Start Time: The Year-Month-Day Hour:Minute that the observation began. This is roughly mid-slew.

End Time: The Year-Month-Day Hour:Minute that the observation ended. The MOC will get all the data from the observation 1 to 5 days after the end time. If an observation was segmented, it will not considered to be completed until all segments are completed. This page reports when the observation ends not the segment.