Vaata pühapäev, 24 aprill 2022 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2022 Apr 24 1232 UTC

SIDC ennustus

Päikesepursked ehk loited

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10 cm vool	Ap
24 Apr 2022	157	010
25 Apr 2022	154	012
26 Apr 2022	150	007

Bülletään

Solar flaring activity was low. The strongest flare was a C flare of magnitude C3.7 which peaked at 04:01 UT from Catania sunspot group 81 (NOAA active region 2993). Despite remaining fairly quiet over the past period, Catania sunspot group 81 (NOAA active region 2993) and Catania sunspot group 82 (NOAA active region 2994) remain likely sources of strong flaring. The other regions on disc are comparatively insignificant. A new region rotated on the visible disc in east. It is numbered NOAA active region 2998. Flares at M level are likely with still also a chance for an X flare.

No Earth directed CMEs have been identified in coronagraph data.

The greater than 10 MeV proton flux was at background levels. There is a risk of a proton event from Catania sunspot groups 81 and 82 (NOAA AR 2993 and 2994) in the western hemisphere. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold. The 24h electron fluence was at normal levels and is expected to be at normal levels the following days.

Solar wind continued to be slightly enhanced. Solar wind velocity was around 480km/s with some peaks over 500km/s. The magnetic field magnitude remained stable at 5nT with a magnetic field orientation indicating connection to a positive polarity sector. Solar wind speed is expected to remain just slowly enhanced over the next days.

Geomagnetic conditions were quiet to unsettled locally (local K Belgium 1-3) with some isolated active periods globally (NOAA Kp reaching 4). Geomagnetic conditions are expected to be quiet to unsettled with isolated active periods possible.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 121, põhineb 19 jaamadel.

Päikese indeksid 23 Apr 2022

Catania Wolfi number	///
10cm päikesevoog	160
AK Chambon La Forêt	018
AK Wingst	014
Hinnanguline Ap	014
Hinnanguline rahvusvaheline päikeselaikude arv	119 - Põhineb 29 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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