Vaata pühapäev, 17 mai 2015 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2015 May 17 1231 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

	10 cm vool	Ap
17 May 2015	126	013
18 May 2015	122	021
19 May 2015	118	010

Bülletään

No C-class flares were observed. NOAA 2339 is quietly rounding the west limb. The 5 other sunspot regions are small and magnetically simple. Various filament eruptions were observed, most notably a filament east of NOAA 2348 that erupted around 07:00UT. Based on currently available coronagraphic imagery, none of the related coronal mass ejections (CMEs) had an earth-directed component.

There's still a chance for an isolated C-class flare.

Solar wind speed decreased further from about 430 km/s and is currently ranging between 360 and 400 km/s. Bz varied between -4 and +5 nT. A sector boundary crossing was observed at 04:10-04:20UT, with the direction of the interplanetary magnetic field abruptly turning from toward to away from the Sun. Quiet to unsettled geomagnetic conditions were observed.

The arrival of the 13 May CME and the high speed stream from the recurrent positive polarity coronal hole are expected for later today or 18 May. This may result in active conditions, with a possibility on a minor storming episode.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 059, põhineb 17 jaamadel.

Päikese indeksid 16 May 2015

Catania Wolfi number	///
10cm päikesevoog	131
AK Chambon La Forêt	009
AK Wingst	006
Hinnanguline Ap	005
Hinnanguline rahvusvaheline päikeselaikude arv	071 - Põhineb 18 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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