Live coverage: 400th Proton rocket takes off with Russian satellite

India’s Geosynchronous Satellite Launch Vehicle Mk.2 lifted off at 1040 GMT (5:40 a.m. EST; 4:10 p.m. Indian Standard Time) with the GSAT 7A communications satellite for the Indian Air Force. The rocket placed the spacecraft into a supersynchronous transfer orbit around 19 minutes after liftoff from Sriharikota on India’s east coast.

It will take more than 12 hours from liftoff of the European Space Agency’s ExoMars Trace Gas Orbiter until engineers verify the mission is on track for Mars after a series of critical in-space maneuvers by the Proton rocket’s Breeze M upper stage.

Khrunichev and International Launch Services, the team behind Russia’s Proton rocket, are developing two scaled-down versions of the booster in a bid to capture a wider share of the commercial launch market, the companies announced last week.