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: 2024 Mar 27 1237 UTC
:Product: documentation at http://www.sidc.be/products/uge
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 40327
GEOALERT BRU087
UGEOA 30512 40327 1237/ 9930/ 
12272 20272 30272 
99999
PLAIN

Solar Active Regions and flaring: The solar flaring activity was moderate
to high with 5 M-class flares. The largest flare of the period was an M1.9
flare with peak time 13:30 UTC March 26. This flare originated from Catania
region 22 (NOAA AR 3615), which is the largest and most complex region on
disk (Beta-Gamma-Delta). This region also produced three further M-class
flares. Catania region 21 (NOAA AR 3614) produced a M1.7 flare with peak
time 13:46 UTC March 26 but is now approaching the west limb. The remaining
regions on disk were stable or in decay and mostly quiet. The solar flaring
activity is expected to be at moderate levels over the next 24 hours with
C-class flares expected, M-class flares likely and a low probability for an
X-class flare.

Coronal mass ejections: No Earth directed Coronal Mass Ejections (CMEs)
have been detected in the available coronagraph imagery.

Solar wind: The solar wind speed gradually decreased from values around 650
km/s to around 500 km/s due to the waning influence of the ICME which
arrived on March 24. The interplanetary magnetic field ranged between 0 and
5 nT. The Bz component reached a minimum value of -3 nT.  The
interplanetary magnetic field phi angle was predominantly in the positive
sector. The solar wind speed is expected to decrease further on March 27
and slow solar wind conditions are expected on March 28 and 29.

Geomagnetism: Geomagnetic conditions were at quiet to unsettled levels
(NOAA Kp 3 and Local K Bel 3). Geomagnetic conditions are expected to be at
quiet to unsettled levels on March 27 and March 28, with isolated active
conditions possible for March 27, while the solar wind speed remains
elevated.


Proton flux levels: Over the past 24 hours the greater than 10 MeV GOES
proton flux was still slightly enhanced but remained below the 10pfu
threshold. The proton flux is expected to continue to decrease and remain
below 10 Mev threshold over the next 24 hours.

Electron fluxes at GEO: The greater than 2 MeV electron flux remained below
the 1000 pfu threshold as measured by GOES 16. It is expected to exceed
this threshold over the next days. The 24-hour electron fluence was at
nominal levels. The electron fluence is expected to increase to normal to
moderate levels over the next day.




TODAY'S ESTIMATED ISN  : 114, BASED ON 09 STATIONS.
UGEOI 30512 40327 1237/ 26/// 
1//// 21780 3012/ 4//// 8//// 9//// 
99999
UGEOR 30512 40327 1237/ ///// ///// 
99999
UMAGF 30503 40327 1004/ 26066 1/018 21222 33332
UMAGF 31523 40327 0000/ 26002 1/012 23213 32333
BT
#--------------------------------------------------------------------#
# Solar Influences Data analysis Center - RWC Belgium                #
# Royal Observatory of Belgium                                       #
#                                                                    #
# Website         http://www.sidc.be.                                #
# E-mail          sidc-support@oma.be                                #
# To unsubscribe  http://www.sidc.be/registration/unsub.php          #
#                                                                    #
# Legal notices:                                                     #
# - Intellectual Property Rights:                                    #
#   http://www.astro.oma.be/common/internet/en/data-policy-en.pdf    #
# - Liability Disclaimer:                                            #
#   http://www.astro.oma.be/common/internet/en/disclaimer-en.pdf     #
# - Use and processing of your personal information:                 #
#   http://www.astro.oma.be/common/internet/en/privacy-policy-en.pdf #
#--------------------------------------------------------------------#

Details

Not available yet.
Check the ISES code book for information on ISES codes.