This memo is to document the cis-lunar midcourse correction mission techniques we agreed to January 27 and 28 at the F and G Mission Techniques meetings. The translunar maneuvers are based on the following assumptions and guidelines:…
Category: Apollo 11
G mission lunar descent is uphill – all the way
Just in case you didn’t know, I thought I would send you this note about some nominal G mission landing site characteristics which I thought were kind of interesting. First of all, apparently this landing site (2-P-6) is about 9,000 feet lower than the mean lunar radius. The significance of this, of course, is that…
CSI and CDH back into the AGS – maybe
Apparently the TRW AGS people have done a good job of putting the new rendezvous radar navigation filter into that dinky computer. In fact, they now estimate a surplus of some 80 words….
Let’s drop one of the lunar surface RR tests
During our review of the G Mission Lunar Surface Mission Techniques Document on April 10, we came to a conclusion which may interest you. It deals with the need, or really lack of need, for the crew to do some things that are in the current flight plan. Specifically, in the crew LM timeline, we…
Some new ideas on how to use the AGS during Descent
This memo is to fill you in on a couple of late crew procedure changes proposed for the G mission regarding AGS operation during descent. The first is a technique to prepare the AGS for immediate ascent which can be used to quickly reinitialize the AGS LM state vector immediately after touchdown if there is…
Lunar Rendezvous Mission Techniques
On May 28 we finally kicked off the Lunar Rendezvous Mission Techniques business. Because of the imminence of missions “D” and “E”, we started on those first some months ago. Now I wish we hadn’t because they are so darned complicated. I have a feeling the lunar rendezvous can be finished up quicker than they…
F/G Mirror Image Targeting shall use a three-minute delay
As you know, we have established as a standard procedure during Apollo rendezvous having CSM backup LM maneuvers in order to retain the nominal relative motion during this critical mission phase. On the D mission these “mirror image” CSM maneuvers are targeted with TIG delayed one minute after the LM TIG. One minute was chosen…
Lunar rendezvous shaping up
On June 26 we took another wack at the “G” Rendezvous Mission Techniques. I think we now have most of the basic things squared away so that we can get into the detail with some confidence. The most significant decisions were:…
Some MPAD work needed for the G mission
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….
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…