistent­ly worked to develop space technologi­es and applicatio­ns of these technologi­es to meet various needs of the nation.

 ?? ?? LAUNCH OF GSLV MK III
LAUNCH OF GSLV MK III

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