Vaata esmaspäev, 23 oktoober 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Oct 23 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

	10 cm vool	Ap
23 Oct 2017	077	009
24 Oct 2017	079	037
25 Oct 2017	080	046

Bülletään

Solar activity was very low with only a single B2.2 flare peaking at 12:41 UT from a new region rotating around the East limb in the Northern hemisphere. The region is now numbered Catania group 61 or NOAA region 2686. Although there is a chance for C flares and even a slight chance for an M flare from both regions on disk, the general outlook is that flaring will remain below C level. Proton flux levels were at background values and are expected to remain so. No Earth directed CME's were recorded in coronagraph data.

Solar wind speed declined slightly from around 430 km/s to around 380 km/s. Total magnetic field was below 6nT with Bz variable and not below -4nT. The magnetic field phi angle indicated connection to a negative sector. Solar wind is expected to see transition into a positive polarity sector later today and which is then followed by the influence of the high speed stream from the equatorial extension of the northern polar positive polarity coronal hole that started transiting the central meridian around noon October 20. Geomagnetic conditions were quiet to unsettled (both local K Dourbes and NOAA Kp 1-3). Geomagnetic conditions are expected to increase under the influence of the upcoming high speed stream. Associated geomagnetic activity is expected to remain limited to possible periods of minor geomagnetic storming over the next days.

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

Päikese indeksid 22 Oct 2017

Catania Wolfi number	///
10cm päikesevoog	077
AK Chambon La Forêt	009
AK Wingst	006
Hinnanguline Ap	006
Hinnanguline rahvusvaheline päikeselaikude arv	012 - Põhineb 27 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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