Vaata laupäev, 18 aprill 2020 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2020 Apr 18 1231 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
18 Apr 2020	068	007
19 Apr 2020	068	004
20 Apr 2020	069	013

Bülletään

There were no sunspot regions on the visible solar disk. Solar activity was at very low levels and is expected to remain so.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal values and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed undulated between 290 and 350 km/s (DSCOVR). Bz varied between -6 and +3 nT. The direction of the interplanetary magnetic field (phi angle) was in a mostly sunward orientation (negative sector).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be quiet to unsettled, with an active interval possible on 20 April in response to the expected wind stream associated with the extension of the negative polarity southern polar coronal hole.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 19 jaamadel.

Päikese indeksid 17 Apr 2020

Catania Wolfi number	///
10cm päikesevoog	068
AK Chambon La Forêt	008
AK Wingst	004
Hinnanguline Ap	003
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 31 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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