Vaata neljapäev, 23 juuli 2020 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2020 Jul 23 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
23 Jul 2020	070	011
24 Jul 2020	071	010
25 Jul 2020	071	011

Bülletään

Solar flaring activity was at very low levels. No significant flares have been recorded. AR12767 (Hsx/alpha, S22E58) is crossing the solar disk. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at background levels the past 24 hours. It is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux was at background to moderate levels over the past 24 hours and is expected to remain so for the next 24 hours. The solar wind speed near Earth varied between 280 and 320km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) was predominantly oriented away the Sun (phi angle in the positive sector) with a variation to the negative sector on July 23rd 4-11UT. Bz fluctuated between -4 and +3 nT. The magnitude of the magnetic field varied between 2 and 6 nT. A southern negative Coronal Hole (CH) is crossing central meridian. For the next 24 hours the solar wind speed is expected to gradually enhance, as a possible response to the high speed stream from the CH that crossed central meridian on July 19th.

The geomagnetic conditions were quiet to unsettled. The values registered for the past 24 hours were 1-3 for K Dourbes and NOAA Kp=1. Quiet to unsettled, with a chance of an isolated active period (K Dourbes = 4), geomagnetic conditions are expected for the next 24 hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 010, põhineb 25 jaamadel.

Päikese indeksid 22 Jul 2020

Catania Wolfi number	011
10cm päikesevoog	070
AK Chambon La Forêt	006
AK Wingst	004
Hinnanguline Ap	004
Hinnanguline rahvusvaheline päikeselaikude arv	010 - Põhineb 36 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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