Vaata neljapäev, 18 mai 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 May 18 1231 UTC

SIDC ennustus

Päikesepursked ehk loited

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

	10 cm vool	Ap
18 May 2017	072	010
19 May 2017	072	020
20 May 2017	072	024

Bülletään

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Solar wind speed measured by DSCOVR decreased from about 470 to 400 km/s in the past 24 hours. The magnitude of the Interplanetary Magnetic Field (IMF) varied between about 1 and 10 nT. Enhanced solar wind conditions are expected to start in the second half of May 19 due to the arrival of a high speed stream from a negative equatorial coronal hole. Quiet to unsettled geomagnetic conditions (K Dourbes between 2 and 3; NOAA Kp between 1 and 4) were registered in the past 24 hours. Quiet to unsettled levels are expected on May 18 and the first half of May 19, with a slight chance for active geomagnetic levels (K Dourbes = 4). Active (K Dourbes = 4) to minor storm conditions (K Dourbes = 5) are possible in the second half of May 19 and on May 20, due to the expected high speed stream.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 023, põhineb 14 jaamadel.

Päikese indeksid 17 May 2017

Catania Wolfi number	044
10cm päikesevoog	071
AK Chambon La Forêt	///
AK Wingst	009
Hinnanguline Ap	009
Hinnanguline rahvusvaheline päikeselaikude arv	012 - Põhineb 31 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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