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Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2025 Jul 07 1231 UTC

SIDC Prognose

Zonnevlammen

C-class flares expected, (probability >=50%)

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
07 Jul 2025	117	016
08 Jul 2025	119	016
09 Jul 2025	121	010

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C1.5 flare (SIDC Flare 4804) peaking on July 07 at 03:54 UTC, which was not associated with any sunspot group. A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. All regions on disk have either an Alpha or Beta magnetic configuration. SIDC Sunspot Group 539 (NOAA Active Region 4127) has started to rotate over the west limb. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

Coronale massa uitstoten

No Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images. A north directed CME observed at 04:24 UTC on July 07, associated with a filament eruption seen in SDO/AIA 304 and 171 at 01:36 UTC on July 07, is not expected to impact the Earth.

Zonnewind

In the past 24 hours solar wind conditions at Earth were disturbed, due to the ongoing influence of a high-speed stream (HSS), associated with SIDC coronal hole 111. The total interplanetary magnetic field ranged from 6 nT to a peak of 14 nT, with the Bz component reaching a minimum of -11 nT. The solar wind speed ranged from 390 km/s to 570 km/s. The phi-angle was mainly in the negative sector (directed towards the Sun) with periods in the positive sector. The solar wind conditions are expected to remain disturbed in the next 24 hours due to the ongoing influence of the HSS.

Geomagnetisme

The geomagnetic conditions over the past 24 hours reached minor storm conditions globally (Kp 5) and active conditions locally (K BEL 4). Active to minor storm conditions are expected for the next 24 hours.

Proton flux niveaus

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.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux, as measured by the GOES-19 satellite, remained below the 1000 pfu threshold over the past 24 hours. The greater than 2 MeV electron flux, as measured by the GOES-18 satellite, exceeded the 1000 pfu threshold between 21:00 UTC and 22:15 UTC on July 06. The electron flux is expected to remain below the threshold level over the next 24 hours. The 24-hour electron fluence was at normal levels and is expected to remain at normal levels over the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 094, gebaseerd op 13 stations.

Zon indexen voor 06 Jul 2025

Wolfgetal Catania	///
10cm zonneflux	118
AK Chambon La Forêt	029
AK Wingst	020
Geschatte Ap	023
Geschat internationaal zonnevlekkengetal	087 - Gebaseerd op 13 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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