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NOUS71 KNES 221549
ADANES
SUBJECT: PRODUCT OUTAGE/ANOMALY: CORRECTION UPDATE #1 - FINAL UPDATE
FL4 LEO
 GROUND STATION OFFLINE, ISSUED: MAY 22, 2025 1415Z
TO: ESPC.NOTIFICATION@NOAA.GOV
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*CORRECTION: ADDED THE UPDATE:*


*UPDATE #1 FINAL UPDATE:  *COMMUNICATION WAS RESTORED AFTER THE
LUT VENDOR
RESTARTED THE COMM SERVER AT THE LEOLUT. THE ISSUE IS RESOLVED, AND THE
VENDOR IS INVESTIGATING THE ROOT CAUSE.



*TOPIC:*  SARSAT FL4 LOW EARTH ORBIT (LEO) GROUND STATION OFFLINE


*DATE/TIME ISSUED: * MAY 22, 2025 1415Z


*PRODUCT(S) OR DATA IMPACTED:* SARSAT ALERT DATA


*DATE/TIME OF INITIAL IMPACT:*   MAY 17, 2025 2305Z


*DATE/TIME OF EXPECTED END: * MAY 21, 2025 2149Z


*LENGTH OF OUTAGE: * 3 DAYS, 22 HOURS AND 44 MINUTES.


*DETAILS/SPECIFICS OF CHANGE:  *THE FL4 LEO GROUND STATION IS NOT
SENDING
PASS SOLUTION DATA. THE LUT VENDOR IS INVESTIGATING.


*IMPACT: *MINOR-DUAL SATELLITE TRACKING CAPABILITY LOST. DISTRESS ALERT
DETECTION/REPORTING TIMELINESS AFFECTED.


*CONTACT INFORMATION FOR FURTHER INFORMATION: *USMCC OPERATIONS
USMCC@NOAA.GOV AT
301-817-4576


THIS NOTIFICATION WAS SENT TO ESPC.NOTIFICATION@NOAA.GOV MAILING
LIST. IF
YOU WISH TO UNSUBSCRIBE OR SUBSCRIBE TO THIS LIST, PLEASE CONTACT ESPC
HELP-DESK AT ESPCOPERATIONS@NOAA.GOV WITH YOUR REQUEST. PLEASE NOTE:
IT MAY
TAKE UP TO TWO BUSINESS DAYS TO PROCESS YOUR REQUEST. FOR ANY
ADDITIONAL
INFORMATION YOU CAN REACH ESPC AT 301-817-3880 (24X7)

--0000000000008F0A940635BA1E2B
CONTENT-TYPE: TEXT/HTML; CHARSET="UTF-8"
CONTENT-TRANSFER-ENCODING: QUOTED-PRINTABLE

CORRE=
CTION: ADDED THE UPDATE:

=
UPDATE=C2=A0#1=C2=A0FINAL=C2=A0UPDATE:=C2=A0=C2=A0COMMUNICATION WAS RESTORED AFTER THE LUT VENDOR RESTARTED
THE CO=
MM SERVER AT THE LEOLUT. THE ISSUE IS RESOLVED, AND THE VENDOR IS
INVESTIGA=
TING=C2=A0THE ROOT CAUSE.


TOPIC:=C2=A0 SARSAT FL4 LOW EARTH
ORBIT (L=
EO) GROUND STATION OFFLINE

DATE/TIME ISSUED:=C2=A0=C2=A0MAY
22, 2025=
 1415Z

=
PRODUCT(S)
OR DATA IMP=
ACTED:=C2=A0=C2=A0SARSAT=C2=A0ALERT DATA

DATE/TIME OF INITIAL IMPACT:=C2=A0 =C2=A0 MAY 17,
2025 =
2305Z

<=
P CLASS=3D"MSONORMAL" STYLE=3D"FONT-SIZE:12.8PX">DATE/TIME OF
EXPECTED E=
ND:=C2=A0=C2=A0MAY 21, 2025 2149Z

LENGTH OF=C2=A0OUTAGE:=C2=A0=C2=A03 DAYS, 22 HOURS AND
44 MINU=
TES.

DETAILS/SPECIFICS
 OF CHA=
NGE:=C2=A0=C2=A0THE=C2=A0FL4 LEO=C2=A0GROUND STATION IS
NOT SEND=
ING PASS SOLUTION DATA. THE LUT VENDOR IS INVESTIGATING.

IMPACT:=C2=A0MINOR-DUAL SATELLITE
TRACKING =
CAPABILITY LOST. DISTRESS ALERT DETECTION/REPORTING TIMELINESS
AFFECTED.

CONTACT INFORMATION FOR FURTHER
INFORM=
ATION:=C2=A0USMCC OPERATIONS=C2=A0USMCC@NOAA.GOV=C2=A0AT=
=C2=A0
301-817-4576
=

THIS NOTIFICATION WAS SENT
TO=C2=A0ESPC.NOTIFICATION@NOAA.GOV=C2=A0MAILING
 LIST. IF YO=
U WISH TO UNSUBSCRIBE OR SUBSCRIBE TO THIS LIST, PLEASE CONTACT
ESPC HELP-D=
ESK AT=C2=A0ESPCOPERATIONS@=
NOAA.GOV=
=C2=A0W=
ITH YOUR REQUEST. PLEASE NOTE: IT MAY TAKE UP TO TWO
BUSINESS=C2=A0DAYS=C2=
=A0TO PROCESS YOUR REQUEST. FOR ANY ADDITIONAL INFORMATION YOU CAN
REACH ES=
PC AT 301-817-3880 (24X7)

--0000000000008F0A940635BA1E2B--


=