SIDC ursigram

:Issued: 2024 May 08 1259 UTC
:Product: documentation at http://www.sidc.be/products/uge
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# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
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SIDC URSIGRAM 40508
GEOALERT BRU129
UGEOA 30512 40508 1259/ 9930/ 
13082 20082 30082 
99999
PLAIN

Solar Active Regions and flaring: The solar flaring activity was at very
high levels with several M-class flares and two X-class flares during the
last 24 hours. The strongest reported flares were two GOES X1.0 flares
which peaked at 01:41 UTC and 05:09 UTC on May 08, produced by NOAA Active
Region (AR) 3663 and AR 3664, respectively. During the flares, both source
regions (AR 3663 and AR 3664) of the flares had beta-gamma-delta
configuration of its photospheric magnetic field. Over the past 24 hours,
NOAA AR 3663 (beta-gamma-delta), AR 3664 (beta-gamma-delta), and AR 3668
(beta) were the magnetically complex regions which produced all M-class and
X-class flares, whereas other regions were inactive and stable. The solar
flaring activity is expected to be at high to very high levels over the
next 24 hours possibly with several M-class flares and X-class flares.

Coronal mass ejections: A partial halo coronal mass ejection (CME) has been
detected by Cactus tool at 4:12 UTC on May 08. It is associated with
M-class flares from NOAA AR 3664. It has a projected speed of about 459
km/s and a projected width of 162 degree (as measured by Cactus tool).
Further analysis is going-on to investigate the potential Earth-directed
components.

Coronal holes: Two coronal holes (CH) have started to cross the central
meridian on May 8, with one CH spanning 15 N - 40 N (positive polarity) and
another CH spanning 29 S - 43 S (negative polarity). The solar wind from
these coronal holes may enhance the solar wind environment near Earth on
May 11.

Solar wind: Solar wind parameters are transitioning from fast to slow solar
wind regime. The solar wind speed decreased from 550 km/s to 450 km/s. The
North-South component (Bz) ranged between -4 and 5 nT. The interplanetary
magnetic field ranged between 2 nT and 6 nT. We expect a transition to slow
solar wind regime in the next 24 hours.

Geomagnetism: Geomagnetic conditions were globally and locally at quiet to
unsettled conditions (NOAA Kp and K BEL 1 to 3). Quiet to unsettled
conditions are expected in the next 24 hours.

Proton flux levels: The greater than 10 MeV GOES proton flux was below the
threshold level over the past 24 hours and is expected to remain so for the
next 24 hours.

Electron fluxes at GEO: The greater than 2 MeV electron flux, as measured
by the GOES-16 satellite, was below the threshold level over the past 24
hours and is expected to remain so in the coming 24 hours. The 24h electron
fluence is presently at normal level and is expected to remain so for the
next 24 hours.




TODAY'S ESTIMATED ISN  : 160, BASED ON 08 STATIONS.
UGEOI 30512 40508 1259/ 07/// 
1//// 22041 3009/ 4//// 8//// 9//// 
99999
UGEOR 30512 40508 1259/ ///// ///// 
99999
UMAGF 30503 40508 1004/ 07060 1/014 22223 32212
UMAGF 31523 40508 0000/ 07007 1/009 22222 33322
BT
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