Vaata laupäev, 16 mai 2015 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2015 May 16 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10 cm vool	Ap
16 May 2015	132	007
17 May 2015	127	016
18 May 2015	122	021

Bülletään

NOAA 2339 and 2342 produced a C2 class flare each. No other flaring events were observed. A large filament in the northeast quadrant erupted shortly before midnight. No obvious x-ray signature was associated with this event. No earth-directed coronal mass ejections (CMEs) have been observed.

Further C-class flaring is expected, with a slight chance on an M-class flare.

Solar wind speed declined further from 530 km/s to its current value of about 430 km/s. Bz varied between -4 and +2 nT. Quiet to unsettled geomagnetic conditions were observed. A recurrent positive polarity coronal hole (CH) has completed its central meridian transit.

The arrival of the 13 May CME and the high speed stream from the aforementioned CH are expected for late 17 or 18 May. This may result in active conditions, with a minor storming episode not excluded. Until then, quiet to unsettled geomagnetic conditions are expected.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 069, põhineb 07 jaamadel.

Päikese indeksid 15 May 2015

Catania Wolfi number	///
10cm päikesevoog	137
AK Chambon La Forêt	011
AK Wingst	008
Hinnanguline Ap	009
Hinnanguline rahvusvaheline päikeselaikude arv	089 - Põhineb 26 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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