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OK0NAG > SOLAR 22.10.09 16:24l 90 Lines 3090 Bytes #999 (0) @ EU
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Date: Thu, 22 Oct 2009 14:19:26 GMT
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Subject: GEOALERT SIDC
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:Issued: 2009 Oct 22 1418 UTC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU295
UGEOA 30512 91022 1407/ 9930/
10222 21222 30222
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 22 Oct 2009 until 24 Oct
2009
PREDICTIONS FOR 22 Oct 2009 10CM FLUX: 072 / AP: 016
PREDICTIONS FOR 23 Oct 2009 10CM FLUX: 072 / AP: 003
PREDICTIONS FOR 24 Oct 2009 10CM FLUX: 072 / AP: 001
COMMENT: A shock was observed in the ACE solar wind around midnight
21/22 october. The solar wind speed jumped up from 280 to 340 km/s and
the z-component of the interplanetary magnetic field turned southward
for about 10hours. The consequence of that is an ongoing geomagnetic
storm of Kp=4 magnitude. This shock can be traced back to the
eruption/EIT wave observed near central meridian on Oct 17, 19h00. We
predicted this geomagnetic storm in the daily forecasts of Oct 18 and
Oct 19 but later believed it would no longer reach the Earth. However
the low speed (~340 km/s) of the event is compatible with ~5 days travel
time from the Sun to the Earth.
TODAY'S ESTIMATED ISN : 000, BASED ON 10 STATIONS.
99999
UGEOI 30512 91022 1407/ 21///
1//// 20710 3002/ 4//// 8//// 9////
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania
NOAA NOTE
NONE
END
UMAGF 31523 91022 ///// 2100/ 1/002 20001 32101
#--------------------------------------------------------------------#
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