Topic: GOES-14/15/16/17 Spring 2021 Solar RFI predicted times are now available


Date/Time Issued: Match 5, 2021 1830 UTC


Product(s) or Data Impacted: GOES-14/15/16/17 Imager and Sounder Data plus Ancillary Services (GVAR, SAR, LRIT, EMWIN, DCS, GRB, etc.)


Date/Time of Initial Impact: February 23, 2021 1709 UTC


Date/Time of Expected End: March 9, 2021 2150 UTC


Length of Outage: See table in details.


Details/Specifics of Change: The potential for solar radio frequency interference (RFI) with a satellite downlink circuit will occur whenever the Sun passes into the beam of the ground station receiving antenna.


We received the following information from our Mission Operations Division concerning the potential for outages of the GOES data stream including GVAR (GOES Variable) Imager and Sounder, EMWIN (Emergency Managers Weather Information Network), SAR (Search and Rescue), Low Rate Information Transmission (LRIT), High Rate Information Transmission (HRIT), GOES Data Collection System (DCS), Sensor Data (SD), Telemetry and Command (T&C), Weather Facsimile (WEFAX), Data Collection Platform Report (DCPR), Data Collection Platform Command (CPC), GOES Rebroadcast (GRB), Multi-use data link (MDL), Raw Data Link (RDL), etc.


The Wallops and Fairbanks Command and Data Acquisition Stations (CDAs) and Environmental Satellite Processing Center (ESPC) receiving antennas may experience periods of Solar RFI as predicted below. Solar RFI can cause loss of telemetry lock and command capability, as well as degradation or loss in the GVAR data.


Solar RFI predicted times for the Spring 2021:





SPACECRAFT                DATE                   TIME          STATION      OPERATIONAL IMPACT

GOES-14             1 MAR - 8 MAR        1918 - 1929Z    WALLOPS T&C

       1 MAR - 7 MAR        1917 - 1928Z    SUITLAND

    1 MAR - 7 MAR        1915 - 1926Z    FAIRMONT


GOES-15             2 MAR - 9 MAR        2103 - 2114Z    WALLOPS T&C

       2 MAR - 8 MAR        2102 - 2112Z    SUITLAND   

       23 FEB - 2 MAR        2235 - 2046Z    FAIRBANK  

    2 MAR - 8 MAR        2102 - 2113Z    FAIRMONT    


GOES-16             1 MAR - 8 MAR        1708 - 1719Z    WALLOPS RDL, GRB, T&C, HRIT, DCPC,

       1 MAR - 7 MAR        1707 - 1718Z    SUITLAND SAR

       1 MAR - 7 MAR        1706 - 1716Z    FAIRMONT       


GOES-17             2 MAR - 9 MAR        2140 - 2151Z   WALLOPS RDL, GRB, T&C, HRIT, DCPC,

       2 MAR - 8 MAR        2139 - 2150Z    SUITLAND SAR

       23 FEB - 2 MAR        2113 - 2124Z    FAIRBANK  

    1 MAR - 8 MAR        2139 - 2150Z    FAIRMONT       



Contact Information for Further Information: ESPC Operations at 301-817-3880


Web Site(s) for applicable information:

See for this and other satellite related messages.

See for full GOES scanning schedules and scan sectors.

See for more GVAR information.

See for Direct Services Branch (DSB) information.


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