SIDC ursigram

3-day-forecast of solar and geomagnetic activity.
Source SIDC (RWC-Belgium)
Frequency Daily
Format Encoded data (ISES)
Mail header SIDC ursigram
SIDC code uge

Latest issue

:Issued: 2019 Feb 18 1230 UTC
:Product: documentation at http://www.sidc.be/products/uge
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 90218
GEOALERT BRU049
UGEOA 30512 90218 1230/ 9930/ 
10182 21182 30182 
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 18 Feb 2019 until 20 Feb
2019
COMMENT: Solar activity was at very low levels. The Sun was spotless. A
10-degrees long filament in a spotless active region (former sunspot group
NOAA 2733) is currently located at N10E30. No coronal mass ejections were
observed over the last 24 hours. The greater than 10 MeV proton flux was at
nominal values. A diffuse and patchy positive polarity equatorial coronal
hole (CH) finished its transit of the central meridian yesterday 17
February.

Solar activity is expected to remain at very low levels.

Solar wind parameters were indicative of a small disturbance starting on 17
February around 15 UT. Wind speed varied mostly between 340 and 370 km/s
(DSCOVR). Bz ranged between -6 and +6 nT, with a 5-hour stretch of Bz
values near -5 nT centered around 00UT. The direction of the interplanetary
magnetic field (phi angle) was variable. Quiet to unsettled geomagnetic
conditions were observed.

Quiet to unsettled geomagnetic conditions are expected to continue, until
the arrival of the co-rotating interaction region and wind stream from the
positive polarity coronal hole on 19 or 20 February. This may result in
active conditions, with a small chance on an isolated minor storming
episode.



TODAY'S ESTIMATED ISN  : 000, BASED ON 23 STATIONS.
UGEOI 30512 90218 1230/ 17/// 
1//// 20700 3005/ 4//// 8//// 9//// 
99999
UGEOR 30512 90218 1230/ ///// ///// 
99999
USSPS 31405 18070 00042
UMAGF 30503 90218 1004/ 17064 1/012 21100 32332
UMAGF 31523 90218 0000/ 17004 1/005 21011 30033
BT
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Details

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Check the ISES code book for information on ISES codes.