We cleaned up a lot of stuff at the subject meeting. Attached are updated “Ground Rules, Working Agreements, and other things,” and another list of open items to be discussed at our next meeting currently scheduled for September 6, 1968, or whenever the crew is available after that….
Category: Apollo missions
“D” MISSION RENDEZVOUS NAVIGATION MISSION TECHNIQUES PANEL
Objectives of the panel are to establish the following rendezvous navigation mission techniques……
“D” RENDEZVOUS MISSION TECHNIQUES OPEN ITEM LIST
July 25, 1968…
Requirement for pre-PDI IMU alignment has been deleted
After extensive Mission Techniques Panel review, it has been established that a PGNCS IMU alignment immediately prior to Powered Descent is not required for any reason. It is, in fact, undesirable at this critical time in the mission when lighting conditions couldn’t be worse (local high noon!)…
Lunar Landing Guidance and Control Modes
Gentlemen:…
What’s descent all about?
As a result of some stirring around within NASA on how the various guidance and control systems are used during descent, George Cherry of MIT took it upon himself to write a complete description of the capabilities that exist and how they may be used. Without doubt, this is the finest, briefest, most readable description…
Another meeting about trajectory control on the first manned Apollo mission (S/C 101)
As you may have heard, we had the first of the Trajectory Control Data Priority Panel meetings last Thursday, August 31. My original intent was to go through the four major exercises on the Spacecraft 101 mission involving the Guidance & Propulsion Systems at that meetint but time did not permit discussion of more than…
Comments on IMU compensation procedures
Attached is an MIT memo I thought you should see. It proposes that the MCC update the gyro compensation terms in the spacecraft computers whenever they are detectably wrong. One benefit, of course, is the possibility of eliminating a bunch of IMU alignments. But more important, it keeps the system right….
Reduction in Number of P52 Alignments During Apollo Missions
References: 1. RAPSIC Memo 2. Apollo 10 Flight Plan, March 12, 1969…