Subject: Administrative: Suomi-NPP VIIRS Lunar Calibration Roll This is a multi-part message in MIME format. --Boundary_(ID_nISoSt6s+KKhNiH6CCKI/g) Content-type: text/plain; charset=utf-8; format=flowed Content-transfer-encoding: 8BIT *Topic*: S-NPP VIIRS Lunar Calibration Roll Maneuver Scheduled for April 25, 2018 *Date/Time Issued*: April 23, 2018 2105Z *Product(s) or Data Impacted*: All S-NPP Sensor Data *Date/Time of Initial Impact*: April 25, 2018 19:05:34Z * **Date/Time of Expected End*: April 25, 2018 20:07:34Z *Length of Outage*: See Details. *Details/Specifics of change*: On April 25, 2018, S-NPP will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -3.06 degrees centered at 19:30:34Z. 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 2018 April 25: 19:05:34 Z – 20:07:34 Z CERES will be in Contam-Safe, science data will not be available 19:20:34 Z – 19:42:34 Z HRD will be off, data for direct broadcast users will be unavailable 19:25:04 Z – 19:38:05 Z VIIRS encoder offset and gain will be set for Moon observation 19:25:34 Z – 19:37:34 Z S-NPP will be pointing off-nadir, collected data may be impacted and not disseminated *Contact Information for Further Information*: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 *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.govor (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request. --Boundary_(ID_nISoSt6s+KKhNiH6CCKI/g) Content-type: text/html; charset=utf-8 Content-transfer-encoding: 8BIT
Topic: S-NPP VIIRS Lunar Calibration Roll Maneuver Scheduled for April 25, 2018

Date/Time Issued:  April 23, 2018 2105Z

Product(s) or Data Impacted:  All S-NPP Sensor Data

Date/Time of Initial Impact: April 25, 2018 19:05:34Z

Date/Time of Expected End: April 25, 2018 20:07:34Z

Length of Outage:  See Details.

Details/Specifics of change: On April 25, 2018, S-NPP will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -3.06 degrees centered at 19:30:34Z. 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 2018 April 25:

19:05:34 Z – 20:07:34 Z  CERES will be in Contam-Safe, science data will not be available
19:20:34 Z – 19:42:34 Z  HRD will be off, data for direct broadcast users will be unavailable
19:25:04 Z – 19:38:05 Z  VIIRS encoder offset and gain will be set for Moon observation
19:25:34 Z – 19:37:34 Z  S-NPP will be pointing off-nadir, collected data may be impacted and not disseminated


Contact Information for Further Information:  ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

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.govor (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.
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