Guidance and Performance Branch Attention: FM7/S. P. MannAPR 30 196868-PA-T-91APA/Chief, Apollo Data Priority CoordinationPGNCS/AGS clock synchronization
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 to our ascent and descent monitoring.
I just wanted to alert you in case this is something your people should be looking into if you haven't already done so.