Vaata teisipäev, 26 juuni 2018 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2018 Jun 26 1244 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
26 Jun 2018	073	025
27 Jun 2018	072	020
28 Jun 2018	071	010

Bülletään

Solar activity is low and there were no B-class or stronger flares reported during last 24 hours. Since there is presently only one active region observed on the visible side of the solar disc, Catania sunspot group 88 (NOAA AR 2715), we expect low flaring activity to persist in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons remained at the background level. As expected, the solar wind speed increased this morning and it presently amounts about 560 km/s. The interplanetary magnetic field showed smooth increase, observed starting from midday of June 25, which was followed by strong variation of its Bz component. All this, together with the observed sector change, indicates arrival of the fast solar wind associated with the recurrent coronal hole (the low latitude extent of the southern polar coronal hole which is reaching even up to the solar equator). Due to the longer interval of negative value of the Bz component, both local station at Dourbes and also NOAA reported disturbed geomagnetic conditions (K=5 and Kp=5, respectively). The geomagnetic conditions are presently unsettled to active and we expect such geomagnetic conditions to persist in the coming hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 015, põhineb 25 jaamadel.

Päikese indeksid 25 Jun 2018

Catania Wolfi number	///
10cm päikesevoog	073
AK Chambon La Forêt	028
AK Wingst	///
Hinnanguline Ap	013
Hinnanguline rahvusvaheline päikeselaikude arv	017 - Põhineb 34 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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