Subject: Administrative: Suomi-NPP Lunar Roll Maneuver scheduled for This is a multi-part message in MIME format. --Boundary_(ID_SfT2NW0ZjxBVn7fYARV2Uw) Content-type: text/plain; charset=utf-8; format=flowed Content-transfer-encoding: 8BIT Topic: S-NPP VIIRS Lunar Roll Date/Time Issued: May 28, 2015 , 1536 UTC Product(s) or Data Impacted: All Suomi-NPP Sensor Data Date/Time of Initial Impact: May 29, 2015 04:24:10 UTC Date/Time of Expected End: May 29, 2015 05:20:10 UTC Length of Outage: See Details. Details/Specifics of Change: Suomi-NPP will perform a spacecraft attitude maneuver, for the VIIRS Lunar Calibration, with a roll of -2.306 degrees centered at 2015-05-29T04:47:10 UTC. 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 2015 April 29: 04:24:10 UTC – 05:20:10 UTC CERES will be in Contam-Safe, science data will not be available 04:39:10 UTC – 04:55:10 UTC HRD will be off, data for direct broadcast users will be unavailable 04:43:40 UTC – 04:50:41 UTC VIIRS encoder offset and gain will be set for Moon observation 04:44:10 UTC – 04:50:10 UTC S-NPP will be pointing off-nadir and collected data during that time period may be impacted 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 to 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. --Boundary_(ID_SfT2NW0ZjxBVn7fYARV2Uw) Content-type: text/html; charset=utf-8 Content-transfer-encoding: 8BIT

Topic: S-NPP VIIRS Lunar Roll

Date/Time Issued: May 28, 2015 , 1536 UTC

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

Date/Time of Initial Impact: May 29, 2015 04:24:10 UTC

Date/Time of Expected End: May 29, 2015 05:20:10 UTC

Length of Outage: See Details.

Details/Specifics of Change: Suomi-NPP will perform a spacecraft attitude maneuver, for the VIIRS Lunar Calibration, with a roll of -2.306 degrees centered at 2015-05-29T04:47:10 UTC. 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 2015 April 29:

04:24:10 UTC – 05:20:10 UTC CERES will be in Contam-Safe, science data will not be available

04:39:10 UTC – 04:55:10 UTC HRD will be off, data for direct broadcast users will be unavailable

04:43:40 UTC – 04:50:41 UTC VIIRS encoder offset and gain will be set for Moon observation

04:44:10 UTC – 04:50:10 UTC S-NPP will be pointing off-nadir and collected data during that time period may be impacted

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 to 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.

--Boundary_(ID_SfT2NW0ZjxBVn7fYARV2Uw)--