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The 24-hour countdown for the motorboat of LVM3-M6 rocket, which volition transportation a caller procreation U.S. connection outer commenced successful Sriharikota connected Tuesday (December 23, 2025), ISRO said.
In a dedicated commercialized mission, ISRO is scheduled to motorboat the Bluebird Block-2 spacecraft connected committee its dense assistance motorboat conveyance LVM3-M6 astatine 8.54 a.m. from the 2nd motorboat pad astatine this spaceport connected Wednesday (December 24, 2025).
Weighing 6,100 kg, the connection outer would beryllium the heaviest payload to beryllium placed into the Low Earth Orbit (LEO) successful LVM3 motorboat history, the ISRO said.
The erstwhile heaviest was the LVM3-M5 Communication Satellite 03, weighing astir 4,400 kg that was successfully launched by ISRO connected November 2.
Wednesday's (December 24, 2025) ngo is being undertaken arsenic portion of the commercialized statement signed betwixt NewSpace India Ltd (NSIL) and US-based AST SpaceMobile (AST and Science, LLC). NewSpace India Ltd is the commercialized limb of ISRO.
The historical ngo would deploy the adjacent procreation connection outer designed to supply high-speed cellular broadband straight to smartphones worldwide.
AST SpaceMobile is gathering the archetypal and lone space-based cellular broadband network, which is accessible straight by smartphones and designed for some commercialized and authorities applications.
Ahead of the launch, ISRO Chairman V. Narayanan offered prayers astatine the Sri Venkateswara Swamy Temple successful Tirumala connected December 23.
According to the Indian abstraction agency, the 43.5 metre gangly LVM3, besides known arsenic Geosynchronous Satellite Launch Vehicle MkIII, is simply a 3 signifier rocket with a cryogenic motor designed and developed by ISRO's Liquid Propulsion Systems Centre.
The conveyance uses 2 S200 coagulated rocket boosters to supply the immense magnitude of thrust required for assistance off. The booster has been developed by Vikram Sarabhai Space Centre.
After a formation of astir 15 minutes from liftoff, the Bluebird Block-2 outer is expected to get separated from the motorboat vehicle.
BlueBird Block-2 ngo is portion of a planetary LEO constellation to supply direct-to-mobile connectivity done satellite.
This constellation would alteration 4G and 5G dependable and video calls, texts, streaming and information for everyone, everyplace astatine each times. It features a 223m2 phased array, making it the largest commercialized communications outer each deployed into debased Earth Orbit, astir 600km altitude.
AST SpaceMobile had launched 5 satellites, BlueBird 1-5 successful September 2024 which supply continuous net sum crossed the United States and different prime countries.
The institution has planned to motorboat akin satellites to augment its web enactment and has partnered with implicit 50 mobile operators crossed the globe.
