[IGSMAIL-8755] UPDATE: re: 1st Reminder - CDDIS Outage - 22 Sep 2026 - 1330-1530 UTC

[Michael, Benjamin P {Patrick} (GSFC-61A0)]

All,

The initial outage was extended due to difficulties with the network fabric above the CDDIS level.  We hope to have all services back to fully operational by 15:30 EST, 19:30 UTC.  We apologize for this.

R
Pat

[cid:image001.png at 01DD0550.DEA74690]<https://www.nasa.gov/>

Patrick Michael
Manager, Crustal Dynamics Data Information System (CDDIS)
Geodesy and Geophysics Laboratory
NASA Goddard Space Flight Center
Code 61A
8800 Greenbelt Rd, Greenbelt, MD 20771
M: 301.606.1416 (p)
M: 301.256.2640 (w)
O: 301.614.5370
Patrick.Michael at nasa.gov<mailto:Patrick.Michael at nasa.gov>
From: Michael, Benjamin P {Patrick} (GSFC-61A0) <benjamin.p.michael at nasa.gov>
Date: Wednesday, September 16, 2026 at 08:51
To: igsmail at lists.igs.org <igsmail at lists.igs.org>; ilrs at lists.nasa.gov <ilrs at lists.nasa.gov>; ivsmail at lists.nasa.gov <ivsmail at lists.nasa.gov>; dorismail at ids-doris.org <dorismail at ids-doris.org>
Subject: 1st Reminder - CDDIS Outage - 22 Sep 2026 - 1330-1530 UTC

This is the first reminder of the upcoming CDDIS outage on 22 Sep 2026.  The original announcement is below.

BLUF:
What:  CDDIS Outage
Date:  22 Sep 2026
Time:  1330-1530 UTC, 0930-1130 EDT
Reason:  Network upgrades
Activities affected:  All CDDIS file ingest and distribution services will be unavailable. GNSS real-time services are unaffected.
Questions or concerns please address to:  support-cddis at nasa.gov<mailto:support-cddis at nasa.gov>

We recognize the critical importance of CDDIS to your work and deeply apologize for this outage. As this is a brief maintenance window, it falls below our threshold for failover activation to our disaster recovery site. We expect this work will be completed well within the posted two-hour window. Please direct any concerns to our ticketing system.

R
Pat

[cid:image001.png at 01DD0550.DEA74690]<https://www.nasa.gov/>

Patrick Michael
Manager, Crustal Dynamics Data Information System (CDDIS)
Geodesy and Geophysics Laboratory
NASA Goddard Space Flight Center
Code 61A
8800 Greenbelt Rd, Greenbelt, MD 20771
M: 301.606.1416 (p)
M: 301.256.2640 (w)
O: 301.614.5370
Patrick.Michael at nasa.gov<mailto:Patrick.Michael at nasa.gov>
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