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000
NOUS72 KNES 272318
ADMNES
SUBJECT: ADMINISTRATIVE: SUOMI-NPP LUNAR ROLL MANEUVER SCHEDULED FOR
TOPIC: S-NPP VIIRS LUNAR ROLL

DATE/TIME ISSUED:   MARCH 27, 2015, 23:08:00 UTC

PRODUCT(S) OR DATA IMPACTED:  ALL SUOMI-NPP SENSOR DATA

DATE/TIME OF INITIAL IMPACT:   MARCH 30,  16:24:07  UTC

DATE/TIME OF EXPECTED END:   MARCH 30, 17:26:07 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
-5.238 DEGREES CENTERED AT 2015-03-30T16:49:07 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 MARCH 30:
16:24:07 UTC -- 17:26:07 UTC  CERES WILL BE IN CONTAM-SAFE, SCIENCE
DATA
WILL NOT BE AVAILABLE
16:39:07 UTC -- 17:01:07 UTC  HRD WILL BE OFF, DATA FOR DIRECT
BROADCAST
USERS WILL BE UNAVAILABLE
16:43:37 UTC -- 16:56:38 UTC  VIIRS ENCODER OFFSET AND GAIN WILL BE SET
FOR MOON OBSERVATION
16:44:07 UTC -- 16:56:07 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.




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