Vaata neljapäev, 5 oktoober 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Oct 05 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10 cm vool	Ap
05 Oct 2017	086	009
06 Oct 2017	086	015
07 Oct 2017	084	010

Bülletään

Solar activity was at very low levels. The two visible sunspot groups, NOAA 2683 (Catania 57) and NOAA 2682 (Catania 56), produced 2 low- level B-class flares each. NOAA 2683 displayed a moderate size increase of some small opposite polarity sunspots south of the main spot, whereas NOAA 2682 still features a long filament to the east and north of the main spot. 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, with a small chance on a C-class flare.

Solar wind speed varied between 360 and 380 km/s before 23UT, and between 380 and 410 km/s for the rest of the period (DSCOVR). Bz fluctuated between -6 and +7 nT, being predominantly positive after midnight. The interplanetary magnetic field was mostly directed towards the Sun.

The geomagnetic field was at quiet to unsettled levels, and is expected to remain so. The particle stream associated with a small negative equatorial coronal hole is still expected to arrive at Earth, late on 05 or on 06 October. This may increase the likelihood on an active geomagnetic episode.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 029, põhineb 14 jaamadel.

Päikese indeksid 04 Oct 2017

Catania Wolfi number	///
10cm päikesevoog	087
AK Chambon La Forêt	010
AK Wingst	007
Hinnanguline Ap	006
Hinnanguline rahvusvaheline päikeselaikude arv	028 - Põhineb 21 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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