Vaata pühapäev, 19 aprill 2020 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2020 Apr 19 1231 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
19 Apr 2020	069	003
20 Apr 2020	069	013
21 Apr 2020	069	010

Bülletään

The Sun was spotless. 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. From 21 April onwards, the electron flux could become more enhanced following the arrival of a coronal hole wind stream.

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

Solar wind speed was steady between 310 and 330 km/s (DSCOVR). Bz varied between -4 and +3 nT, being mostly at positive values. The direction of the interplanetary magnetic field (phi angle) was in a mostly sunward orientation (negative sector), except for a period between midnight and 07UT when it was in a positive orientation.

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 24 jaamadel.

Päikese indeksid 18 Apr 2020

Catania Wolfi number	///
10cm päikesevoog	070
AK Chambon La Forêt	005
AK Wingst	003
Hinnanguline Ap	003
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 30 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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