####018001516####
NOUS72 KNES 191649

ADMNES

TOPIC:  NOAA-20 OVERYAW MANEUVER (OYM) SCHEDULED FOR APRIL 22, 2024





DATE/TIME ISSUED: APRIL 19, 2024 1643Z





PRODUCT(S) OR DATA IMPACTED:  ALL NOAA-20 SENSOR DATA





DATE/TIME OF INITIAL IMPACT: APRIL 22, 2024 19:31:46





DATE/TIME OF EXPECTED END:  APRIL 22  , 2024 21:49:00





LENGTH OF OUTAGE:  SEE DETAILS.





DETAILS/SPECIFICS OF CHANGE: ON APRIL 22, 2024   20:04:46Z





NOAA-20 WILL PERFORM A 12 SECOND PROPULSIVE OVERYAW MANEUVER (OYM) TO

RE-ESTABLISH MISSION ORBIT.







THE FOLLOWING OBSERVATORY SYSTEMS WILL BE AFFECTED ON APRIL 22, 2024:



19:31:46Z - 21:49:00Z  CERES WILL BE IN CONTAM-SAFE MODE, SCIENCE WILL NOT

BE AVAILABLE

19:41:46Z - 20:18:00Z  OMPS WILL BE IN DECON MODE, SCIENCE WILL NOT BE

AVAILABLE

19:46:46Z - 20:26:00Z  HRD WILL BE OFF, DATA FOR DIRECT BROADCAST USERS

WILL BE UNAVAILABLE

19:51:46Z - 20:04:58Z  N20 IN CONTROL FRAME 2 (OVERYAW MANEUVER (OYM))

DELTA-V CONTROL FRAME

19:51:46Z - 20:21:00Z  N20 POINTING OFF NADIR, COLLECTED DATA DURING THAT

TIME PERIOD 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 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



=