Vaata pühapäev, 9 aprill 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Apr 09 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
09 Apr 2017	074	020
10 Apr 2017	073	013
11 Apr 2017	073	014

Bülletään

Solar activity was at very low levels during the period. Low-level B-class flaring was observed from NOAA 2645 (B4.9) from behind the west limb, and from a new, but small sunspot region at the east limb (B3.6). No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected, with a chance on an isolated C-class flare.

Earth was under the influence of coronal hole wind streams. Solar wind speed reached a maximum near 630 km/s around 15:45UT, before starting a gradual decline to end the period near values of 460 km/s. Bz fluctuated between -6 and +6 nT, being mostly negative after 20UT. The interplanetary magnetic field was initially directed towards the Sun, but changed to a mostly away direction after 22:30UT.

The geomagnetic field was at quiet to active levels, with a minor storming episode (Kp=5) during the 03-06UT interval. Local geomagnetic data were missing for the period, but Potsdam reported mostly active conditions. The geomagnetic field is expected to be at quiet to active levels, with a chance on another minor storming episode.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 19 jaamadel.

Päikese indeksid 08 Apr 2017

Catania Wolfi number	///
10cm päikesevoog	073
AK Chambon La Forêt	028
AK Wingst	020
Hinnanguline Ap	019
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 33 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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