Vaata laupäev, 28 jaanuar 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Jan 28 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
28 Jan 2017	080	010
29 Jan 2017	079	007
30 Jan 2017	078	012

Bülletään

Solar activity was very low, NOAA 2629 producing the sole B-class flare of the period. A potentially active region is near the northeast limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Mostly quiet flaring conditions are expected, with a small chance on a C-class event.

Earth remained under the influence of the coronal hole's high speed stream. Solar wind speed varied between 580 and 530 km/s, with Bz fluctuating between -4 and +4 nT. The interplanetary magnetic field was mostly directed away from the Sun. A negative coronal hole is at the central meridian (CM) and may start influencing the earth environment around 31 January, probably preceded by a sector boundary crossing (SBC) around 30 January.

The geomagnetic field was at quiet to active levels and is expected to evolve to quiet to unsettled levels, an active episode not excluded.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 028, põhineb 17 jaamadel.

Päikese indeksid 27 Jan 2017

Catania Wolfi number	033
10cm päikesevoog	080
AK Chambon La Forêt	020
AK Wingst	021
Hinnanguline Ap	022
Hinnanguline rahvusvaheline päikeselaikude arv	027 - Põhineb 22 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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