Topic: GOES-13/14/15/16/17 Fall 2021 Solar RFI predicted times are now available
Date/Time Issued: September 28, 2021 1815 UTC
Product(s) or Data Impacted: GOES-14/15/16/17 Imager and Sounder Data plus Ancillary Services (GVAR, SAR, HRIT, GRB, RDL, etc.)
Date/Time of Initial Impact: October 4, 2021 2119 UTC
Date/Time of Expected End: October 18, 2021 2101 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, SAR (Search and Rescue), High Rate Information Transmission (HRIT), Sensor Data (SD), Telemetry and Command (T&C), Weather Facsimile (WEFAX), Data Collection Platform Report (DCPR), 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 Fall 2021:
SOLAR RFI PREDICTED TIMES FOR FALL 2021
SPACECRAFT DATE TIME STATION OPERATIONAL IMPACT
GOES-14 5 OCT – 12 OCT 1855 - 1906Z WALLOPS T&C
5 OCT – 12 OCT 1854 - 1905Z SUITLAND
5 OCT – 12 OCT 1852 - 1903Z FAIRMONT
GOES-15 4 OCT – 11 OCT 2034 - 2046Z WALLOPS GVAR, PDR, T&C, SD, MDL
5 OCT – 12 OCT 2033 - 2045Z SUITLAND
5 OCT – 12 OCT 2032 - 2044Z FAIRMONT
11 OCT – 18 OCT 2003 - 2015Z FAIRBANK
GOES-16 4 OCT – 11 OCT 1644 - 1655Z WALLOPS RDL, GRB, T&C, HRIT, DCPC,
4 OCT – 11 OCT 1643 - 1654Z SUITLAND SAR
4 OCT – 11 OCT 1641 - 1653Z FAIRMONT
GOES-17 3 OCT – 10 OCT 2118 - 2129Z WALLOPS RDL, GRB, T&C, HRIT, DCPC,
3 OCT – 10 OCT 2117 - 2128Z SUITLAND SAR
4 OCT – 11 OCT 2117 - 2128Z FAIRMONT
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.osd.noaa.gov/GVAR_Downloads/gvar_downloads.html for more GVAR information.
See http://www.noaasis.noaa.gov/ for Direct Services Branch (DSB) information.
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