Lunar Cruise Day 3

Late Saturday night (and early Sunday morning), I created products for the onboard computer that compensate for the launch-vibration aftereffects on the star trackers and the gyroscopes. The flight director authorized me to proceed with creation of these products using a highly reliable (but not yet validated) input data set provided by our Attitude Ground System colleagues. We knew it was very likely that the data would be correct, so it was a sensible use of time (and would allow me to get to sleep earlier) to have me work while AGS validation was still in progress. As expected, the validation passed, and the calibration products were uplinked to the Orbiter later on Sunday morning.

Tonight I asked the AGS lead how the spacecraft is doing with its new sensor-alignment information and he reported that its attitude knowledge is essentially perfect.