Subject: Administrative: GOES-15 Sounder Patch Change to LOW on This is a multi-part message in MIME format. --Boundary_(ID_il/OHjAFY4UsedSGfcZQSA) Content-type: text/plain; charset=utf-8; format=flowed Content-transfer-encoding: 7BIT *Topic:* GOES-15 Sounder IR Detector Temp. Change Product Impact, 4/14/2017, 21:-22:00Z *Date/Time Issued:* April 12, 2017 2028Z *Product(s) or Data Impacted:* GOES-15 (GOES-West) Sounder Data *Date/Time of Initial Impact:* April 14, 2017, at approximately 21:01Z *Date/Time of Expected End:* April 14, 2017, at approximately 22:00Z *Length of Outage:* N/A *Details/Specifics of Change: *On April 14, 2017, SOCC Engineers will change the GOES-15 Sounder patch temperature from its MID set point (85 K) to its LOW set-point (82 K) starting around 20:38Z (16:38 am EDT) just after the Hawaii Short frame. The temperature transition will take approximately 70-80 minutes. The soundings taken during the temperature transition WILL be affected and show signs of striping and banding which will decrease as the temperature stabilizes at its new setting. We expect the following frames to show the most striping and banding during this temperature transition: 21:01 CONUS and 21:24 N. Pacific soundings. GOES-15 patch changes are necessary to minimize temperature fluctuations around each equinox due to the cooler blanket anomaly and Yaw Flip operations. The signal to noise ratio and responsivity will improve as a result of operation at a lower patch (detector) temperature until around the next Equinox. *Contact for Further Information:* ESPC Operations at ESPCOperations@noaa.gov at (301) 817-3880 *Web Site(s) for applicable information:* See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages. See http://www.ospo.noaa.gov/Operations/GOES/schedules.html for full GOES scanning schedules and scan sectors. See http://www.ospo.noaa.gov/Operations/GOES/eclipse.html for full GOES eclipse schedules. 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. --Boundary_(ID_il/OHjAFY4UsedSGfcZQSA) Content-type: text/html; charset=utf-8 Content-transfer-encoding: 8BIT

Topic: GOES-15 Sounder IR Detector Temp. Change Product Impact, 4/14/2017, 21:-22:00Z

Date/Time Issued: April 12, 2017 2028Z

Product(s) or Data Impacted: GOES-15 (GOES-West) Sounder Data

Date/Time of Initial Impact: April 14, 2017, at approximately 21:01Z

Date/Time of Expected End: April 14, 2017, at approximately 22:00Z

Length of Outage: N/A

Details/Specifics of Change: On April 14, 2017, SOCC Engineers will change the GOES-15 Sounder patch temperature from its MID set point (85 K) to its LOW set-point (82 K) starting around 20:38Z (16:38 am EDT) just after the Hawaii Short frame. The temperature transition will take approximately 70-80 minutes. The soundings taken during the temperature transition WILL be affected and show signs of striping and banding which will decrease as the temperature stabilizes at its new setting. We expect the following frames to show the most striping and banding during this temperature transition: 21:01 CONUS and 21:24 N. Pacific soundings.

GOES-15 patch changes are necessary to minimize temperature fluctuations around each equinox due to the cooler blanket anomaly and Yaw Flip operations. The signal to noise ratio and responsivity will improve as a result of operation at a lower patch (detector) temperature until around the next Equinox.

Contact for Further Information: ESPC Operations at ESPCOperations@noaa.gov at (301) 817-3880

Web Site(s) for applicable information:

See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages.

See http://www.ospo.noaa.gov/Operations/GOES/schedules.html for full GOES scanning schedules and scan sectors.

See http://www.ospo.noaa.gov/Operations/GOES/eclipse.html for full GOES eclipse schedules.

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.

--Boundary_(ID_il/OHjAFY4UsedSGfcZQSA)--