Apollo 9 had a busy day in orbit, putting the Command/Service Module (CSM) and its Service Propulsion System (SPS) rocket engine through their paces.
Command Module Pilot Dave Scott performed alignments of the guidance system and its vital computer four times and the crew executed burns of the SPS three times at 0912, 1217, and 1524 (Eastern Time; MET for the burns were 22:12:04, 25:17:39, and 28:24:41).
McDivitt, Scott, and Schweickart's day ended at 1700 ET (30:00:00 MET) when they began a nine-hour sleep period. They're going to need their rest, because the next day is scheduled to be the first time a manned Lunar Module is going to be powered up and tested.
Through 30 hours Mission Elapsed Time, Apollo 9 has completed 19 revolutions of the Earth.
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