During the February 26th Data Select Mission Techninques meeting, Math Physics Branch (MPB) picked up three action items for the G mission, of which you should be aware….
Category: G
G Lunar Surface stuff is still incomplete
On February 27 we held a Mission Techniques meeting which I thought was going to simply edit the “final” version of the Lunar Surface Document prior to its release. To my chagrin we discovered that there are at least two areas requiring much more thought and analysis. We will probably meet again to resolve these…
F/G Rendezvous Mission Techniques – mostly F
As part of F/G Torture Week, we spent Thursday, January 30 on the rendezvous. Overall, I would say this mission phase is in pretty good shape with only a few unresolved items that we know about right now. I would like to tabulate here a bunch of odds and ends we agreed to at this…
Some “improvements” in the Descent preparation procedures
As we wade deeper and deeper into Descent Mission Techniques, one thing coming into focus is that, of all IMU error sources, the two that hurt the most are accelerometer bias and y-axis (pitch) misalignment at PDI. Having recognized this, we are now proposing some specific procedures to minimize them. This memo is to tell…
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…
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:…
There will be no VHF ranging data collected while tracking the LM on the lunar surface
It has been suggested that, in addition to optics and rendezvous radar tracking one spacecraft of the other while the LM is on the lunar surface, we should also utilize VHF ranging. This data would certainly be useful for post-flight analysis if not in real time. I have attempted to resolve the situation with regard…