↑de Selding, Peter B. (15 October 2012)."Orbcomm Craft Launched by Falcon 9 Falls out of Orbit". Space News.goân-loē-iông tī 12 May 2015 hőng khó͘-pih.15 October 2012 khòaⁿ--ê.Orbcomm requested that SpaceX carry one of their small satellites (weighing a few hundred pounds, versus Dragon at over 12,000 pounds)... The higher the orbit, the more test data [Orbcomm] can gather, so they requested that we attempt to restart and raise altitude. NASA agreed to allow that, but only on condition that there be substantial propellant reserves, since the orbit would be close to theInternational Space Station. It is important to appreciate thatOrbcomm understood from the beginning that the orbit-raising maneuver was tentative. They accepted that there was a high risk of their satellite remaining at the Dragon insertion orbit...
↑Graham, William (21 December 2015)."SpaceX returns to flight with OG2, nails historic core return". NASASpaceFlight.goân-loē-iông tī 22 December 2015 hőng khó͘-pih.22 December 2015 khòaⁿ--ê.The launch also marked the first flight of the Falcon 9 Full Thrust, internally known only as the "Upgraded Falcon 9"
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