A D4 (Delta 4 heavy) rocket vaults from its lauch pad in Cape Canavaral Air Force station in Florida with a pair of US military satellites which is meant to keep track of other nations spacecraft. This was from US air force’s Geosynchronous Space Situational Awareness Program (GSSAP) which will also track space debris which is a hazard for space craft as contact with spacecraft could cost millions. Ground based tracking systems can only monitor objects 10cm in diameter
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