Intelsat S.A. announced today that ILS Proton/Breeze-M vehicle has successfully launched the Intelsat 23 satellite. The liftoff occurred at 4:37 a.m. EDT (2:37 p.m. local time) from the Baikonur Cosmodrome in Kazakhstan and after 9 hours and 30 minutes mission the satellite was separated from the rocket’s upper stage.
Ariane-5 ECA launcher successfully delivered ASTRA 2F and GSAT 10 communications satellites into the geostationary transfer orbit from the European Spaceport in Kourou, French Guiana. It was the 5th successfull launch of Ariane-5 of Y2012 with 2 more mission planned till the end of this year.
The Sea-Launch Zenit-3SL vehicle launched from a mobile platform in the equatorial Pacific Ocean at 2:55 a.m. EDT on Aug 18 (06:55 GMT on Aug 19) has successfully delivered the Intelsat 21 satellite to a the destination orbit after 30-minutes mission. Satellite signal was acquired at 3:52 a.m. EDT.
Due to the failure of Breeze-M upper stage both satellites were left on off-nominal intermediate orbit. 3rd burn of the Breeze M main engine occurred as scheduled but it was cut off within 7 seconds instead of the nominal 18 minutes and 5 seconds.
Arianespace’s Ariane 5 launched from the Spaceport in French Guiana today has successfully delivered the Intelsat 20 and HYLAS 2 satellites to geostationary transfer orbit after 34 minutes mission. It was the milestone 50th consecutive successful Ariane 5 heavy-lift launcher flight!