Vaata laupäev, 12 mai 2018 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2018 May 12 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
12 May 2018	070	011
13 May 2018	070	006
14 May 2018	070	005

Bülletään

Solar activity was at very low levels. Small and inactive region NOAA 2709 (Catania 81) doubled its number of sunspots to 2. No earth- directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Earth remained under the influence of the wind stream from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed first decreased from about 480 km/s to 420 km/s by 23UT, then started a gradual increase to values near 520 km/s by the end of the period (DSCOVR). Bz varied between -6 and +4 nT, and was predominately negative until about 04UT. The interplanetary magnetic field was mainly directed towards the Sun. Geomagnetic activity ranged from quiet to mostly unsettled levels in Dourbes, with Kp recording 3 active intervals.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an isolated active interval.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 013, põhineb 18 jaamadel.

Päikese indeksid 11 May 2018

Catania Wolfi number	011
10cm päikesevoog	070
AK Chambon La Forêt	026
AK Wingst	016
Hinnanguline Ap	017
Hinnanguline rahvusvaheline päikeselaikude arv	011 - Põhineb 28 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

Kõik ajad UTC-s

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