600 

NOUS72 KNES 301019

ADMNES

TOPIC: SENTINEL-6A SERVICE







*DATE/TIME ISSUED: *DECEMBER 30, 2025 1010Z







PRODUCT(S) OR DATA IMPACTED: SENTINEL-6A SERVICE





DATE/TIME OF INITIAL IMPACT: DECEMBER 28, 2025 2302Z







*DATE/TIME OF EXPECTED END: *DECEMBER 29, 2025 0121Z







*LENGTH OF THE OUTAGE/EVENT: *2 HOURS, 19 MINUTES





MESSAGE NUMBER: 13966

MESSAGE CREATION: TUE DEC 30 09:50:25 UTC 2025

TYPE: SERVICE ALERT

ANN NR: 12925

REV: 3

START TIME: 2025-12-28 23:02:00.0

END TIME: 2025-12-29 01:21:00.0

SATELLITES: SENTINEL-6A

SUBJECT: GROUND-SEGMENT-ANOMALY

IMPACT: DATA-UNAVAILABLE

DETAIL: NRT PRODUCTS HAVE A GAP FROM 23:02 TO 01:12. STC AND NTC PRODUCTS

HAVE A GAP FROM 23:02 TO 01:21. NOMINAL SERVICE HAS BEEN RESUMED.

REVISION HISTORY: [ORIGINAL] INVESTIGATION IS ONGOING. [REV.1] [REV.2]

STATUS: RECOVERED

ISSUE TIME: 2025-12-30 09:48:50.0

SERVICES: NRT P4 HR L2P (SLA) - S6A

STC ALTIMETRY HR L1A PRODUCTS - S6A

STC ALTIMETRY HR L1B PRODUCTS - S6A

STC ALTIMETRY HR L2 PRODUCTS - S6A

NTC ALTIMETRY HR L2 PRODUCTS - S6A

STC P4 HR L3 (SLA) - S6A

NTC ALTIMETRY HR L1A PRODUCTS - S6A

NTC ALTIMETRY HR L1B PRODUCTS - S6A

NTC P4 HR L2P (SLA) - S6A

NTC P4 HR L3 (SLA) - S6A

NRT ALTIMETRY HR L2 PRODUCTS - S6A

STC P4 HR L2P (SLA) - S6A



NAME: EUMETSAT

ADDRESS: EUMETSAT-ALLEE 1

D-64295 DARMSTADT

GERMANY

TELEPHONE: +49 6151 807 3660/3770

FAX: +49 6151 807 3790

E-MAIL: OPS@EUMETSAT.INT

USER PORTAL: HTTPS://USER.EUMETSAT.INT



YOU ARE RECEIVING THIS EMAIL BECAUSE YOU ARE SUBSCRIBED TO OUR USER

NOTIFICATION SERVICE (UNS). YOU CAN MODIFY YOUR UNS SUBSCRIPTIONS OR

UNSUBSCRIBE AT ANY TIME VIA OUR USER PORTAL (HTTPS://USER.EUMETSAT.INT) OR

VIA THE UNS WEB INTERFACE (LOGIN TO OUR USER PORTAL REQUIRED).



=