Subject: Administrative: Suomi-NPP VIIRS Flight Software Update This is a multi-part message in MIME format. --------------090005030609070704040803 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit *Topic*: Suomi-NPP VIIRS Flight Software Update scheduled for December 10, 2014 * ****Date/Time Issued*: December 8, 2014 2019 UTC * **Product(s) or Data Impacted*: Suomi-NPP VIIRS data *Date/Time of Initial Impact*: December 10, 2014 1309 UTC *Date/Time of Expected End*: December 10, 2014 2155 UTC *Length of Outage*: See Details * **Details/Specifics of Change*: On Wednesday December 10, 2014 the VIIRS instrument will transition to a new flight software version (Ver. x4016). The flight software update is not expected to impact VIIRS data; however, the transition to the new update will cause periodic outages and will cause degradation of the Day-Night Band until corresponding tables are loaded. Below is a list of expected impacts: VIIRS Data may be missing or corrupt during the following VIIRS flight software transition commanding windows: SVL 16162: 13:08:48 - 13:22:59 UTC SVL 16163: 14:50:48 - 15:04:23 UTC SVL 16164: 16:34:09 - 16:46:16 UTC SVL 16165: 18:17:38 - 18:28:17 UTC SVL 16166: 20:00:25 - 20:11:33 UTC SVL 16167: 21:42:27 - 21:55:23 UTC *VIIRS Data Impacts*: VIIRS will be commanded to OP_Day mode for multiple orbits as a necessary step to minimize data impacts. Between 15:00 - 18:25 UTC, the VIIRS instrument will be placed in OP_Day mode and will be not executing day-to-night transitions. During that time, the visible bands will appear "degraded" during the nominal OP_N portion of the orbits as this data is not produced at that time. In addition, the VIIRS Day-Night Band will be degraded due to the flight software transition starting at approximately 16:37 UTC. The degradation is expected to end by 20:11 UTC when all required DNB tables have been loaded and activated. VIIRS will return to full nominal operations after 21:55 UTC. Contact Information 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. This message was sent to 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. --------------090005030609070704040803 Content-Type: multipart/related; boundary="------------020909060106030406070203" --------------020909060106030406070203 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Topic: Suomi-NPP VIIRS Flight Software Update scheduled for December 10, 2014

Date/Time Issued: December 8, 2014 2019 UTC

Product(s) or Data Impacted: Suomi-NPP VIIRS data

Date/Time of Initial Impact: December 10, 2014 1309 UTC

Date/Time of Expected End: December 10, 2014 2155 UTC

Length of Outage: See Details

Details/Specifics of Change: On Wednesday December 10, 2014 the VIIRS instrument will transition to a new flight software version (Ver. x4016). The flight software update is not expected to impact VIIRS data; however, the transition to the new update will cause periodic outages and will cause degradation of the Day-Night Band until corresponding tables are loaded. Below is a list of expected impacts:

VIIRS Data may be missing or corrupt during the following VIIRS flight software transition commanding windows:
SVL 16162: 13:08:48 - 13:22:59 UTC
SVL 16163: 14:50:48 - 15:04:23 UTC
SVL 16164: 16:34:09 - 16:46:16 UTC
SVL 16165: 18:17:38 - 18:28:17 UTC
SVL 16166: 20:00:25 - 20:11:33 UTC
SVL 16167: 21:42:27 - 21:55:23 UTC

VIIRS Data Impacts:

VIIRS will be commanded to OP_Day mode for multiple orbits as a necessary step to minimize data impacts. Between 15:00 - 18:25 UTC, the VIIRS instrument will be placed in OP_Day mode and will be not executing day-to-night transitions. During that time, the visible bands will appear "degraded" during the nominal OP_N portion of the orbits as this data is not produced at that time.

In addition, the VIIRS Day-Night Band will be degraded due to the flight software transition starting at approximately 16:37 UTC. The degradation is expected to end by 20:11 UTC when all required DNB tables have been loaded and activated. VIIRS will return to full nominal operations after 21:55 UTC.

Contact Information 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.

This message was sent to 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. --------------020909060106030406070203 Content-Type: image/gif; name="cleardot.gif" Content-Transfer-Encoding: base64 Content-ID: Content-Disposition: inline; filename="cleardot.gif" R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw== --------------020909060106030406070203-- --------------090005030609070704040803--