391
NOUS72 KNES 181204
ADMNES
UPDATE #10: THE NOAA-15 DECOMMISSIONING IS SCHEDULED FOR AUGUST 19, 2025,
EXACT TIME TBD, DUE TO THE EMERGENCY DECOMMISSIONING OF NOAA-19 ON AUGUST
13, 2025 AT 1655 UTC

UPDATE #9: THE NOAA-15 DECOMMISSION IS DELAYED TO THE WEEK OF AUGUST 18,
EXACT DATE TBD, DUE TO A NOAA-19 ANOMALY.

UPDATE #8: THIS IS THE FINAL REMINDER THAT NOAA-15 IS SCHEDULED TO BE
DECOMMISSIONED ON AUGUST 12, 2025 FROM 1506 TO 1520 UTC. NOAA-19 WILL
FOLLOW ONE WEEK LATER ON AUGUST 19, 2025.

UPDATE #7:  NOAA HAS COMPLETED END OF LIFE (EOL) TESTING ACTIVITIES FOR
NOAA-15 AND NOAA-19 AND WILL COMMENCE THE DECOMMISSION PROCESS SHORTLY.
THESE TWO REMAINING SATELLITES IN THE NOAA POLAR OPERATIONAL ENVIRONMENTAL
SATELLITES (POES) CONSTELLATION ARE FAR BEYOND THEIR PRIMARY MISSION DESIGN
LIFE. ALL HAVE INCURRED SUBSYSTEM AND INSTRUMENT DEGRADATION OR FAILURES
AND HAVE ENTERED A "TWILIGHT PHASE" WHERE FAILURE MODES ARE INCREASINGLY
LIKELY. AS A REMINDER, NOAA-18 WAS DECOMMISSIONED ON JUNE 6, 2025 AT 1740
UTC DUE TO AN UNRECOVERABLE FAILURE TO THE S-BAND TRANSMITTER. THE
REMAINING SATELLITES IN THE LEGACY POES CONSTELLATION WILL BE
DECOMMISSIONED AS FOLLOWS: NOAA-15 ON AUGUST 12, 2025 AND NOAA-19 ON AUGUST
19, 2025.



UPDATE #6: AT 1800 UTC ON JUNE 16, 2025, NOAA SUSPENDED POES DATA (NOAA-15
AND NOAA-19) TO USERS. NOAA-18 WAS DECOMMISSIONED ON JUNE 6, 2025 AT 1740
UTC.

NOAA-15 AND NOAA-19 WILL BEGIN END OF LIFE (EOL) TESTING ACTIVITIES.
OPERATIONAL PRODUCTS DELIVERED FROM PRODUCTION DISTRIBUTION AND ACCESS
(PDA) ARE NOW SUSPENDED. DIRECT USERS SHOULD MAKE PLANS TO DISCONTINUE USE
OF POES DATA.



UPDATE #5: THIS IS A 3 DAY REMINDER FOR SUSPENSION OF POES DATA (NOAA-15
AND NOAA-19) TO USERS AFTER JUNE 16, 2025. NOAA-18 WAS DECOMMISSIONED ON
JUNE 6, 2025 AT 1740 UTC.

UPDATE #4: BASED ON NOAA   S REQUIREMENT TO RESPONSIBLY MANAGE ON-ORBIT
ASSETS, NOAA WILL COMMENCE WITH DECOMMISSIONING ACTIVITIES IMMEDIATELY FOR
NOAA-18. THE EXACT DATE/TIME OF DECOMMISSION IS NOT YET DETERMINED, AND IS
PENDING COMPLETION OF PRE-DECOMMISSION PROCESSES. USERS ARE ADVISED TO
DISCONTINUE USE OF ALL NOAA-18 SCIENCE PRODUCTS IMMEDIATELY.

UPDATE #3: THIS IS THE 2 WEEK REMINDER FOR SUSPENSION OF POES DATA TO USERS
AFTER JUNE 16, 2025. PLEASE ALSO NOTE THAT ON MAY 31, 2025, THE NOAA-18
STX-4 S-BAND DOWNLINK TRANSMITTER EXPERIENCED AN ANOMALY THAT RESULTED IN
CONSIDERABLE IMAGERY DEGRADATION AND DATA DROP OUTS. USERS ARE ADVISED TO
DISCONTINUE USE OF ALL NOAA-18 SCIENCE PRODUCTS IMMEDIATELY.



UPDATE #2: THIS IS THE 30 DAY REMINDER FOR SUSPENSION OF POES DATA TO USERS
AFTER JUNE 16, 2025.

UPDATE #1: CORRECTION TO SUBJECT LINE. ISSUED DATE IS APRIL 25, 2025

TOPIC:  SUSPENSION OF POES DATA TO USERS AFTER JUNE 16, 2025 AND
DECOMMISSIONING

DATE/TIME ISSUED: AUGUST 11, 2025 1200 UTC

PRODUCT(S) OR DATA IMPACTED:  ALL POES DATA PRODUCTS

DATE/TIME OF INITIAL IMPACT: JUNE 16, 2025 18:00 UTC

DATE/TIME OF EXPECTED END: NA

LENGTH OF OUTAGE:  PERMANENT - DECOMMISSIONING

DETAILS/SPECIFICS OF CHANGE:  NOAA WILL END DELIVERY OF ALL DATA FROM THE
POES CONSTELLATION (NOAA-15 AND NOAA-19) ON JUNE 16, 2025 AT 18:00 UTC.

AMSU-A1/A2/B - DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER
1800 UTC

APT/LRPT - SERVICE WILL BE LEFT ENABLED, BUT DO NOT USE THIS SERVICE FOR
OPERATIONAL USE

HRPT - SERVICE WILL BE LEFT ENABLED FOR DIAGNOSTIC FLIGHT USE ONLY (NO
OPERATIONAL USE)

AVHRR -   DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER 1800 UTC

DCS/ADCS (ARGOS) - SERVICE WILL BE LEFT ENABLED AS BEST EFFORT ONLY

HIRS - DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER 1800 UTC

SARR (SARSAT) -  SERVICE WILL BE LEFT ENABLED AS BEST EFFORT ONLY

SEM - DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER 1800 UTC

MHS - DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER 1800 UTC

SBUV - DATA WILL NO LONGER BE AVAILABLE AFTER JUN 16, 2025 AFTER 1800 UTC

IN THE INTERIM, ALL USERS SHOULD MAKE PLANS TO DISCONTINUE USE OF POES DATA
FROM NOAA-15 AND NOAA-19 AS THESE DATA AND SERVICES WILL NO LONGER BE MADE
AVAILABLE AFTER JUN 16, 2025 1800 UTC.

FURTHER UPDATES REGARDING POES WILL BE PROVIDED AS THE JUNE 16, 2025 DATE
APPROACHES.

CONTACT FOR FURTHER INFORMATION: PLEASE EMAIL USER SERVICES AT
SPSD.USERSERVICES@NOAA.GOV



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