Vaata reede, 23 veebruar 2018 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2018 Feb 23 1230 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
23 Feb 2018	068	021
24 Feb 2018	068	012
25 Feb 2018	068	012

Bülletään

There are no sunspot regions on the visible hemisphere of the Sun and flaring level is very low. The chance for a C flare in the next 24 hours is estimated at 5%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The solar wind speed (recorded by DSCOVR and ACE) gradually increased from about 405 to 550 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed mainly toward the Sun and its magnitude ranged between about 2 and 11 nT. Bz was variable and dived below -5 nT several times, with a minimum of about -8 nT. On February 23, 24 and 25 the solar wind is expected to be at nominal levels, possibly with occasional periods of enhanced solar wind as the Earth comes close to the high speed stream associated with the negative polarity south polar coronal hole.

Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 2 and 5) were registered in the past 24 hours. Quiet to active geomagnetic levels (K Dourbes < 5) are expected for February 23, 24 and 25, with a chance for minor storm intervals (K Dourbes = 5) when the Earth comes close to the high speed stream associated with the negative polarity south polar coronal hole.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 16 jaamadel.

Päikese indeksid 22 Feb 2018

Catania Wolfi number	///
10cm päikesevoog	068
AK Chambon La Forêt	025
AK Wingst	016
Hinnanguline Ap	014
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 32 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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