FLOWN APOLLO 11 FLIGHT PLAN SHEETTHE FIRST CELESTIAL CALIBRATION MEASUREMENTS TAKEN DURING THE FLIGHT.
Apollo 11 Flight Plan, pp 3-7/3-8, a single sheet printed recto and verso. NASA/MSC, July 1, 1969. 10½ by 8 inches. Extensive annotations in pencil by Collins and in ink by Aldrin. With a Typed Letter Signed by Buzz Aldrin.
During this period of the mission the Apollo 11 crew performed and logged the results of critical calibration procedures to the navigational equipment. This insured that upcoming Mid Course Correction (MCC) engine burns would keep their trajectory exactly on target to their planned landing pointthe Sea of Tranquility.
ACCOMPANIED BY BUZZ ALDRIN'S LETTER, which reads in part: "Enclosed with this letter is a sheet numbered 3-7 and 3-8 from the Apollo 11 Flight Plan, Part No. SKB32100080-350, S/N 1001. It is part of the entire document that was carried to the Moon in Command Module Columbia during the first lunar landing mission during July 16 to 24, 1969. This sheet is from the detailed timeline section and covers from hour six to the beginning of hour nine of the mission.
Page 3-7 has extensive notes made during the flight by Michael Collins and myself. Mike used a pencil and I used a black marker. This side features a large drawing of the earth as it would appear to us in space. The earth's horizon would be used during some of the navigation work. Mike logged the new roll, pitch, and yaw angles of: '346.5, 345.0, 007.8' as sent from Mission Control. Columbia and Eagle were then maneuvered to this attitude so we could begin the optics calibration using STAR 30 which was Menkent.
We then started the Cislunar Navigation or P(rogram) 23 procedures in order to establish precise navigation to make the first lunar landing. I updated the change of: ' .6 , .7' to the P23 attitude that was hand written in prior to launch. Mike made the series of five star sightings through the sextant and wrote the number of calibration marks for each star in parenthesis. He wrote: '(3 MARKS)' each time for STAR numbers 02, 40, and 45. The long arrow was draw before launch to have us use STAR 02 for calibration as step number 4. Mike had some problems seeing STAR 44 due to glare in the sextant at that attitude. Once everything was reviewed, Mike took six marks on STAR 44 as he indicated with '(6 MARKS)' and the drawing of two arrows pointing to STAR 44 which was Enif.
During these procedures, I logged some 18 numbers associated with these star sightings. The numbers: '197.8, 128.5, 340.0, 195.2, 123.9 340.0' were new roll, pitch, and yaw angles sent to us from Mission Control to enable sextant viewing of these stars.
After a very busy seven hours of flight, we were finally able to get a lunch break as indicated on page 3-8. This was our first chance during the mission to take a few moments to briefly reflect on events. Our launch was exactly on time, the Translunar Injection burn worked as planned, and we had no problems docking to and pulling Lunar Module Eagle from its berth in the Saturn third stage.
This page has been in my private collection since 1969. I have written on page 3-7 and 3-8: 'Carried to the Moon on Apollo XI' and signed each page." A copy of the flight plan cover is enclosed.