Acquisition Information: The CALIPSO satellite payload was commanded to SAFE mode on September 23, 2011 due to an increase in 10 MeV proton flux. The payload was down from September 23, 2011 at 22:34:37 UTC to September 29, 2011 at 15:01:15 UTC.
Due to a pointer error caused by the payload transition to SAFE, science data was lost on September 29, 2011 at 15:01:15 until 21:12:21 UTC.