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 Apr 20 1230 UTC
:Product: documentation at http://www.sidc.be/products/uge
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 90420
GEOALERT BRU110
UGEOA 30512 90420 1230/ 9930/ 
10202 20202 30202 
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 20 Apr 2019 until 22 Apr
2019
COMMENT: Solar activity was at very low levels. While rounding the west
limb, NOAA 2738 produced 4 B-class flares, the strongest being a B8 flare
peaking at 00:50UT. The lone sunspot group currently visible on the solar
disk, NOAA 2739, was quiet and is decaying. No earth-directed coronal mass
ejections were observed over the last 24 hours. The greater than 10 MeV
proton flux was at nominal values. An equatorial negative polarity coronal
hole (CH) is transiting the central meridian.

Solar activity is expected to remain at very low levels.

Solar wind speed was fairly steady between 300 and 350 km/s (DSCOVR). Bz
varied between -4 and +6 nT. The interplanetary magnetic field was mostly
directed away from the Sun (positive sector) until about 07:00UT, when it
switched back to towards the Sun (negative sector). Geomagnetic conditions
were at quiet levels, with an isolated unsettled interval (14-17UT)
recorded at Dourbes.

Quiet geomagnetic conditions are expected to continue, with a chance on an
unsettled interval.



TODAY'S ESTIMATED ISN  : 012, BASED ON 26 STATIONS.
UGEOI 30512 90420 1230/ 19/// 
1//// 20730 3//// 4//// 8//// 9//// 
99999
UGEOR 30512 90420 1230/ 18/06 20102 
10014 2//// 3//// 4201/ 50020 60005 42405 00000 
99999
UMAGF 30503 90420 1004/ 19060 1/009 21221 32111
BT
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