898
NOUS72 KNCF 061749
ADMNCF
PLEASE PASS TO MIC/HIC, ESA, AND SOO
SUBJ: AWIPS SBN INTERRUPTIONS DUE TO SOLAR ECLIPSE
FROM 22 FEBRUARY UNTIL 18 MARCH, THE SUN WILL ALIGN WITH THE GE-4 SPACECRAFT
IN SUCH A WAY THAT SOLAR RF ENERGY WILL DEGRADE OR INTERRUPT RECEIPT OF AWIPS
SBN TRANSMISSION FOR MANY SITES. THIS INTERFERENCE WILL BEGIN BETWEEN 18:30Z
AND 19:10Z AND LAST FOR ABOUT 20 MINUTES EACH DAY OVER A PERIOD OF ABOUT 10 DAYS
AT EACH SITE DURING THE SOLAR ECLIPSE INTERVAL
THE AWIPS SBN AUTOMATIC RETRANSMISSION FEATURE WILL ENSURE THAT AWIPS SITES DOES
NOT EXPERIENCE DATA LOSS FOR THE NWSTG AND NOAAPORT CHANNELS. THERE IS NO
RETRANSMISSION CAPABILITY FOR THE GOES-E AND GOES-W CHANNELS, SO THERE MAY BE
SOME GOES DATA LOSS DURING THE SOLAR OUTAGE PERIOD.
Ncf/kbb
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