028
NOUS71 KNES 292204
ADANES
SUBJECT: PRODUCT ANOMALY/OUTAGE: UPDATE#1 GPS INVALID ON S-NPP
SPACECRAFT
 ISSUED MAY 29 2024 2108Z
TO: ESPC.NOTIFICATION@NOAA.GOV
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--0000000000004C2E1F06199E277E
CONTENT-TYPE: TEXT/PLAIN; CHARSET="UTF-8"

UPDATE #1: PDA OPS SUBSCRIPTION FOR ALL S-NPP OMPS LIMB PROFILE (LP)
PRODUCTS INCLUDING BLENDED LTOAST PRODUCTS WILL BE DISABLED AT 21:00
UTC ON
MAY 29TH, 2024.


USERS ARE ADVISED THAT THESE S-NPP LIMB PRODUCTS HAVE BEEN DEGRADED
SINCE
MAY 25TH, 2024.


AS S-NPP HIGH RATE DATA (HRD) REMAINS ENABLED FOR OMPS LP PRODUCTS,
DIRECT
BROADCAST (DB) USERS ARE ADVISED THAT THIS S-NPP OMPS LP SCIENCE
DATA IS
NOT YET CLEARED FOR OPERATIONAL USE.



TOPIC: GPS INVALID ON S-NPP SPACECRAFT

DATE/TIME ISSUED: MAY 29, 2024 2108Z



PRODUCT(S) OR DATA IMPACTED: ALL S-NPP VIIRS DATA PRODUCTS



DATE/TIME OF INITIAL IMPACT: MAY 25, 2024 22:30 UTC

DATE/TIME OF EXPECTED END TIME:   TBD

DURATION: TBD

DETAILS: STARTING ON MAY 25 AT ~22:30 UTC, THE GPS ON THE S-NPP
SPACECRAFT
TOGGLED TO INVALID CAUSING THE GEOLOCATION OF ALL OBSERVED DATA TO BE
INACCURATE AND OUT OF THE MISSION SPECIFICATIONS. ENGINEERING HAS
STARTED
PLANNING THE EXECUTION OF THE RESET OF THE GPS UNIT ON THE S-NPP
SPACECRAFT. THE ANTICIPATED RESET OF THE GPS UNIT IS EXPECTED NO
EARLIER
THAN MAY 29, 2024. ALL PDA OPS SUBSCRIPTIONS FOR ALL S-NPP VIIRS
SCIENCE
PRODUCTS WILL BE DISABLED AT 17:00 UTC ON MAY 28, 2024.

AS S-NPP HIGH RATE DATA (HRD) REMAINS ENABLED FOR ALL VIIRS PRODUCTS,
DIRECT BROADCAST (DB) USERS ARE ADVISED THAT THIS S-NPP VIIRS
SCIENCE DATA
IS NOT YET CLEARED FOR OPERATIONAL USE.

THE NOAA-21 AND NOAA-20 SATELLITES WILL CONTINUE TO PROVIDE JPSS VIIRS
SCIENCE DATA AS THE PRIMARY AND SECONDARY SATELLITES, RESPECTIVELY.



*CONTACT INFORMATION FOR FURTHER INFORMATION:* ESPC OPERATIONS AT
ESPCOPERATIONS@NOAA.GOV AT 301-817-3880



*WEB SITE(S) FOR APPLICABLE INFORMATION:* N/A

THIS MESSAGE WAS SENT BY ESPC.NOTIFICATION@NOAA.GOV. YOU HAVE BEEN SENT
THIS AND OTHER NOTIFICATIONS BECAUSE YOU HAVE OPTED IN TO RECEIVE
IT. IF
FOR ANY REASON, YOU WISH TO UNSUBSCRIBE, PLEASE CONTACT ESPC HELP
DESK AT
ESPCOPERATIONS@NOAA.GOV OR (301) 817-3880. PLEASE NOTE: IT MAY TAKE
UP TO
TWO BUSINESS DAYS TO PROCESS YOUR UNSUBSCRIBE REQUEST.

--0000000000004C2E1F06199E277E
CONTENT-TYPE: TEXT/HTML; CHARSET="UTF-8"
CONTENT-TRANSFER-ENCODING: QUOTED-PRINTABLE

UPDATE #1:=C2=A0PDA OPS SUBSCRIPTION
FOR ALL =
S-NPP OMPS LIMB PROFILE (LP) PRODUCTS INCLUDING BLENDED LTOAST
PRODUCTS WIL=
L BE DISABLED AT 21:00 UTC ON MAY 29TH, 2024.

USERS
ARE ADVISE=
D THAT THESE S-NPP LIMB PRODUCTS HAVE BEEN DEGRADED SINCE MAY 25TH,
2024.

AS S-NPP HIGH RATE DATA (HRD) REMAINS ENABLED FOR OMPS
LP PRODU=
CTS, DIRECT BROADCAST (DB) USERS ARE ADVISED THAT THIS S-NPP OMPS
LP SCIENC=
E DATA IS NOT YET CLEARED FOR OPERATIONAL USE.


TOPIC:=
=C2=A0GPS INVALID ON S-NPP SPACECRAFT=C2=A0

DATE/TIME ISSUED: MAY 29, 2024=C2=A0
2108Z
<=
P DIR=3D"LTR"
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NT-VARIANT-ALTERNATES:NORMAL;VERTICAL-ALIGN:BASELINE">=C2=
=A0
PRODUCT(S) OR DATA
IMPACTED:=C2=A0ALL S-NPP
VIIRS DATA=
 PRODUCTS
=C2=A0
DATE/TIME
OF I=
NITIAL IMPACT:=C2=A0MAY 25, 2024 22:30 UTC

=
=
DATE/TIME OF EXPECTED END TIME:=C2=A0=C2=A0 TBD

DURATION:=C2=A0TBD

=
DETAILS:=C2=A0STARTING ON MAY 25 AT ~22:30 UTC, THE GPS ON
THE S-NPP=
 SPACECRAFT TOGGLED TO INVALID CAUSING THE GEOLOCATION OF ALL
 OBSERVED DATA=
 TO BE INACCURATE AND OUT OF THE MISSION SPECIFICATIONS. ENGINEERING
 HAS ST=
ARTED PLANNING THE EXECUTION OF THE RESET OF THE GPS UNIT ON THE
S-NPP SPAC=
ECRAFT. THE ANTICIPATED RESET OF THE GPS UNIT IS EXPECTED NO EARLIER
THAN M=
AY 29, 2024. ALL PDA OPS SUBSCRIPTIONS FOR ALL S-NPP VIIRS SCIENCE
PRODUCTS=
 WILL BE DISABLED AT 17:00 UTC ON MAY 28,
 2024.=C2=A0

AS S-NPP HIGH RATE DATA (HRD) REMAINS ENABLED
FOR ALL =
VIIRS PRODUCTS, DIRECT BROADCAST (DB) USERS ARE ADVISED THAT THIS
S-NPP VII=
RS SCIENCE DATA IS NOT YET CLEARED FOR OPERATIONAL
USE.

THE NOAA-21 AND NOAA-20 SATELLITES WILL CONTINUE
TO =
PROVIDE JPSS VIIRS SCIENCE DATA AS THE PRIMARY AND SECONDARY
SATELLITES, RE=
SPECTIVELY.


CONTACT INFORMATION FOR FURTHER
INFORMATION:=C2=A0ESPC
 OPER=
ATIONS AT=C2=A0ESPCOPERATIONS@NOAA.GOV=C2=A0AT 301-817-3880
=C2=A0
WEB SITE(S) FOR APPLICABLE
INFORMATION:=
=C2=A0N/A<=
/SPAN>
THIS MESSAGE
WAS SENT=
 BY=C2=A0ES=
PC.NOTIFICATION@NOAA.GOV. YOU HAVE BEEN SENT THIS AND OTHER
NOTIFICATIO=
NS BECAUSE YOU HAVE OPTED IN TO RECEIVE IT. IF FOR ANY REASON, YOU
WISH TO =
UNSUBSCRIBE, PLEASE CONTACT ESPC HELP DESK AT=C2=A0ESPCOPERATIONS@NOAA.GOV=C2=A0OR (3=
01) 817-3880. PLEASE NOTE: IT MAY TAKE UP TO TWO BUSINESS DAYS TO
PROCESS Y=
OUR UNSUBSCRIBE
REQUEST.
<=
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IF">



--0000000000004C2E1F06199E277E--


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