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Wednesday, March 29, 2023

24-hr Countdown begins for LVM3-M2/OneWeb India-1 mission


The 24 hour countdown for the

tomorrow’s morning launch of 36 satellites of the

UK-based One Web using the heaviest rocket Launcher

GSLV-MkIII–rechristened as LVM3-M2–from the spaceport

of Sriharikota, SHAR Range, commenced today morning.

Indian Space Research Organisation (ISRO) sources

said the countdown began at 12.07 a.m. on Saturday


The launch will take place from the Second Launch

Pad at 12.07 A.M. tomorrow.

During the countdown, propellant filling operations

will be carried out in the three-stage vehicle.

This would be an exclusive dedicated commercial

mission by the Indian Space Agency.

ISRO has redesignated the GSLV-MkIII as LVM-3

as the rocket will inject the satellite in the Low

Earth Orbit (LEO) and not in the Geo-Synchronous

Transfer Orbit for which the Geo-Synchronous

Satellite Launch Vehicle (GSLV) has been designed.

About 20 minutes after lift off, the 43.5 m tall 3-stage

vehicle, with a total lift-off mass of 644 tonnes, will

place the satellites into circular LEO of 601 km with

an inclination of 87.4 Deg to the equator.

This mission is the fifth flight of LVM3 and

with this launch, LVM3 is making its entry into

the ‘Global Commercial Launch Service Market’.

ISRO said it is the first multi-satellite mission with

36 OneWeb Satellites to the LEO as the heaviest

payload mass of 5,796 kg of LVM3 till date.

This is the first commercial mission of LVM3, first

multi-satellite mission with 36 OneWeb satellites

onboard, First launch of LVM3 to LEO, First Indian

rocket with six ton payload, First NSIL mission with

LVM3 and the First OneWeb Mission with NSIL/DoS.

OneWeb is a global communication network powered

from space enabling connectivity for governments,

businesses and communities. It is implementing a

constellation of LEO satellites.

India’s Bharti Enterprises serves as a major investor

and shareholder in OneWeb.

This is OneWeb’s 14th launch and with ISRO and NSIL

opens up the space sector in India.

The constellation will have a total of 648 satellites.

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