Het archief bekijken van donderdag 22 december 2022

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2022 Dec 22 1435 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
22 Dec 2022	139	006
23 Dec 2022	139	007
24 Dec 2022	139	007

Bulletin

The solar flaring activity was at low levels with several C-class flares. The larger flare was a C6.8-class from the sunspot region, NOAA-AR 3169 (with a beta-gamma magnetic complexity) peaking at 22:36 UTC on December 22. The flaring activity over the next 24 hours is expected to remain mostly at low levels, with C-class flares expected and a small possibility for M-class flares.

Several coronal mass ejections and flows were observed in the currently available SOHO/LASCO coronagraph imagery and automatically detected by the Cactus tool over the past 24 hours. However, no clear Earth-directed coronal mass ejections were identified.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux was below the 1000 pfu threshold over the past 24 hours and is expected to remain below the 1000 pfu threshold over the next 24 hours. The electron fluence was at normal to low levels and is expected to stay at normal levels over the next 24 hours.

The solar wind parameters were slightly enhanced. The solar wind speed remained slow around 340-440 km/s, the total interplanetary magnetic field remained slightly enhanced and reached values up to 13.1 nT with the southward interplanetary magnetic component, Bz, ranging between -10.2 nT and 11.7 nT. The high-speed stream associated to the equatorial narrow coronal holes (positive polarity) facing Earth Earth yesterday may enhance the solar wind measurement near Earth in about two days from now.

During the last 24 hours, the geomagnetic conditions were mostly quiet with some periods of untested condition (NOAA-Kp=1-3, and K-BEL=1-3). Geomagnetic conditions are expected to remain quiet with periods of unsettled conditions in the next days.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 101, gebaseerd op 12 stations.

Zon indexen voor 21 Dec 2022

Wolfgetal Catania	129
10cm zonneflux	139
AK Chambon La Forêt	016
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	103 - Gebaseerd op 13 stations

Overzicht opvallende gebeurtenissen

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

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