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OK0NAG > SOLAR 26.04.12 15:30l 109 Lines 4027 Bytes #999 (0) @ EU
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Subject: GEOALERT SIDC
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:Issued: 2012 Apr 26 1327 UTC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU117
UGEOA 30512 20426 1213/ 9930/
11262 21262 30262
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 26 Apr 2012 until 28 Apr
2012
PREDICTIONS FOR 26 Apr 2012 10CM FLUX: 120 / AP: 022
PREDICTIONS FOR 27 Apr 2012 10CM FLUX: 120 / AP: 011
PREDICTIONS FOR 28 Apr 2012 10CM FLUX: 123 / AP: 007
COMMENT: The GOES X-ray background flux decreased to B3 level. A few
C-flares were observed from NOAA AR 1460 (Cat1) and 1469 (Cat 16), the
largest one a C3.7 flare from NOAA AR 1460 at 12:15 UT on April 25. AIA
304 images show several eruptions on April 26 in NOAA AR 1462 (Cat 02),
with associated (not earth-directed) CME's observed by SOHO/LASCO and
STEREO/COR2. We expect solar conditions to remain low, with a good
chance for isolated C-class flares.
Geomagnetic conditions have been at active levels late on April 25 and
early on April 26 due to coronal hole wind stream effects. The Kp index
was at level 5 between 0:00 and 06:00 UT on April 26. We expect
unsettled to possibly active geomagnetic levels (K=4) today as the CME
of April 23 is expected to arrive. Afterwards, geomagnetic conditions
will return to quiet levels until april 30 when we expect the arrival of
a fast wind stream of a coronal hole that will cross the central
meridian later today.
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania
NOAA NOTE
NONE
END
UGEOR 30512 20426 1213/ 26/07 26108
10001 2//// 3//// 410// 50010 60001 48317 15000
10002 2//// 3//// 4522/ 50050 60008 36714 04000
10010 2//// 3//// 4532/ 50200 60010 33116 00000
10011 2//// 3//// 4321/ 50060 60009 41512 00000
10013 2//// 3//// 4422/ 50070 60008 40710 00000
10015 2//// 3//// 4201/ 50010 60002 24825 15000
10016 2//// 3//// 4201/ 50010 60002 24918 15000
10017 2//// 3//// 410// 50010 60002 15415 00000
99999
#--------------------------------------------------------------------#
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# Royal Observatory of Belgium #
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