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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2024 Jul 09 1232 UTC

Vorhersage des SIDC

Sonneneruptionen

M-class flares expected (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
09 Jul 2024	168	009
10 Jul 2024	167	015
11 Jul 2024	166	014

Solaraktive Regionen und Flares

Solar flaring activity over the past 24 hours was at moderate levels with background C-class flaring and an impulsive M1.1 flare, peak time 12:41 UTC on July 08, associated with an active region behind the south-east limb, which is currently rotating onto the visible disc and continues to produce C-class flares. Another unnumbered active region has rotated from the south-east limb and has contributed to the background flaring activity. There are five numbered active regions on the visible disk with NOAA AR 3738 (beta-gamma) remaining the largest and magnetically most complex region, responsible for majority of the flaring activity on the visible solar disk. The solar flaring activity is likely to be at low to moderate levels over the coming days with 60% chance for M-class flaring and 10% chances for isolated X-class flaring.

Koronaler Massenauswurf

No Earth-directed coronal mass ejections (CMEs) have been detected in the available coronagraph imagery over the past 24 hours.

Sonnenwind

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were indicative of background slow solar wind conditions. The solar wind velocity weakly varied between 355 km/s to 438 km/s. The interplanetary magnetic field registered a maximum value of 8.6 nT and a minimum Bz of -5 nT. The B field phi angle was switching between the negative and positive sectors. The solar wind conditions are expected to be at background solar wind conditions throughout July 09. Weak enhancements are possible on July 10 and July 11 with expected mild high speed stream arrivals.

Geomagnetismus

The geomagnetic conditions over the past 24 hours were globally quiet to unsettled and locally over Belgium reached active levels between 15:00 and 16:00 UTC on July 08. Mostly quiet to unsettled geomagnetic conditions are expected throughout July 09. Quiet to active conditions are expected for late on July 10 and July 11 with anticipated high speed stream arrivals.

Protonenflusswerte

Over the past 24 hours the greater than 10 MeV GOES proton flux was at background levels and is expected to remain so over the next days.

Elektronenflüsse im geostationären Orbit

The greater than 2 MeV electron flux as measured by GOES 16 and GOES 18 was below the 1000 pfu threshold and is expected to remain so in the upcoming days. The 24h electron fluence was at nominal level and is expected to remain so in the next days.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 140, basierend auf 22 Stationen.

Solarindizes für den 08 Jul 2024

Wolf-Zahl Catania	140
10cm Solarflux	169
AK Chambon La Forêt	019
AK Wingst	012
Geschätzer Ap-Wert	013
Geschätzte internationale Sonnenfleckenzahl	111 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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