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OK0NAG > SOLAR 28.09.17 14:50l 135 Lines 4842 Bytes #999 (0) @ EU
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Subj: GEOALERT SIDC
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From: ok0nag <ok0nag>
Date: Thu, 28 Sep 2017 12:30:29 GMT
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To: solar@eu
Subject: GEOALERT SIDC
:Issued: 2017 Sep 28 1230 UTC
:Product: documentation at http://www.sidc.be/products/xut
#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
GEOALERT BRU271
UGEOA 30512 70928 1230/ 9930/
10282 24282 30282
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 28 Sep 2017 until 30 Sep
2017
PREDICTIONS FOR 28 Sep 2017 10CM FLUX: 092 / AP: 071
PREDICTIONS FOR 29 Sep 2017 10CM FLUX: 090 / AP: 017
PREDICTIONS FOR 30 Sep 2017 10CM FLUX: 089 / AP: 006
COMMENT: Over the past 24 hours solar activity has been very low. Three
numbered active regions on the visible side of solar disk reduced their
magnetic complexity (from Beta to Alpha class) and have not shown any
flaring activity. No Earth directed Coronal Mass Ejections (CMEs) have
been
detected. 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 chance of C-class flares.
The Earth is presently inside the fast solar wind stream with the speed
of
about 710 km/s. The interplanetary magnetic field magnitude decreased from
14 nT till about 4 nT over the past 24 hours. Arrival of the interaction
region between the slow and the fast solar wind from a low-latitude
extension of the northern polar coronal hole induced yesterday at 18UT
moderate geomagnetic storm conditions: NOAA Kp = 6 (with local K = 4 at
Dourbes). The interaction region was followed by the fast stream, with
the
solar wind speed reaching 690 km/s which induced strong geomagnetic storm
at 03UT today: NOAA Kp = 7 (with local K = 5 at Dourbes). The solar wind
speed is still rather high, however interplanetary magnetic field
variations slightly decreased few hours ago. Geomagnetic conditions are
presently at minor storm level (Kp = 5 from 12 UT today), and we expect
active to minor storm level (Kp up to 5) conditions in the coming hours.
TODAY'S ESTIMATED ISN : 048, BASED ON 19 STATIONS.
99999
UGEOI 30512 70928 1230/ 27///
1//// 20910 3034/ 4//// 8//// 9////
99999
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
NONE
END
UGEOR 30512 70928 1230/ 26/07 28103
10055 2//// 3//// 4321/ 50100 60010 20112 00000
10056 2//// 3//// 472// 50130 60003 25410 01000
10057 2//// 3//// 474// 50130 60003 17013 01000
99999
USSPS 31405 28096 05932 55006 32512 2/901 56019 22909 21313 57025 14114
4/802 58001 22305 01203
USSPS 32404 26059 04022 77012 20215 21407 78018 25711 3/801 79016 17112
21402
USSPS 21305 26186 04832 78020 16515 5/802 77018 25010 5/801 76008 30514
31303 79002 31009 01202
USSPS 81202 27005 04832 75001 31109 0/101 72010 30712 21303 73021 24510
5/802 74030 16013 5/802
UMAGF 30503 70928 1004/ 27067 1/064 23333 36555
UMAGF 31523 70928 0000/ 27006 1/034 23344 33366
#--------------------------------------------------------------------#
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