Vaata laupäev, 31 august 2019 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2019 Aug 31 1230 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

	10 cm vool	Ap
31 Aug 2019	066	031
01 Sep 2019	066	019
02 Sep 2019	066	015

Bülletään

The solar activity has been quiet over the past 24 hours. The Sun is currently spotless and the X-ray flux remained below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No Earth-directed coronal mass ejections (CME) were observed over the past 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours and is expected to remain at low levels. A large low latitude coronal hole passed the central meridian of the Sun yesterday.

The Earth is currently under the influence of fast solar wind conditions, due to the High Speed Stream (HSS) from a Coronal Hole. The solar wind speed has increased from 380 to 670 km/s. The total magnetic field strength has fluctuated between 5 nT and 12 nT over the past 24 hours. The Bz component fluctuated around 0 nT, ranging between -10 and +10 nT (as recorded by ACE). Geomagnetic conditions ranged between Kp index 3-5 (NOAA) and local K index 2-4 (Dourbes) over the past 24 hours.

The solar wind speed has increased over the past 24 hours due to the HSS from a recurrent low-latitude equatorial coronal hole of positive polarity. Active geomagnetic conditions have been experienced as a consequence. Enhanced solar wind conditions are anticipated for the next couple of days.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 28 jaamadel.

Päikese indeksid 30 Aug 2019

Catania Wolfi number	///
10cm päikesevoog	067
AK Chambon La Forêt	024
AK Wingst	014
Hinnanguline Ap	014
Hinnanguline rahvusvaheline päikeselaikude arv	000 - Põhineb 32 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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