Subject: Administrative: Suomi-NPP Table 21 Upload planned for Friday This is a multi-part message in MIME format. --Boundary_(ID_aJ9hlSe4Oc3LQFdHRV88ag) Content-type: text/plain; charset=utf-8; format=flowed Content-transfer-encoding: 7BIT *Topic: *SNPP Table 21 Upload planned for Friday March 17, 2017 *Date/Time Issued:* March 17, 2017 1555Z *Products or Data Impacted:* None Expected *Date/Time of Initial Impact: * March 17, 2017 17:43Z *Date/Time of Expected End:* March 17, 2017 19:25Z *Length of Outage:* See details below *Details/Specifics of Change: * Today, Friday March 17, 2017 an updated Command Block Memory (CBM) Table (Table 21) will be loaded to S-NPP which contains the No-Slew On-board Stored Maneuver Sequence (OSMS) capability. During the upload of this CBM, the on-board CSM and CBM will be stopped, and will prevent some of ATMS Scan Reversals from running. Scan Reversals will be managed via ground command and may not coincide with nominal cadence, and some reversals may be missed. Timeline of activities are as follows: Friday March 17, 2017: 17:43Z-17:55Z SVL 27912 17:46Z-17:54Z Quiet Window for CBM upload. CSM and CBM stopped for approximately 5 minutes during upload 17:48Z: Time when normal ATMS scan reversal would have occurred 17:51Z: Approximate time for manual ATMS scan reversal. Subject to miss reversal during this orbit. 18:39Z: Time when nominal ATMS scan reversal would have occurred over the South Pole 18:42Z: Approximate time of ATMS scan reversal due to manual commanding above. Subject to miss reversal during this orbit. 19:26Z: Nominal ATMS Cadence resumes when ATMS Scan Reversal CBM called from CSM *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.govor (301) 817-3880 . Please note: it maytake up to two business days to process your unsubscribe request. --Boundary_(ID_aJ9hlSe4Oc3LQFdHRV88ag) Content-type: text/html; charset=utf-8 Content-transfer-encoding: 8BIT

Topic: SNPP Table 21 Upload planned for Friday March 17, 2017

Date/Time Issued: March 17, 2017 1555Z

Products or Data Impacted: None Expected

Date/Time of Initial Impact: March 17, 2017 17:43Z

Date/Time of Expected End: March 17, 2017 19:25Z

Length of Outage: See details below

Details/Specifics of Change:

Today, Friday March 17, 2017 an updated Command Block Memory (CBM) Table (Table 21) will be loaded to S-NPP which contains the No-Slew On-board Stored Maneuver Sequence (OSMS) capability. During the upload of this CBM, the on-board CSM and CBM will be stopped, and will prevent some of ATMS Scan Reversals from running. Scan Reversals will be managed via ground command and may not coincide with nominal cadence, and some reversals may be missed.

Timeline of activities are as follows:

Friday March 17, 2017:
17:43Z-17:55Z SVL 27912

17:46Z-17:54Z Quiet Window for CBM upload. CSM and CBM stopped for approximately 5 minutes during upload

17:48Z: Time when normal ATMS scan reversal would have occurred

17:51Z: Approximate time for manual ATMS scan reversal. Subject to miss reversal during this orbit.

18:39Z: Time when nominal ATMS scan reversal would have occurred over the South Pole

18:42Z: Approximate time of ATMS scan reversal due to manual commanding above. Subject to miss reversal during this orbit.

19:26Z: Nominal ATMS Cadence resumes when ATMS Scan Reversal CBM called from CSM

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.govor (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.

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