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OK0NAG > SOLAR 03.12.17 13:33l 120 Lines 3959 Bytes #999 (0) @ EU
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Subject: GEOALERT SIDC
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Date: Sun, 3 Dec 2017 12:30:20 GMT
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU337
UGEOA 30512 71203 1230/ 9930/
10032 23032 30032
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 03 Dec 2017 until 05 Dec
2017
PREDICTIONS FOR 03 Dec 2017 10CM FLUX: 071 / AP: 004
PREDICTIONS FOR 04 Dec 2017 10CM FLUX: 070 / AP: 054
PREDICTIONS FOR 05 Dec 2017 10CM FLUX: 070 / AP: 045
COMMENT: Solar activity was at very low levels. The Sun is spotless. 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.
ACE data indicated solar wind speed decreased further from initial values
near 400 km/s to about 350 km/s by the end of the period. Bz varied between
+3 nT and -4 nT. The interplanetary magnetic field was mostly directed
towards the Sun. The extension of a positive northern polar CH is
transiting the central meridian.
The geomagnetic field was quiet to unsettled levels throughout the period,
and is expected to remain so until the arrival of the high speed stream
from the northern polar coronal hole (CH) extension and its associated
preceding co-rotating interaction region. Based on observations from the
previous solar rotation and from STEREO-A, their influence may start
affecting the earth environment late on 03 December or on 04 December,
with
minor to moderate geomagnetic storming possible.
TODAY'S ESTIMATED ISN : 000, BASED ON 09 STATIONS.
99999
UGEOI 30512 71203 1230/ 02///
1//// 20720 3003/ 4//// 8//// 9////
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 71203 1230/ ///// /////
99999
UMAGF 30503 71203 1004/ 02061 1/006 20013 31000
UMAGF 31523 71203 0000/ 02000 1/003 21000 31311
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