Vaata pühapäev, 30 aprill 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Apr 30 1242 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10 cm vool	Ap
30 Apr 2017	076	008
01 May 2017	075	006
02 May 2017	074	006

Bülletään

Solar activity is very low and only one B-class flare was reported during last 24 hours. The long duration B3.0 flare (peaking at 00:57 UT on April 30) originated from the Catania sunspot group 18 (NOAA AR 2653). The flare was associated with the on disc CME signatures, EIT wave and coronal dimming. Presently available coronagraph images show that associated CME had angular width of about 90 degrees and as such it is not very probable that it will arrive at the Earth. No Earth directed CMEs have been observed and the solar protons remained at background level in the past 24 hours.

The Earth is presently inside the slow solar wind with the speed of about 390 km/s, and the interplanetary magnetic field magnitude has the value of about 3nT. The geomagnetic conditions are quiet and we expect them to remain so in the coming hours.

As we expect flaring activity to be below the C-class level, quiet geomagnetic conditions and no particle events, we will issue the all quiet alert.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 024, põhineb 21 jaamadel.

Päikese indeksid 29 Apr 2017

Catania Wolfi number	///
10cm päikesevoog	077
AK Chambon La Forêt	011
AK Wingst	008
Hinnanguline Ap	008
Hinnanguline rahvusvaheline päikeselaikude arv	034 - Põhineb 32 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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