Subject: Satellite Outage/Anomaly: Update #12 GOES-15 degradation
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********Update #12: ********As of 2000z May 8, Star Tracker 2 on
GOES-15
remains offline. GOES-15 remains fully operational as GOES-WEST,
utilizing a single star tracker to maintain attitude control.
Navigation accuracy remains within specifications (64 microradians/~2.3
km on the ground) 95% of the time compared with 99.7% in normal (two
star tracker) operations. Impacts to supported customers is minor,
though the navigation errors are occasionally noticeable on imagery.
NOAA, NASA, and factory engineers continue to analyze Star Tracker 2 in
order to identify the cause of the anomaly and determine if the star
tracker can be returned to service. Testing has continued this week,
exercising portions of the instrument and analyzing the resulting data
dumps to determine what portions of the instrument are functional and
home in on the root cause.
Due to Critical Weather Day being declared through May 12 at 1200
UTC, a
scheduled reset of the instrument was postponed from Monday May 11 to
Tuesday May 12. Because of Critical Weather, no testing or commanding
of the instrument will be performed before Tuesday, May 12. In the
absence of a significant change in status, no updates will be published
over the weekend.********
Update #11: ********As of 2100z May 1, 2015, Star Tracker 2 on GOES-15
remains offline.GOES-15 remains fully operational as GOES-WEST,
utilizing a single star tracker to maintain attitude control.Product
accuracy continues to remain within specifications.
The Engineering team has stood down for the weekend.No status updates
will be issued over the weekend unless an event which affects users or
data products occurs.
The Engineering Team is participating in a Continuity of Operations
(COOP) exercise next week, which limits their availability.In the
absence of any issues affecting users or data products, the next status
update will be issued Tuesday (May 5) evening.********
Update #10: ********As of 1500z Apr 29, Star Tracker 2 on GOES-15
remains offline.GOES-15 remains fully operational as GOES-WEST,
utilizing a single star tracker to maintain attitude control.Product
accuracy continues to remain within specifications.
NOAA, NASA, and factory engineers continue to analyze Star Tracker 2 in
order to identify the root cause of the anomaly and determine if the
star tracker can be returned to service.
******
**Update #9: ****As of 1500z Apr 29, Star Tracker 2 on GOES-15 remains
offline.GOES-15 remains fully operational as GOES-WEST, utilizing a
single star tracker to maintain attitude control.Product accuracy
continues to remain within specifications.
NOAA, NASA, and factory engineers continue to analyze Star Tracker 2 in
order to identify the root cause of the anomaly and determine if the
star tracker can be returned to service. **
Update #8: **As of 1500z Apr 29, Star Tracker 2 on GOES-15 remains
offline.GOES-15 remains fully operational as GOES-WEST, utilizing a
single star tracker to maintain attitude control.Product accuracy
continues to remain within specifications.
**
Update #7:**As of 1500z Apr 29, Star Tracker 2 on GOES-15 remains
offline.GOES-15 remains fully operational as GOES-WEST, utilizing a
single star tracker to maintain attitude control.Product accuracy
continues to remain within specifications.
NOAA, NASA, and factory engineers continue to analyze Star Tracker 2 in
order to identify the root cause of the anomaly and determine if the
star tracker can be returned to service.
**
Update #6: **SOCC engineers are still investigating the anomaly.
**
Update #5 **SOCC engineers are still investigating the anomaly.
*
Update #4 *SOCC engineers are still investigating the anomaly.**
*
Update #3: *SOCC engineers are working on the anomaly and will resume
their efforts on Monday April 27, 2015.*
Update #2:*SOCC engineers are still investigating the anomaly.*
Update #1: *SOCC engineers are still investigating the anomaly.*
Topic: GOES-15*Degradation*
Date/Time**Issued:***May 8, 2015 2153 UTC*
*
*Product(s) or Data Impacted:*All GOES 15 images
**
*Date/Time of Initial Impact:***April 23, 2015 2100 UTC*
*
*Date/Time of Expected End:***TBD*
***
*Length of Outage:*TBD*
*
*Details/Specifics of Change:**
*
GOES-15 star tracker fault trip occurred at 2032 UTC on April 23,
2015.
GOES West imaging schedule is still running at this time but users will
experience degraded navigation performance. SOCC engineers are
currently investigating the anomaly.*
*
*Contact Information for Further Information:* ESPC Operations at
ESPCOperations@noaa.gov at 301-817-3880 and/or other contacts as
necessary**
*Web Site(s) for applicable information:*n/a
This message was sent by ESPC.Notification@noaa.gov. You have been sent
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Update
#12: As
of 2000z
May 8, Star Tracker 2 on GOES-15 remains offline.
GOES-15 remains
fully operational as GOES-WEST, utilizing a single star
tracker to
maintain attitude control. Navigation accuracy remains
within
specifications (64 microradians/~2.3 km on the ground) 95% of the
time compared with 99.7% in normal (two star tracker)
operations.
Impacts to supported customers is minor, though the navigation
errors are occasionally noticeable on imagery.
NOAA, NASA, and factory engineers continue to
analyze Star Tracker 2 in order to identify the cause of the
anomaly and determine if the star tracker can be returned to
service. Testing has continued this week, exercising
portions of
the instrument and analyzing the resulting data dumps to
determine
what portions of the instrument are functional and home in on the
root cause.
Due to Critical Weather Day being declared through May 12 at 1200
UTC, a scheduled reset of the instrument was postponed from Monday
May 11 to Tuesday May 12. Because of Critical Weather,
no testing
or commanding of the instrument will be performed before Tuesday,
May 12. In the absence of a significant change in status, no
updates will be published over the weekend.
Update #11:
As of
2100z May 1, 2015, Star Tracker 2 on GOES-15 remains offline.GOES-15 remains fully
operational as GOES-WEST, utilizing a single star tracker to
maintain attitude control.Product
accuracy continues to remain within specifications.
The Engineering team has stood down for the weekend.No status updates will be
issued over the weekend unless an event which affects users or data
products occurs.
The Engineering Team is participating in a Continuity of Operations
(COOP) exercise next week, which limits their availability.In the absence of
any issues
affecting users or data products, the next status update will be
issued Tuesday (May 5) evening.
Update #10: As
of 1500z Apr 29, Star Tracker 2 on GOES-15 remains
offline.GOES-15
remains fully operational as GOES-WEST, utilizing a
single star tracker to maintain attitude
control.Product
accuracy continues to remain within
specifications. NOAA,
NASA, and factory engineers continue to analyze
Star
Tracker 2 in order to identify the root cause
of the
anomaly and determine if the star tracker can be
returned to service.
Update #9: As of 1500z Apr 29, Star Tracker 2 on GOES-15
remains offline.GOES-15
remains fully operational as GOES-WEST, utilizing a single
star tracker to maintain attitude control.Product accuracy
continues to remain within
specifications. NOAA,
NASA, and factory engineers continue to analyze Star
Tracker
2 in order to identify the root cause of the anomaly and
determine if the star tracker can be returned to
service.
Update #8: As of 1500z Apr 29, Star Tracker 2 on
GOES-15 remains offline.GOES-15
remains fully operational as GOES-WEST, utilizing a single star
tracker to maintain attitude control.Product accuracy
continues
to remain within specifications.
Update #7:As of 1500z Apr 29, Star Tracker 2 on GOES-15
remains offline.GOES-15
remains fully operational as GOES-WEST, utilizing a single star
tracker to maintain attitude control.Product accuracy continues to remain within
specifications.
NOAA, NASA, and factory engineers continue to
analyze Star Tracker 2 in order to identify the root cause of the
anomaly and determine if the star tracker can be returned to
service.
Update #6: SOCC engineers
are still investigating the anomaly.
Update #5 SOCC engineers are still investigating
the anomaly.
Update #4 SOCC engineers are still investigating the
anomaly.
Update #3: SOCC engineers are working on the
anomaly and will resume their efforts on Monday April 27,
2015.
Update #2:SOCC
engineers are still investigating the anomaly.
Update #1: SOCC engineers are still
investigating the anomaly.
Topic: GOES-15 Degradation
Date/Time Issued:May 8, 2015 2153 UTC
Product(s) or Data Impacted: All GOES 15 images
Date/Time of Initial Impact:April 23, 2015 2100 UTC
Date/Time of Expected End:TBD
Length of Outage:TBD
Details/Specifics of Change:
GOES-15 star tracker fault trip
occurred at
2032 UTC on April 23, 2015. GOES West imaging schedule is still
running at this time but users will experience degraded
navigation
performance. SOCC engineers are currently investigating the
anomaly.
Contact Information for Further
Information:
ESPC Operations at ESPCOperations@noaa.gov
at 301-817-3880 and/or other contacts as necessary
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.