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OK0NAG > SOLAR 28.11.17 14:32l 127 Lines 4344 Bytes #999 (0) @ EU
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Subject: GEOALERT SIDC
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Date: Tue, 28 Nov 2017 12:30:15 GMT
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU332
UGEOA 30512 71128 1230/ 9930/
10282 21282 30282
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 28 Nov 2017 until 30 Nov
2017
PREDICTIONS FOR 28 Nov 2017 10CM FLUX: 074 / AP: 009
PREDICTIONS FOR 29 Nov 2017 10CM FLUX: 073 / AP: 013
PREDICTIONS FOR 30 Nov 2017 10CM FLUX: 073 / AP: 005
COMMENT: Solar activity was at very low levels. NOAA 2689 is the only
visible sunspot group and is gradually decaying. The prominent 40 degrees
long filament in the SW quadrant was quiet. No earth-directed coronal mass
ejections (CMEs) were observed in available coronagraphic imagery. The
greater than 10 MeV proton flux was at nominal levels.
Quiet flaring conditions are expected, with a slight chance on an isolated
C-class flare.
Earth was under the influence of the wind stream from the extensions of
the
negative polar coronal hole (CH). Solar wind speed peaked near 490 km/s
around 14UT and again around 01UT (DSCOVR), ending the period with values
around 440 km/s (ACE). Bz was mostly positive, except for a period from
23UT till 01UT with sustained negative values around -8 nT. The
interplanetary magnetic field was mostly directed towards the Sun.
The geomagnetic field was quiet throughout the period, except for the
00-03UT interval when Kp was at active levels. Quiet to unsettled
conditions are expected as Earth remains under the influence from the weak
CH wind stream. A glancing blow from the 25 November CME late on 28 or
on
29 November may add to the geomagnetic unrest and result in unsettled to
active conditions.
TODAY'S ESTIMATED ISN : 015, BASED ON 19 STATIONS.
99999
UGEOI 30512 71128 1230/ 27///
10015 20740 3006/ 4//// 80101 90050
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 71128 1230/ 27/09 28101
10065 2//// 3//// 4321/ 50050 60005 42713 01000
99999
USSPS 31405 28081 01632 65004 43913 21306
USSPS 81202 27013 01922 81010 42213 31409
USSPS 32404 26069 01522 84006 41213 21405
USSPS 21305 26154 01832 86008 41613 31308
UMAGF 30503 71128 1004/ 27067 1/013 21121 32232
UMAGF 31523 71128 0000/ 27000 1/006 22211 32222
#--------------------------------------------------------------------#
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