Update #20: At 17:58 UTC Oct 30, 2023, NOAA-19 72-hour testing of the POES EL (Extended Life) ground system was successfully completed. All the testing L1b data was made available for PDA to distribute. NOAA-19 will be operated continuously by OSPO/ESPC. The NOAA-19 data will continue to be processed and distributed. Transition of the OSPO/POES Operations to the POES EL (Extended Life) ground system is expected by the end of this week.  ESPC notice will follow.


Update #19:  NOAA-19 testing from 13:30 UTC OCT 27, 2023 to 17:58 UTC Oct 30, 2023 will result in data losses due to supporting POES EL (Extended Life) ground system testing.

NOAA-19 Expected Data Loss

Update #18:  NOAA-19 testing from 14:07 UTC OCT 24, 2023 to 18:59 UTC Oct 25, 2023 will result in data losses due to supporting POES EL (Extended Life) ground system testing.

NOAA-19 Expected Data Loss

 

Update #17: As of October 19 2023, NOAA-18 and NOAA-15 operations have transitioned into the POES Extended Life Ground System of which operates the POES Constellation in a best effort data of opportunity manner, with no data product quality or data delivery latency requirements. Both NOAA-18 and NOAA-15 images have been initially reviewed by NESDIS and appear valid, however data quality assessments remain ongoing. All distributed data may be used at the user's discretion. PDA data distribution is being scheduled for Monday October 23, 2023 at 1600 UTC.

Note: The release of NOAA-19 data is expected in the next few weeks and will be announced in the next update to this notice.

Note: Since October 9th, the NOAA-15 AVHRR Scan Drive Motor is now operating in a degraded manner and all AVHRR Products could incur scan line outages.

Update #16:  On October 10, 2023 at 16:09 UTC during rev 32172 the NOAA-15 satellite will be fully transitioned to Parsons (Command and Control) C2 Commercial Ground Services. This first transition of a POES satellite is an ongoing effort to extend the utility of the legacy POES satellite constellation by extending life through use of a commercial system called Ground Station as a Service (GSaaS) approach.  The data and products from NOAA-15 will not be distributed while data quality evaluations are ongoing - NOAA-15/18 data release is expected no earlier than the mid October 2023.   Direct readout data from NOAA-15 will continue to be made available to those users of that service. 

Update #15:  NOAA-19 testing from 16:32 UTC OCT 3, 2023 to 19:53 UTC Oct 4, 2023 will result in data losses due to supporting POES EL (Extended Life) ground system testing.

NOAA-19 Expected Data Loss

●       G3B 2038-276-15:01:00 - 2038-276-16:56:10

●       G1B 2044-276-16:50:15 - 2044-276-18:24:15

●       G2B 2045-276-18:18:20 - 2045-276-20:13:30

●       G3A 2049-276-20:07:35 - 2049-276-22:02:45

●       G2A 2050-276-21:56:50 - 2050-276-23:25:55

●       G4A 2051-276-23:20:00 - 2051-276-00:50:35

●       G5A 2057-277-00:44:40 - 2057-277-02:32:25

●       G1B 2060-277-02:26:30 - 2060-277-04:21:40

●       G2A 2063-277-04:15:45 - 2063-277-06:10:55

●       G1A 2066-277-06:05:00 - 2066-277-07:46:35

●       G3B 2067-277-07:40:40 - 2067-277-09:35:50

●       G2B 2071-277-09:29:55 - 2071-277-11:25:05

●       G3A 2072-277-11:19:10 - 2072-277-13:14:20

●       G2A 2073-277-13:08:25 - 2073-277-14:54:45

●       G5A 2074-277-14:48:50 - 2074-277-16:44:00

●       G4B 2080-277-16:38:05 - 2080-277-18:33:15

●       G3A 2081-277-18:27:20 - 2081-277-19:52:55

 

 

Update #14:  NOAA-15 testing from 13:19 UTC Sep 29, 2023 to 20:23 UTC Oct 2, 2023 will result in data losses due to supporting POES EL (Extended Life) ground system testing.

Expected Data Loss:

 

Update #13:  NOAA-15 testing from 13:24 UTC Sep 21, 2023 to 19:39 UTC Sep 22, 2023 will result in data losses due to supporting POES EL (Extended Life) ground system testing.

Expected Data Loss:

 

Update #12:  On September 11, 2023 at 16:20 UTC during rev 94379 the NOAA-18 satellite will be fully transitioned to Parsons (Command and Control) C2 Commercial Ground Services. This first transition of a POES satellite is an ongoing effort to extend the utility of the legacy POES satellite constellation by extending life through use of a commercial system called Ground Station as a Service (GSaaS) approach.  The data and products from NOAA-18 will not be distributed while  data quality evaluations are ongoing - NOAA-18 data release  is expected no earlier than the end of September 2023.   Direct readout data from NOAA-18 will continue to be made available to those users of that service. 

 

Updates #1 through #11 are found at the following ESPC archive page: search POES

General Satellite Messages

(https://www.ospo.noaa.gov/data/messages/2023/2023_include.html)


Topic: POES Data Outages - POES EL Transitions

Date/Time Issued:  July 13th 12, 2023 1645Z

Product(s) or Data Impacted: All NOAA-15/18/19 data and products

Date/Time of Initial Impact: May 1st, 2023 0000 UTC

Date/Time of Expected End:  September 15th, 2023 0000 UTC

Length of Outage:  Intermittent

Details/Specifics of Change: 

Polar Operational Environmental Satellites (POES) Extended Life (EL) is an NOAA initiative to extend the value of the older POES satellite constellation under a best-effort approach. Starting this year, POES data that was once operationally supported will migrate over to a data of opportunity service, as available.  Due to this new approach, contingency data recovery will not be performed and extended data disruptions could occur periodically because of operational constraints.

Shortly the POES Satellite Operations will be transitioning off the existing NOAA POES Ground System to a Commercial Ground System service.  The POES Constellation consists of NOAA-15, NOAA-18, and NOAA-19, now in an extended phase of their mission life, and will transition to this best-effort approach managed and operated by the new commercial ground system service.  The operations transition period will span from May 1st 2023 until September 15th 2023 during which time there will be intermittent and potentially daily data outages that can occur for specific POES satellites based on upcoming transition activities. Data outages will primarily affect Level 1 and higher products; however, Direct Broadcast Services (HRPT) will remain available for users as needed.

The notional schedule for each POES spacecraft transition starting to move over to the commercial ground system capabilities is identified below. POES satellite transitions will take notionally one month to complete for each satellite once started. All transition activities will complete by September 2023. Post September all users should access POES Data directly from HRPT when overhead of a users site or via NOAA Product Distribution and Access (PDA) for authorized users. All users should expect periodic interruptions to data as each satellite transitions to the new ground system

∙ NOAA-18 - May 2023

∙ NOAA-19 - July 2023

∙ NOAA-15 - August 2023

Contact Information for Further Information:

ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880, and User Services at SPSD.Userservices@noaa.gov 

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