Vaata teisipäev, 25 aprill 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Apr 25 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

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

Päikese prootonid

Quiet

	10 cm vool	Ap
25 Apr 2017	081	014
26 Apr 2017	079	014
27 Apr 2017	078	008

Bülletään

There are three active regions, all with the simple configuration of the photospheric magnetic field, presently observed on the visible side of the solar disc. Solar activity is low with five low B-class and no C-class flares reported during last 24 hours. We do not expect change in the solar activity, and although C-class flares are possible, they are not very probable. No Earth directed CMEs have been observed and the solar protons remained at background level in the past 24 hours.

The solar wind speed is slowly decreasing and it presently amounts 600 km/s. The interplanetary magnetic field magnitude is about 5nT. Due to the influence of the fast solar wind, several intervals of the active conditions were reported during last 24 hours (Dourbes reported K=4 and NOAA Kp=4). The geomagnetic conditions are presently unsettled to active and we expect them to stay so in the coming hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 041, põhineb 20 jaamadel.

Päikese indeksid 24 Apr 2017

Catania Wolfi number	050
10cm päikesevoog	080
AK Chambon La Forêt	028
AK Wingst	020
Hinnanguline Ap	024
Hinnanguline rahvusvaheline päikeselaikude arv	046 - Põhineb 28 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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