The Space Tracking and Surveillance (STSS) demonstration program satellites are ready to participate in missile defense tests after on-orbit calibration of the acquisitions and track sensors for both spacecraft were completed late last year by prime contractor Northrop Grumman [NOC], the company said in a statement released yesterday. Sensor calibration was the last major step during the on-orbit tests of the space vehicles, which were launched Sept. 25, 2009, in tandem configuration from Cape Canaveral Air Force Station, Fla. "We…
STSS Demo Satellites Ready For Missile Defense Tests
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