Vaata esmaspäev, 8 jaanuar 2018 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2018 Jan 08 1253 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
08 Jan 2018	070	012
09 Jan 2018	069	011
10 Jan 2018	068	008

Bülletään

Solar activity is very low, without C-class or even B-class flares reported for more than a week. We expect such a low activity to persist in the coming days. There were no Earth directed CMEs observed during last 24 hours, and the solar protons are at background level. The in situ observations (from DSCOVR satellite) indicate arrival of the interplanetary shock wave at 05:55 UT this morning. The sudden increase of the solar wind speed (from about 290 to 350 km/s) was observed simultaneously with the increase of the density, temperature and the interplanetary magnetic field magnitude (from about 6 nT to 15 nT). The shock in the solar wind is probably related with the expected arrival of the fast solar wind associated with the low latitude extension of the northern polar coronal hole which reached central meridian late evening of January 04. The solar wind speed is slowly increasing and it presently amounts 360 km/s and the interplanetary magnetic field magnitude is 20 nT. The Bz component turned negative about two hours ago and it presently amounts about -13 nT. If the negative value of the Bz component persists for a longer time interval we can expect disturbed geomagnetic conditions (up to Kp=4). The geomagnetic conditions are presently quiet and we expect unsettled to active geomagnetic conditions in the coming hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 013, põhineb 06 jaamadel.

Päikese indeksid 07 Jan 2018

Catania Wolfi number	///
10cm päikesevoog	070
AK Chambon La Forêt	005
AK Wingst	002
Hinnanguline Ap	002
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 14 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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