A Russian Proton-M/Briz-M rocket blasted off from Site 81/24 at the Baikonur Cosmodrome at 3:45 UTC on June 8, 2017 on a mission to deliver the 6,871-Kilogram EchoStar-21 mobile communications satellite to Geostationary Transfer Orbit.
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A Russian Proton rocket is moved to the launch pad at Site 81/24 on June 5, 2017 in preparation for the launch of EchoStar-21 – marking Proton’s comeback mission after staying on the ground for almost a full year
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A Russian Proton Rocket is assembled at the Baikonur Cosmodrome for a long-awaited mission, coming almost a full year after the most recent launch of the heavy-lift vehicle.
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After being forced to stand down for half a year, technicians and engineers resume the Proton-M/EchoStar-21 launch campaign which entered an extended break in December when it became known the Proton’s upper stage engine used potentially flawed materials.
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The EchoStar-21 satellite undergoes final pre-launch processing steps at the Baikonur Cosmodrome, being installed atop the Briz-M upper stage followed by encapsulation in the protective payload fairing and shipment to the Launcher Integration Facility.
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The EchoStar 21 Mobile Communications Satellite is delivered to the Baikonur Cosmodrome in Kazakhstan by an Antonov cargo aircraft after completing a transcontinental flight from satellite manufacturer Space Systems Loral in California.
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