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OK0NAG > SOLAR 07.11.17 14:49l 141 Lines 4857 Bytes #999 (0) @ EU
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Subj: GEOALERT SIDC
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From: ok0nag <ok0nag>
Date: Tue, 7 Nov 2017 12:30:15 GMT
To: solar@eu
Subject: GEOALERT SIDC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU311
UGEOA 30512 71107 1230/ 9930/
10072 22072 30072
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 07 Nov 2017 until 09 Nov
2017
PREDICTIONS FOR 07 Nov 2017 10CM FLUX: 069 / AP: 028
PREDICTIONS FOR 08 Nov 2017 10CM FLUX: 069 / AP: 029
PREDICTIONS FOR 09 Nov 2017 10CM FLUX: 069 / AP: 026
COMMENT: The solar activity is very quiet: The solar disc remains spotless;
no flares have been observed in past 24 h and no active regions visible
on
the disc. The X-ray flux is expected to remain below C level.
No Earth directed Coronal Mass Ejections (CMEs) have been observed and
the
solar protons flux remained at background levels over the past 24 hours.
Since yesterday 12:30 UT, the solar wind environment remained at nominal
level: The wind speed was around 300 km/s, the interplanetary magnetic
field magnitude remained below 6 nT, and Bz component fluctuated between
-2
and 2 nT. This morning around 01:30 UT, the solar wind conditions became
enhanced due to the sector boundary crossing (from a negative to a positive
sector). The wind speed is currently around 430 Km/s, and is expected to
continue to increase. The interplanetary magnetic field magnitude reached
16 nT and will probably not increase much more, the Bz component is
fluctuating between -12 and 10 nT being mainly negative. This sector
boundary crossing announces the soon arrival of the high speed stream
associated with the northern extension Coronal Hole, which has transited
the central meridian on Nov 04. These enhanced solar wind conditions are
expected to persist until Nov 10 while under the influence of the high
speed stream associated with the coronal hole.
Geomagnetic conditions were quiet (local K Dourbes 0-2, NOAA Kp 0-1) until
this morning when disturbed geomagnetic conditions were observed with minor
storm at 09:00 UT due to the sector boundary crossing and the southward
Bz
component. The local K Dourbes first reached 3 at 06:00 UT and NOAA Kp
reached 5 at 09:00 UT. The geomagnetic conditions are expected to vary
between unsettled to active conditions for up to 3 days. Minor storm
conditions may be observed in the coming days, especially if the wind speed
increases more and the Bz component stays negative for longer periods.
TODAY'S ESTIMATED ISN : 000, BASED ON 22 STATIONS.
99999
UGEOI 30512 71107 1230/ 06///
10000 20690 3001/ 4//// 80000 90000
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 71107 1230/ ///// /////
99999
USSPS 31405 07100 00042
UMAGF 30503 71107 1004/ 06069 1/005 20000 30112
UMAGF 31523 71107 0000/ 06003 1/001 21000 30001
#--------------------------------------------------------------------#
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