Subject: Product Outage/Anomaly:UPDATE #2 VIIRS Anomaly, Issued:
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*Update #2*
On 2014-02-04 at 17:37 UTC VIIRS stopped outputting science data.
At 18:04:57 UTC (AOS SVL 11781) controllers reported multiple VIIRS
and 1394 bus alarms to engineers. During the back orbit engineering
verified the state of the VIIRS instrument and began preparations
for recovery.
The VIIRS Petulant Mode recovery was executed during SVL 11782, 11783,
and 11784. Science data resumed at 21:35:02 but may be degraded for
multiple orbits due to temperature variations.
All VIIRS DNB data will be degraded prior to SVL 11784 when the VIIRS
DNB tables were loaded.
*Update #1*
SOCC has begun the recovery procedure and we have power cycled
VIIRS.The VIIRS instrument is currently in safe mode and we will
continue to bring it up to ops mode. We will continue to update
everyone
as we progress along.
*
Topic:*VIIRS Anomaly
*Date/Time Issued*: February 5, 2014 0040 UTC
*Product(s) or Data Impacted: *VIIRS
*Date/Time of Initial Impact:* February 4 2014 17:37 UTC
*
Date/Time of Expected End *21:35 UTC
*Length of Outage: *4 Hours
*Details/Specifics of Change:* The VIIRS science data stopped at
17:37:44 due to anomaly, staff is currently investigating.
*Contact Information for Further Information:* ESPC Operations at
ESPCOperations@noaa.gov and 301-817-3880*
Web Site(s) for applicable information:* N/A
You have been sent this and other notifications because you have opted
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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
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Update #2
On 2014-02-04 at 17:37 UTC VIIRS stopped outputting
science data.
At 18:04:57 UTC (AOS SVL 11781) controllers reported multiple VIIRS
and 1394 bus alarms to engineers. During the back orbit engineering
verified the state of the VIIRS instrument and began preparations
for recovery.
The VIIRS Petulant Mode recovery was executed during SVL 11782, 11783,
and 11784. Science data resumed at 21:35:02 but may be degraded for
multiple orbits due to temperature variations.
All VIIRS DNB data will be degraded prior to SVL 11784 when the VIIRS
DNB tables were loaded.
Update #1
SOCC has begun the recovery procedure and we have power
cycled
VIIRS.The VIIRS instrument is currently in safe mode and we will
continue to bring it up to ops mode. We will continue to update
everyone as we progress along.
Topic:VIIRS
Anomaly
Date/Time Issued: February 5, 2014 0040 UTC
Product(s) or Data Impacted: VIIRS
Date/Time of Initial Impact: February 4 2014
17:37 UTC
Date/Time of Expected End 21:35 UTC
Length of Outage: 4 Hours
Details/Specifics of Change: The VIIRS
science data stopped at 17:37:44 due to anomaly, staff is
currently investigating.
Contact Information for Further
Information:
ESPC Operations at ESPCOperations@noaa.gov
and 301-817-3880
Web Site(s) for applicable information: N/A
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.
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