Het archief bekijken van dinsdag 17 december 2024

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2024 Dec 17 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
17 Dec 2024	167	032
18 Dec 2024	167	007
19 Dec 2024	167	026

Zonnevlekkengebieden en zonnevlammen

A total of 4 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 337 (NOAA Active Region 3924) currently located at S19W42 has a Beta-Gamma magnetic configuration and was growing over the past 24 hours. Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest one was an C4.5 flare peaking at 01:30 UTC, coming from an AR behind the west limb. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a small chance for M-class flares.

Coronale massa uitstoten

No Earth directed CMEs were observed in the last 24 hours.

Zonnewind

A shock was observed in the solar wind at 4:40 UT (in DSCOVR data), the speed jumped from 400 to 500 km/s, and the interplanetary magnetic field from 7 to 20 nT. The shock was driven by an ICME, corresponding to the expected arrival of the CME from 14 December. The solar wind speed reached 680 km/s and the interplanetary magnetic field reached 32 nT, with Bz going down to -16 nT (it is now positive). More disturbed conditions are expected for the next 24 hours.

Geomagnetisme

Due to the shock and ICME arrival, Kp reached 5 (minor storm) and K_Bel 4 (active), more disturbed geomagnetic conditions can be expected in the next 24 hours (in particular if Bz turns negative).

Proton flux niveaus

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level over the next 24 hours.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux measured by GOES 16 and GOES 18 remained below the threshold level in the last 24 hours. It is expected to remain so over the next 24 hours. The 24-hour electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 087, gebaseerd op 08 stations.

Zon indexen voor 16 Dec 2024

Wolfgetal Catania	///
10cm zonneflux	167
AK Chambon La Forêt	///
AK Wingst	013
Geschatte Ap	014
Geschat internationaal zonnevlekkengetal	103 - Gebaseerd op 09 stations

Overzicht opvallende gebeurtenissen

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

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