The company will pay more for a dedicated Ariane 5 launch in order to get the satellite in service before the 2016 Summer Olympics in Rio de Janeiro.
Managers of the Russian rocket are also using contract modifications, including schedule priority on Proton’s launch manifest for commercial missions and other benefits not directly related to prices.
International Launch Services on Sept. 11 said President Phil Slack is leaving the company after three years in his job and is being replaced by Kirk Pysher, who has been ILS’s mission assurance vice president.
Inmarsat confirmed that the satellite was healthy and had been placed in the correct super-synchronous transfer orbit 15 hours and 31 minutes after the launch from Russia’s Baikonur Cosmodrome in Kazakhstan.
A Proton M rocket launched from the Baikonur Cosmodrome at 7:44 a.m. EDT on its first mission since a failed launch in May. Confirmation of a successful mission, however, is not expected until the rocket's upper stage releases the Inmarsat-5 F3 satellite more than 15 hours after liftoff.
Russia’s Proton rocket is scheduled to return to commercial service in late August or early September following the conclusion of a government investigation into a May failure that destroyed a large Mexican telecommunications satellite and shook once again the market’s confidence in the rocket.
The May 29 statement by Roscosmos on the May 16 Proton rocket failure confirmed initial suspicions of a third-stage engine issue but otherwise left many questions unanswered about the failure’s origin.
Satellite owners and insurance underwriters who have booked or insured launches aboard Russia’s Proton rocket in the coming months have little choice but to stick with the rocket despite the fact that the vehicle’s May 16 failure was its fourth since mid-2012.
An International Launch Services (ILS) Proton rocket carrying Mexico’s Centenario mobile communications satellite failed about eight minutes and 10 seconds after liftoff May 16 in what early reports said was a problem with the rocket’s third stage.
An International Launch Services (ILS) Proton rocket on Feb. 2 successfully placed the Inmarsat 5 F2 Global Xpress Ka-band mobile broadband satellite into a supersynchronous transfer orbit fifteen and one-half hours after launch from Russia’s Baikonur Cosmodrome in Kazakhstan.
A Russian Proton rocket on Dec. 28 successfully placed the Astra 2G satellite into geostationary transfer orbit, a launch whose delay forced satellite owner SES to reorganize its future military telecommunications joint venture with the Luxembourg government.