First Scorpene submarine delivered to Navy। Named Kalvari, after India’s first Foxtrot class submarine, it will formally be commissioned very soon। India’s legend, Marshal of the Air Force Arjan Singh passes away। Terror attack in London Tube, many injured । Police, Emergency Services Respond Well । London on high alert । North Korea fires a ballistic missile over Japan again, and threatens to sink the island state । UN censures North Korea, and so does most of the world, including India । Prime Miinister Abe’s visit to Ahmedabad brings Japan and India closer। New Delhi and Tokyo condemn terrorism, and Pakistan’s role in promoting it । India and Japan agree on multi spectrum cooperation, including in defence । Global majors present new warfighting and anti terrorism technologies at DSEI in London । India will set up 28 nuclear reactors at five sites to generate 32,000 mw । India, China agree to disengage troops at Dokalam ।
September 23, 2017
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Ariane 5 reaches the launch zone for tomorrow’s dual-satellite mission

Published: September 2017


Arianespace has delivered another Ariane 5 to the launch zone at Europe’s Spaceport in French Guiana, positioning the heavy-lift vehicle for its September 5 flight with two telecommunications satellites: Intelsat 37e and BSAT-4a.

Riding atop a mobile launch table, Ariane 5 was transferred to the ELA-3 launch zone from the Spaceport’s Final Assembly Building – where its two passengers had been integrated as part of pre-flight preparations.

With the rollout now completed, the final countdown will begin for a liftoff tomorrow at the start of a 33-min. launch window that opens at 6:51 p.m. local time in French Guiana.

For this 239th launch of an Ariane-series vehicle – designated Flight VA239 in Arianespace’s numbering system – the payload lift performance to geostationary transfer orbit is an estimated 10,838 kg. The total factors in the mass of Intelsat 37e and BSAT-4a, plus the launch vehicle’s dual-passenger dispenser system and satellite integration hardware.

Intelsat 37e is riding as the upper passenger in Ariane 5’s payload arrangement, to be released 29 minutes into tomorrow’s mission. The spacecraft, with a liftoff mass estimated at 6,438 kg., was built for Intelsat by Boeing using a 702MP platform, and will operate from an orbital position of 342 deg. East.

BSAT-4a – whose launch is part of a turnkey contract between Japan’s Broadcasting Satellite System Corporation (B-SAT) and U.S.-based manufacturer SSL – will be deployed from Ariane 5’s lower passenger position. Based on the SSL 1300 platform, this satellite’s separation will occur 47 minutes after liftoff – completing Arianespace’s September 5 mission. BSAT-4a has an estimated liftoff mass of 3,520 kg. and will operate from a 110 deg. East orbital slot.




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