This evening, an Ariane 5 launcher lifted off from Europe’s Spaceport in French Guiana on its mission to place two telecommunications satellites, Astra-2F and GSAT-10, into their planned geostationary transfer orbits.

Liftoff of flight VA209, the 65th Ariane 5 mission, came at 21:18 GMT (23:18 CEST; 18:18 French Guiana). The target injection orbit had a perigee altitude of 249.5 km, an apogee altitude of 35 937 km and an inclination of 6° relative to the equator.

The satellites were accurately injected into their transfer orbits about 27 minutes and 30 minutes after liftoff, respectively.

From this transfer orbit, the satellites’ own apogee booster motors circularise their orbits to attain geostationary orbit – where they keep pace with Earth’s own rotation, causing them to remain at fixed points in the sky.

Astra-2F will be positioned above the equator at 28.2°E. It will provide new-generation direct-to-home TV broadcast services to Europe, the Middle East and Africa.

GSAT-10, to be positioned at 83°E, will provide telecommunication, direct-to-home broadcasting and radio-navigation services to India.

The payload mass for this launch was 10 211 kg; the satellites totalled 9401 kg, with payload adapters and dispensers making up the additional 810 kg. This was a new record for Ariane 5 ECA performance.

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