During our “D/E” Rendezvous Data Priority meeting of April 29, Al Nathan reported that it is likely the PGNCS and AGS clock may not be synchronized to better than 3/4 of a second – at least if we use the procedures currently planned. This is probably okay for rendezvous, but I wonder what it does…
Category: Apollo missions
LM3 AGC will use Kearfott accelerometers
Bob Gardiner announced at George Low’s April 6 staff meeting that there are no Abort Sensor Assemblies available with Bell accelerometers. On the other hand, one is available with the Kearfott Group accelerometers – ahead of schedule. It is their intention to use this one on LM3….
Fourth Mission “D” Rendezvous Mission Techniques meeting
The first item discussed at this February 18 meeting really involved all Apollo rendezvous, which accounts for the long attendance list. The subject was whether or not to change the orbital travel between Terminal Phase Initiation (TPI) and theoretical braking from 140° to 130°. It was stated that this change would make necessary reworking the…
G Lunar Surface Phase Mission Techniques
During the first half of 1968 we held a sequence of meetings which culminated in a proposed set of mission techniques concerning use of the guidance and propulsion systems while the LM is in the lunar surface. This was documented in a Lunar Surface Phase Mission Techniques book, dated October 6, 1968. On February 5…
Fifth “D” Mission Rendezvous Mission Techniques meeting—don’t miss Paragraph 5; it’s great!
We spent just about the entire February 26 meeting discussion the way the AGS and PNGCS should be used during the “D” Mission rendezvous. I feel as though we have accomplished quite a lot in this area having reached agreement on how the AGS should be used throughout that mission phase, with one minor exception….
Seventh “D” Mission Rendezvous Mission Techniques meeting
The “D” Rendezvous Mission Techniques meeting of March 10 was probably one of the least productive so far, and I sincerely apologize for it. I must have been tired or something. Even so, with all that talent present, there must be something worthwhile reporting….
Spacecraft computer program status for AS-501
This memorandum is to give my impression of what went on during the meeting MIT on September 12, 1966, regarding the AS-501/502 spacecraft guidance computer program. Primarily I would like to describe the status of this program as we see it now….
C Prime Maneuver Monitoring Mission Techniques into cement
On November 2 we went over the C’ Maneuver Monitoring Mission Techniques for the last time – that is, we all hope and expect it’s “final.” Although, the detailed procedures will be documented elsewhere, I would like to describe the new things we established at this meeting. They deal primarily with overburn protection by manual…
G Rendezvous
In spite of the feverish activity we have on three swinging missions C, C’, and D, a few of us found a couple of minutes to spend on the G Rendezvous. Some things came out of it that are probably worth reporting:…
C’ Contingency Procedures – Draft Review
A review of the C’ Contingency Procedures Techniques Document is currently scheduled for October 22, 1968. Topics included are:…