Subject: Update #1 GOES-13 SPS (Sensor Processing System) Software This is a multi-part message in MIME format. --Boundary_(ID_C7XFAJ/hpAOGXDba/8W2MA) Content-type: text/plain; charset=UTF-8; format=flowed Content-transfer-encoding: 8BIT *Update:* #1 We have found an operational bug with the SPS 10.4.1 on the Operations side and postponing implementation on GOES-13 until further notice. We are not sure of the root cause and will know much more about it in a day or two to make a decision on a new roll-out date. GOES-15 operations with SPS 10.4.1 are not affected at this time. On 4/17/2014 2:14 PM, Hyre Bysal - NOAA Federal wrote: > ESPC - Please send this out to your user distribution. > > Product(s) or Data Impacted: GOES-13 (GOES-East) Imager and Sounder data > > Date/Time of Initial Impact: April 22, 2014 1535 UTC > > Date/Time of Expected End: Permanent change > > Length of Outage: Permanent change > > Details/Specifics of Change: On April 22, 2014, a new Sensor > Processing System (SPS) software version > (10.4.1) will be released for GOES-13 (GOES-East). The new SPS release > 10.4.1 replaces version 10.2 and > corrects the following issues observed with GOES-13 imager and sounder. > > 1. GOES-13 (GOES-East) IR Channels 2 (3.9 um) and 4 (10.7 um) > registration difference was discovered > to be 1 pixel or greater at certain times of day. This can cause false > fog data which uses the difference > between these two channels. A registration correction algorithm was > developed into SPS v10.4.1 which > shifts one of these channels towards the other based on whichever is > closer to visible channel. When > channel-2 needs correction (GOES-13) it is shifted one full pixel > whenever the difference is more than > 0.5 pixel. When channel-4 needs correction (GOES-14), the data are > re-sampled to make a full correction > so the two channels’ registration better match. > > 2. GOES-13 (GOES-East) Sounder Dropped Pixel Correction > The last significant element to be included in this software release > is the implementation of an algorithm > which utilizes a second sync-bit code if the first is not found. This > algorithm will allow the software to > recover what was previously considered as lost data blocks which are > depicted as missing pixels (black > spots) since July 2013. > > Contact Information for Further Information: ESPC Operations at > ESPCOperations@noaa.gov at 301-817- > 3880 > > Web Site(s) for applicable information: > See http://www.ospo.noaa.gov/Operations/GOES/documents.html for more > specific information and > related documents. > > See http://cimss.ssec.wisc.edu/goes/blog/archives/10341 for more > details on the Imager co- > registration. > > See http://cimss.ssec.wisc.edu/goes/blog/archives/15184 for more > details on the Sounder dropped > pixel recovery. > > Thank you, > Hyre Bysal > GOES Instrument Operations Lead > Office (301) 817-4088 > Mobile (301) 830-1858 > -- Hyre Bysal GOES Instrument Operations Lead Office (301) 817-4088 Mobile (301) 830-1858 --Boundary_(ID_C7XFAJ/hpAOGXDba/8W2MA) Content-type: text/html; charset=UTF-8 Content-transfer-encoding: 8BIT Update: #1 We have found an operational bug with the SPS 10.4.1 on the Operations side and postponing implementation on GOES-13 until further notice. We are not sure of the root cause and will know much more about it in a day or two to make a decision on a new roll-out date. GOES-15 operations with SPS 10.4.1 are not affected at this time.

On 4/17/2014 2:14 PM, Hyre Bysal - NOAA Federal wrote:

ESPC - Please send this out to your user distribution.

Product(s) or Data Impacted: GOES-13 (GOES-East) Imager and Sounder data

Date/Time of Initial Impact: April 22, 2014 1535 UTC

Date/Time of Expected End: Permanent change

Length of Outage: Permanent change

Details/Specifics of Change: On April 22, 2014, a new Sensor Processing System (SPS) software version

(10.4.1) will be released for GOES-13 (GOES-East). The new SPS release 10.4.1 replaces version 10.2 and

corrects the following issues observed with GOES-13 imager and sounder.

1. GOES-13 (GOES-East) IR Channels 2 (3.9 um) and 4 (10.7 um) registration difference was discovered

to be 1 pixel or greater at certain times of day. This can cause false fog data which uses the difference

between these two channels. A registration correction algorithm was developed into SPS v10.4.1 which

shifts one of these channels towards the other based on whichever is closer to visible channel. When

channel-2 needs correction (GOES-13) it is shifted one full pixel whenever the difference is more than

0.5 pixel. When channel-4 needs correction (GOES-14), the data are re-sampled to make a full correction

so the two channels’ registration better match.

2. GOES-13 (GOES-East) Sounder Dropped Pixel Correction

The last significant element to be included in this software release is the implementation of an algorithm

which utilizes a second sync-bit code if the first is not found. This algorithm will allow the software to

recover what was previously considered as lost data blocks which are depicted as missing pixels (black

spots) since July 2013.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-

3880

Web Site(s) for applicable information:

See http://www.ospo.noaa.gov/Operations/GOES/documents.html for more specific information and

related documents.

See http://cimss.ssec.wisc.edu/goes/blog/archives/10341 for more details on the Imager co-

registration.

See http://cimss.ssec.wisc.edu/goes/blog/archives/15184 for more details on the Sounder dropped

pixel recovery.

Thank you,

Hyre Bysal
GOES Instrument Operations Lead
Office (301) 817-4088
Mobile (301) 830-1858

--
Hyre Bysal
GOES Instrument Operations Lead
Office (301) 817-4088
Mobile (301) 830-1858

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