TRW Systems released the AS-207/208 Preliminary Spacecraft Reference Trajectory during the first week of May. This report was put together on a compressed schedule, starting from rather hastily defined mission requirements. As a result, there are a number of things about it which were recognized as being in error even before release; however, since we…
Month: May 1966
Spacecraft computer program requirements for AS-207/208, AS-503, and AS-504
On May 13 and 14, 1966, a flock of MSC people met with MIT people in Boston to discuss the spacecraft computer program requirements for missions AS-207/208, AS-503, and AS-504. This memorandum is probably one of several on the subject you will be getting in the near future. My main purpose is to describe the…
CSM orbit determination using the LEM radar
Apparently it is planned to use the LEM radar while that spacecraft is sitting on the lunar surface to determine the CSM’s orbit. I am told that the radar angle data accuracy is so poor it will not even be used; the command module’s orbit determination will be carried out with range and range rate…
Apollo spacecraft computer program development newsletter
There are a number of us who feel that the computer programs for the Apollo spacecraft will soon become the most pacing item for the Apollo flights. This is certainly likely to be the case for AS-207/208, by which time spacecraft, and booster delivery and Cape operations are likely to have become relatively routine, with…