Launch Vehicle Mark 3 (LVM3 or GSLV Mark 3)

The Indian Space Research Organisation’s (ISRO) heaviest rocket Launch Vehicle Mark 3 (LVM3 or GSLV Mark 3) has successfully orbited 36 satellites of U.K.-based OneWeb.
With this launch, LVM3 has made its entry into the global commercial launch service market.

GSLV MkIII is configured as a three stage vehicle with two solid strap-on motors (S200), one liquid core stage (L110) and a high thrust cryogenic upper stage (C25).
Payload to GTO: 4,000 kg: GSLV Mk III will be capable of placing the 4 tonne class satellites of the GSAT series into Geosynchronous Transfer Orbits.
Payload to LEO (Low Earth Orbit) : 8,000 kg: The cryogenic stage of GSLV Mk III enables it to place heavy payloads into Low Earth Orbits of 600 km altitude.
Cryogenic Upper Stage : powered by CE-20, India’s largest cryogenic engine, designed and developed by the Liquid Propulsion Systems Centre.
Solid Rocket Boosters : GSLV Mk III uses two S200 solid rocket boosters to provide the huge amount of thrust required for lift off. The S200 was developed at Vikram Sarabhai Space Centre.
Core Stage : The L110 liquid stage is powered by two Vikas engines designed and developed at the Liquid Propulsion Systems Centre.

LVM3-M2 is the dedicated commercial satellite mission of NewSpace India Limited (NSIL), a Central Public Sector Enterprise (CPSE) under the Department of Space, Government of India.
This mission is being undertaken as part of the commercial arrangement between NSIL and m/s Network Access Associates Limited (m/s OneWeb Ltd), a U.K. based company.
- OneWeb is a joint venture between India’s Bharti Enterprises and the U.K. government.

OneWeb aims to activate global coverage in 2023, while its connectivity solutions already live in regions north of 50-degrees latitude.
This partnership with NSIL and ISRO demonstrates OneWeb’s commitment to provide connectivity across the length and breadth of India by 2023.
- From Ladakh to Kanyakumari and Gujarat to Arunachal Pradesh, OneWeb will bring secured solutions not only to enterprises but also to towns, villages, municipalities and schools, including the hardest-to-reach areas across the country.

The reason behind changing the name of the vehicle from GSLV to LVM is that the rocket will not deploy the satellites in the geosynchronous orbit alone.
The OneWeb satellites operate in Low Earth orbit (LEO) at an altitude of 1,200 kilometers.
The geosynchronous orbit, on the other hand, is located 35,786 kilometers above Earth’s equator. It is a prograde, low inclination orbit about Earth having a period of 23 hours 56 minutes 4 seconds.
- A spacecraft in geosynchronous orbit appears to remain above Earth at a constant longitude, although it may seem to wander north and south.
The cryogenic stage of the vehicle allows it to place heavy payloads into Low Earth Orbits of 600 km altitude, while it can also place four-tonne class satellites of the GSAT series into Geosynchronous Transfer Orbits.

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