Beschreibung:

FLOWN ON APOLLO 11 – Apollo 11 Flight Plan, page 102C . NASA/MSC, 1 July 1969. "... and returning him safely to Earth." A flown star chart used to determine Columbia's position while returning home. SIGNED and INSCRIBED by Buzz ALDRIN in the left margin: "Carried to the Moon on Apollo XI." [With:] Buzz Aldrin's provenance letter, reading in part: "This sheet illustrates what was the expected view through our scanning telescope and sextant while we performed an IMU (Inertial Measurement Unit) alignment just after our TransEarth Injection (TEI) burn which brought us back from the Moon. That spacecraft burn had to work. If it did not, Neil Armstrong, Michael Collins and myself would remain in lunar orbit, never to return to earth. Mike took a navigational reading after locating the stars named ACAMAR and MENKAR. After a series of star sightings, these “readings” would provide our IMU with a new platform of our location in space after the TEI burn. On(ce) we had this information, we then set Columbia into the TEC PTC mode or Passive Thermal Control during the TransEarth Coast period of our flight. PTC was simply a rotation of Columbia along one axis to keep an even distribution of temperatures while being heated by the sun. Flight events were extremely busy prior to making these star sightings. Before the TEI burn, we had just jettisoned the Lunar Module at about 131 hours and 52 minutes into the mission. Neil and I had completed the rendezvous with Columbia a few hours before and then started the task of transferring equipment and lunar material from Eagle to Columbia after docking at about 128 hours into the mission. " Single sheet, 8 by 10.5 inches, printed recto only.