Vaata pühapäev, 3 detsember 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Dec 03 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Moderate (ISES: Major) magstorm expected (A>=50 or K=6)

Päikese prootonid

Quiet

	10 cm vool	Ap
03 Dec 2017	071	004
04 Dec 2017	070	054
05 Dec 2017	070	045

Bülletään

Solar activity was at very low levels. The Sun is spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Quiet flaring conditions are expected.

ACE data indicated solar wind speed decreased further from initial values near 400 km/s to about 350 km/s by the end of the period. Bz varied between +3 nT and -4 nT. The interplanetary magnetic field was mostly directed towards the Sun. The extension of a positive northern polar CH is transiting the central meridian.

The geomagnetic field was quiet to unsettled levels throughout the period, and is expected to remain so until the arrival of the high speed stream from the northern polar coronal hole (CH) extension and its associated preceding co-rotating interaction region. Based on observations from the previous solar rotation and from STEREO-A, their influence may start affecting the earth environment late on 03 December or on 04 December, with minor to moderate geomagnetic storming possible.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 09 jaamadel.

Päikese indeksid 02 Dec 2017

Catania Wolfi number	///
10cm päikesevoog	072
AK Chambon La Forêt	006
AK Wingst	003
Hinnanguline Ap	003
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 13 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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