In Today’s News:
- PSLV C50/CMS01 satellite launched.
1. PSLV C50/CMS01 satellite launched
India’s communication satellite CMS-01 was successfully launched by PSLV-C50 on December 17, 2020, from the Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota. PSLV-C50 is the 52nd flight of PSLV and the 22nd flight of PSLV in ‘XL’ configuration (with 6 strap-on motors).
Prelims GS – Science & Technology(Space Technology)
(Note: Latest space advancements are important for both Prelims and Mains)
- CMS-01 is a communication satellite envisaged for providing services in the Extended-C Band of the frequency spectrum.
- The Extended-C Band coverage will include the Indian mainland, Andaman-Nicobar & Lakshadweep Islands.
- CMS-01 is the 42nd Communication Satellite of India.
- Polar Satellite Launch Vehicle (PSLV) is the third generation launch vehicle of India.
- It is the first Indian launch vehicle to be equipped with liquid stages.
- The PSLV vehicle successfully launched two spacecraft – Chandrayaan-1 in 2008 and Mars Orbiter Spacecraft in 2013 – that later traveled to Moon and Mars respectively.
- PSLV earned its title ‘the Workhorse of ISRO’ through consistently delivering various satellites to Low Earth Orbits, particularly the IRS series of satellites.
- It can take up to 1,750 kg of payload to Sun-Synchronous Polar Orbits of 600 km altitude.
- Due to its unmatched reliability, PSLV has also been used to launch various satellites into Geosynchronous and Geostationary orbits, like satellites from the IRNSS constellation.
- PSLV uses 6 solid rocket strap-on motors to augment the thrust provided by the first stage in its PSLV-G and PSLV-XL variants.
- First Stage:-
- PSLV uses the S139 solid rocket motor that is augmented by 6 solid strap-on boosters.
- Second Stage:-
- PSLV uses an Earth storable liquid rocket engine for its second stage, known as the Vikas engine, developed by Liquid Propulsion Systems Centre.
- Third stage:-
- The third stage of PSLV is a solid rocket motor that provides the upper stages high thrust after the atmospheric phase of the launch.
- Fourth stage:-
- The PS4 is the uppermost stage of PSLV, comprising of two Earth storable liquid engines.
Click here to know more about PSLV on the ISRO website.
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