n MNASSA : Monthly Notes of the Astronomical Society of South Africa - Delta IV launch fuel dump observed out to nearly 20 000 km : observers page




As with many launches from the United States, South Africa was downrange along the ground track (see Fig. 2) of the launch of the military WGS 4 mission on a Delta IV rocket from Cape Canaveral, Florida, planned for 20 January 2012 at 00:38 UTC. At 01:09:36 UTC, the second stage burn was scheduled to insert itself and its payload into a highly elliptical orbit of approximately 440 X 67 000 km with the payload separating about 10 minutes later into a super-synchronous transfer orbit.


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