Topic: NOAA 20 VIIRS Lunar Calibration Roll Maneuver Scheduled for January 24, 2021
 
Date/Time Issued:  January 22, 2021 1410Z
 
Product(s) or Data Impacted:  All NOAA 20 Sensor Data
 
Date/Time of Initial Impact:  January 24, 2021 08:52:01Z
 
Date/Time of Expected End: January 24, 2021 09:54:01Z
 
Length of Outage:  See Details.
 
Details/Specifics of change: On January 24, 2021, NOAA-20 will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -2.97 degrees centered at 09:17:01Z. Science data may be impacted while the spacecraft is pointing off-nadir during the attitude maneuver and the CERES instrument will not provide nominal science data as it will placed in a contamination safe mode.  The timeline of events for this maneuver are provided below.
 
The following observatory systems will be affected on January 24, 2021:
 
08:52:01Z –  09:54:01Z CERES will be in Contam-Safe and Standby, science data will not be available
 
09:07:01Z – 09:29:01Z  HRD will be off, data for direct broadcast users will be unavailable
09:11:29Z – 09:24:33Z VIIRS encoder offset and gain will be set for Moon observation
09:12:01Z – 09:24:01Z NOAA-20 will be pointing off-nadir, collected data may be impacted and not disseminated
  
 
Contact information for further information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880 24x7 or ross.cox@noaa.gov during normal business hours 
 
Web Site(s) for applicable information: N/A    
 
This message was sent by ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.