Vaata reede, 11 mai 2018 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2018 May 11 1230 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
11 May 2018	070	009
12 May 2018	070	003
13 May 2018	069	003

Bülletään

Solar activity was at very low levels. Small and inactive region NOAA 2709 (Catania 81) remained the only visible sunspot region on the solar disk. 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 high speed stream (HSS) from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed decreased from about 570 km/s to values near 460 km/s by the end of the period (DSCOVR). Bz varied between -5 and +2 nT, with a negative stretch during the 03-09UT interval and Bz dipping to -5.5 nT. The interplanetary magnetic field was mostly directed towards the Sun. Geomagnetic activity ranged from quiet to active levels.

Quiet to unsettled geomagnetic conditions are expected in response to Earth's gradual exit from the CH HSS. There remains a small chance on an isolated active interval.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 011, põhineb 21 jaamadel.

Päikese indeksid 10 May 2018

Catania Wolfi number	011
10cm päikesevoog	070
AK Chambon La Forêt	018
AK Wingst	014
Hinnanguline Ap	014
Hinnanguline rahvusvaheline päikeselaikude arv	012 - Põhineb 29 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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