Vaata laupäev, 24 detsember 2022 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2022 Dec 24 1239 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

	10 cm vool	Ap
24 Dec 2022	128	016
25 Dec 2022	128	015
26 Dec 2022	128	007

Bülletään

The solar flaring activity was at low levels with few C-class flares. The flaring activity over the next 24 hours is expected to remain at low levels with some C-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; due to the solar wind conditions it is expected to increase and coss the 1000 pfu threshold over the next 24 hours. The electron fluence was at normal to low levels and it is also expected to increase to more eleveted levels over the next 24 hours.

Earth is currently under the influence of the fast solar wind conditions. The solar wind parameters are enhanced due to the arrival of the high-speed stream associated to the equatorial coronal holes (positive polarity) reaching to the central meridian of the Sun on December 20. The solar wind speed reached values of 600 - 650 km/s, the total interplanetary magnetic field remained slightly enhanced and reached values up to 11.0 nT with the southward interplanetary magnetic component, Bz, ranging between -9.7 nT and 7.8 nT. The solar wind enhancement is expected to persist for the next 24-hour periods.

During the last 24 hours, the geomagnetic conditions were active with some periods of minor storms (NOAA-Kp=5, and K-BEL=5) in response to the enhanced solar wind condition. Geomagnetic conditions are expected to remain mostly active with possible minor short duration minor storm in the next days.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 095, põhineb 05 jaamadel.

Päikese indeksid 23 Dec 2022

Catania Wolfi number	100
10cm päikesevoog	128
AK Chambon La Forêt	043
AK Wingst	027
Hinnanguline Ap	031
Hinnanguline rahvusvaheline päikeselaikude arv	083 - Põhineb 12 jaamal

Märkimisväärsete sündmuste kokkuvõte

Andmed on esitanud Päikeseinfektide Andmeanalüüsi Keskus (Solar Influences Data Analysis Center)© - SIDC - Töötleb SpaceWeatherLive

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