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The #Landsat Data Continuity Mission spacecraft is on its own after a successful separation from the Centaur upper stage.
The Centaur's single engine shut down as planned. The spacecraft will separate from the empty Centaur booster in a few minutes.
The #Landsat spacecraft is moving at 14,200 mph. Two minutes before the Centaur engine shuts down to begin a 55-minute coast phase.
Chilldown process is under way ahead of the fueling of the Centaur upper stage with liquid hydrogen.
The Centaur upper stage was developed in the 1960s at @NASAGlenn in Ohio, then called Lewis Research Center.
The tanks in the Atlas V & Centaur upper stage are being loaded w/propellants as countdown proceeds #Landsat.
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