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OK0NAG > SOLAR 24.10.17 23:11l 131 Lines 4677 Bytes #999 (0) @ EU
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Subj: GEOALERT SIDC
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Subject: GEOALERT SIDC
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Date: Tue, 24 Oct 2017 12:30:15 GMT
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU297
UGEOA 30512 71024 1230/ 9930/
10242 22242 30242
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 24 Oct 2017 until 26 Oct
2017
PREDICTIONS FOR 24 Oct 2017 10CM FLUX: 078 / AP: 026
PREDICTIONS FOR 25 Oct 2017 10CM FLUX: 079 / AP: 055
PREDICTIONS FOR 26 Oct 2017 10CM FLUX: 080 / AP: 040
COMMENT: Quiet solar conditions were reported with not a single flare
occurring and the X-ray flux remained below B level.
Both active regions on disk are relatively simple (McIntosh: Hax; Mag.Type:
Alpha) and quiet.
The X-ray flux is expected to remain below C level.
Proton flux levels were at background values and are expected to remain
so.
No Earth directed CME's were recorded in coronagraph data.
Solar wind remained initially nominal until a weak shock at 7:41UT occurred
in the interplanetary Solar wind as measured at L1 by the DSCOVR
spacecraft. Solar wind speed initially increased only slightly from around
360 km/s to around 380km/s with also a moderate increase in total magnetic
field from around 4nT to 6.5nT. But this was followed by the transition
into a positive polarity sector as indicated by the shift in phi angle
around 10:30UT after which solar wind speed started a steady ascent to
450
km/s presently and total magnetic field reached up to 15nT. The Bz
component of the magnetic field is variable but with some periods of
sustained negative values down to -10nT. The perturbed conditions are a
result of a high speed stream from the coronal hole in the northern
hemisphere.
Perturbed solar wind conditions are expected to continue with solar wind
speed steadily increasing over the next 24-48 hours before starting to
subside.
Geomagnetic conditions were quiet to unsettled.
Geomagnetic conditions are expected to become unsettled to active with
also
periods of minor geomagnetic storming expected over the next 24-48h.
TODAY'S ESTIMATED ISN : 023, BASED ON 07 STATIONS.
99999
UGEOI 30512 71024 1230/ 23///
10024 20780 3006/ 4//// 80202 90060
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 71024 1230/ 23/07 24102
10060 2//// 3//// 472// 50040 60002 25209 02000
10061 2//// 3//// 471// 50020 60002 17814 01000
99999
USSPS 32404 22068 01132 81006 26909 2/801
USSPS 21305 22166 01442 81010 26209 2/804
USSPS 81202 23016 02432 76009 25609 2/801 77003 17812 0/103
UMAGF 30503 71024 1004/ 23065 1/007 21211 30111
UMAGF 31523 71024 0000/ 23008 1/006 23112 31112
#--------------------------------------------------------------------#
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