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OK0NAG > SOLAR 06.12.17 14:51l 129 Lines 4316 Bytes #999 (0) @ EU
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Subj: GEOALERT SIDC
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Subject: GEOALERT SIDC
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From: ok0nag <ok0nag>
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To: solar@eu
Date: Wed, 6 Dec 2017 12:30:55 GMT
:Issued: 2017 Dec 06 1230 UTC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU340
UGEOA 30512 71206 1230/ 9930/
10062 22062 30062
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 06 Dec 2017 until 08 Dec
2017
PREDICTIONS FOR 06 Dec 2017 10CM FLUX: 070 / AP: 018
PREDICTIONS FOR 07 Dec 2017 10CM FLUX: 072 / AP: 024
PREDICTIONS FOR 08 Dec 2017 10CM FLUX: 073 / AP: 014
COMMENT: The solar activity remained very quiet. No flare has been recorded
in the past 24-hour. One bipolar sunspot (Catania sunspot group 65) has
just emerged. Quiet flaring conditions are expected.
No Earth directed Coronal Mass Ejection has been observed. The greater
than
10 MeV solar protons flux remained at nominal levels over the past 24 hours
and is expected to remain so.
The Earth remained under the high speed solar wind stream (HSS) associated
with the Coronal Hole (which has crossed the central meridian on Dec 01).
The wind speed has continued to gradually increase from 550 to 630 km/s,
and is currently showing a slight declining to 540 km/s. The interplanetary
magnetic field magnitude showed a slow decline from 11 nT to the current
value of 4 nT, and the Bz component fluctuated between -8 and 6 nT to
return to its nominal values between -4 and 4 nT.
Disturbed geomagnetic conditions were observed due to the fast solar wind
and the Bz component of the interplanetary magnetic field reaching -8 nT.
A
minor storm was observed by the local stations at Dourbes (K=5 from 15:00
to 17:00 UT on Dec 05), while NOAA reported Kp between 3 and 4. The high
speed stream is expected to persist and new minor geomagnetic storms cannot
be excluded, especially if Bz component remains negative for longer periods
of time.
TODAY'S ESTIMATED ISN : 012, BASED ON 08 STATIONS.
99999
UGEOI 30512 71206 1230/ 05///
10000 20680 3034/ 4//// 80000 90000
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 71206 1230/ 06/08 06101
10065 2//// 3//// 4201/ 50010 60003 40707 01000
99999
USSPS 31405 06085 01342 65001 40707 01203
UMAGF 30503 71206 1004/ 05067 1/047 23355 34433
UMAGF 31523 71206 0000/ 05007 1/034 23334 35654
#--------------------------------------------------------------------#
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