Het archief bekijken van maandag 6 oktober 2025

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2025 Oct 06 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
06 Oct 2025	148	003
07 Oct 2025	145	003
08 Oct 2025	140	004

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was low over the past 24 hours, with four C-class flares identified. This brightest flare was SIDC Flare 5683, a C3 detected on 5 Oct at 23:42 UTC. It is located at the west limb at N10 and probably partially obstructed by the limb. The same location also produced a C2 on 6 Oct at 08:55 UTC. SIDC Sunspot Group 663 (NOAA Active Region [AR] 4242, Beta magnetic configuration) emitted a C2 on 6 Oct at 10:00 UTC. SIDC Sunspot Group 661 (NOAA AR 4241, Beta magnetic configuration) produced a C1 on 6 Oct at 08:49 UTC. Solar flaring activity is expected to be very low over the next 24 hours, with a chance for C-class flares.

Coronale massa uitstoten

No Earth-directed Coronal Mass Ejections (CME) were observed in the last 24 hours.

Zonnewind

The Solar Wind (SW) conditions returned to a slow SW regime during the past 24 hours. The SW speed dropped from 520 to 400 km/s, while the interplanetary magnetic field (B) ranged between 2 and 7 nT, and its North-South component (Bz) fluctuated between -4 and 5 nT. A similar pattern is expected for the next 24 hours, although there is the possibility of a glancing blow associated with SIDC CME 570.

Geomagnetisme

During the last 24 hours geomagnetic conditions were both globally and locally quiet (NOAA Kp 1- to 2+ and K BEL 1 to 2). They are expected to remain at the same level, both globally and locally, for the next 24 hours.

Proton flux niveaus

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at background levels over the past 24 hours and is likely to remain so in the next 24 hours.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux as measured by GOES 19 was well above the 1000 pfu threshold during the past 24 hours, with a peak value at 24000 pfu. It is expected to remain at the current levels during the next 24 hours. The 24-hour electron fluence is at high levels since 4 Oct 23:10 UTC and is expected to continue at high levels for the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 164, gebaseerd op 12 stations.

Zon indexen voor 05 Oct 2025

Wolfgetal Catania	///
10cm zonneflux	148
AK Chambon La Forêt	010
AK Wingst	010
Geschatte Ap	009
Geschat internationaal zonnevlekkengetal	151 - Gebaseerd op 14 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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