Vaata reede, 7 aprill 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Apr 07 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10 cm vool	Ap
07 Apr 2017	072	008
08 Apr 2017	070	005
09 Apr 2017	072	009

Bülletään

Solar activity was at low levels during the period. Two C-class flares were recorded: a C5.5 flare at the very beginning of the period (12:10UT), and a C2.7 event peaking at 00:25UT. Both flares originated from NOAA 2645's trailing portion, which is now very close to the west limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

C-class flaring remains possible, with a small chance on an isolated M-class flare.

Solar wind speed gradually decreased from an initial 490 km/s to 420 km/s by the end of the period. Bz fluctuated between -5 and +4 nT. The interplanetary magnetic field was mostly directed towards the Sun. The particle stream from a narrow extension from the positive polar coronal hole may affect the earth environment on 9 or 10 April.

The geomagnetic field was at quiet to unsettled levels and is expected to remain so, with only a small chance on an isolated active episode.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 027, põhineb 16 jaamadel.

Päikese indeksid 06 Apr 2017

Catania Wolfi number	044
10cm päikesevoog	076
AK Chambon La Forêt	014
AK Wingst	009
Hinnanguline Ap	008
Hinnanguline rahvusvaheline päikeselaikude arv	037 - Põhineb 27 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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