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OK0NAG > SOLAR 25.09.17 14:13l 130 Lines 4578 Bytes #999 (0) @ EU
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Subj: GEOALERT SIDC
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From: ok0nag <ok0nag>
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To: solar@eu
Date: Mon, 25 Sep 2017 13:11:37 GMT
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Subject: GEOALERT SIDC
:Issued: 2017 Sep 25 1311 UTC
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#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU268
UGEOA 30512 70925 1311/ 9930/
10252 21252 30252
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 25 Sep 2017 until 27 Sep
2017
PREDICTIONS FOR 25 Sep 2017 10CM FLUX: 081 / AP: 006
PREDICTIONS FOR 26 Sep 2017 10CM FLUX: 083 / AP: 008
PREDICTIONS FOR 27 Sep 2017 10CM FLUX: 085 / AP: 013
COMMENT: Over the past 24 hours solar activity has been low. No significant
flares have been recorded. NOAA AR region 2681 (Catania group 55) has been
most active, producing two B-class flares. No Earth directed Coronal Mass
Ejections (CMEs) have been detected in coronograph observations. The
greater than 10MeV proton flux remained at background levels over the past
24 hours. Solar activity is expected to remain low over the next 24 hours
with a small probability of C-class flares.
The solar wind parameters remained at nominal levels over the past 24 hours
(except one short-term weak enhancement around midnight due to the
influence of a small negative polarity CH HSS). The solar wind speed is
presently about 390 km/s and still decreasing. The total magnetic field
strength has been slowly decreasing from around 10 nT to 2 nT. The Bz
component fluctuated around 0 nT and was mainly positive, ranging between
-3 and +2.5 nT (except two singular episodes of Bz = -6 and -9 nT yesterday
evening). Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and
local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions
are expected to be from quiet to unsettled today and tomorrow. Active
conditions till minor geomagnetic storms can be expected on September 27
due to the influence of a positive polarity CH HSS.
TODAY'S ESTIMATED ISN : 039, BASED ON 22 STATIONS.
99999
UGEOI 30512 70925 1311/ 24///
1//// 20870 3006/ 4//// 8//// 9////
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 70925 1311/ 25/08 25103
10055 2//// 3//// 4321/ 50100 60006 21412 00000
10056 2//// 3//// 472// 50110 60001 26810 00000
10057 2//// 3//// 474// 50070 60002 18613 00000
99999
USSPS 31405 25088 03942 55010 21412 22306 56011 26810 2/901 57007 18613
4/802
USSPS 81202 23049 01232 72011 24313 2/802
USSPS 32404 23063 01132 77010 24413 2/801
USSPS 21305 23208 01232 76012 23613 3/802
UMAGF 30503 70925 1004/ 24069 1/014 21112 33322
UMAGF 31523 70925 0000/ 24009 1/006 21111 31233
#--------------------------------------------------------------------#
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