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OK0NAG > SOLAR 17.09.17 14:35l 130 Lines 4495 Bytes #999 (0) @ EU
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Date: Sun, 17 Sep 2017 12:34:14 GMT
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Subject: GEOALERT SIDC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU260
UGEOA 30512 70917 1234/ 9930/
10172 20172 30172
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 17 Sep 2017 until 19 Sep
2017
PREDICTIONS FOR 17 Sep 2017 10CM FLUX: 070 / AP: 007
PREDICTIONS FOR 18 Sep 2017 10CM FLUX: 069 / AP: 007
PREDICTIONS FOR 19 Sep 2017 10CM FLUX: 068 / AP: 007
COMMENT: The only sunspot group presently observed on the solar disk,
Catania number 55 (NOAA AR 2680), is unlikely to produce flaring activity
above the B-class level. No flares were reported in the past 24 hours.
Newly arrived coronagraph observations show two very faint and slow partial
halo CMEs (with angular width of about 180 degrees), first time observed
in
the SOHO/LASCO C2 field of view at 19:48 UT on September 15 and at 12:24
on
September 16. The source region of both CMEs was the Catania sunspot group
46 (NOAA AR 2673) which is at the back side of the Sun as seen from the
Earth. Therefore these two CMEs will not arrive to the Earth. The solar
protons remained at background level in the past 24 hours.
The Earth remains to be inside the fast solar wind stream associated with
a
low-latitude extension of the northern polar coronal hole which reached
central meridian on September 09. The solar wind speed is slowly decreasing
and it presently amounts about 670 km/s. The interplanetary magnetic field
magnitude is 6 nT. Due to the influence of the fast flow active geomagnetic
conditions were reported in the last 24 hours (both NOAA and local station
at Dourbes reported interval of Kp=4 and K=4, respectively). Presently
geomagnetic conditions are quiet, however the solar wind speed is still
quite high and longer intervals of southward Bz might induce unsettled
to
active conditions in the coming hours.
TODAY'S ESTIMATED ISN : 015, BASED ON 21 STATIONS.
99999
UGEOI 30512 70917 1234/ 16///
1//// 20720 3025/ 4//// 8//// 9////
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 70917 1234/ 15/08 17101
10055 2//// 3//// 472// 50100 60002 10909 00000
99999
USSPS 32404 15063 01132 75010 11108 2/801
USSPS 81202 15011 01232 69008 11309 2/802
USSPS 21305 15154 01432 75002 10809 3/804
UMAGF 30503 70917 1004/ 16060 1/034 22344 34333
UMAGF 31523 70917 0000/ 16005 1/025 25433 34443
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