ILS Declares a Proton Launch Anomaly
Khrunichev State Research and Production Space Center (Khrunichev) and International Launch Services (ILS) regret to announce an anomaly during the launch of the Yamal 402 satellite. The satellite had been built by Thales Alenia Space for Russian satellite operator, Gazprom Space Systems.
The Proton Breeze M rocket lifted off at 7:13 p.m. today local time from the Baikonur Cosmodrome, carrying the Yamal 402 satellite. Preliminary flight information indicates that the 4th and final burn of the Breeze M engine ended about four minutes early and subsequently separated the spacecraft.
Thales Alenia Space is recalculating all the Launch Early Orbit Phase (LEOP) parameters in order to propose the possible recovery plans to Gazprom Space Systems.
A Russian State Commission will begin the process of determining the reasons for the anomaly. ILS will release details when data becomes available. In parallel with the State Commission, ILS will form its own Failure Review Oversight Board (FROB). The FROB will review the commission’s final report and corrective action plan, in accord with U.S. and Russian government export control regulations.
ILS will work diligently to identify the cause and implement corrective actions. Additional information will be provided as it becomes available.
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Source : International Launch Services