Vaata reede, 29 september 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Sep 29 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
29 Sep 2017	093	015
30 Sep 2017	093	012
01 Oct 2017	092	007

Bülletään

Over the past 24 hours solar activity has been low. No significant flares have been recorded. Catania group 55 (NOAA AR region 2681) has been most active, producing one B2.9 flare peaking at 14:34 UT yesterday (29-Sep-2017). No Earth directed Coronal Mass Ejections (CMEs) have been detected in coronograph observations. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with some probability of C-class flares. The Earth is still inside the fast solar wind stream with the speed of about 640 km/s. However the magnitude of the interplanetary magnetic field remained below 5 nT over the past 24 hours, while Bz component varied between -4 and 4.4 nT. Geomagnetic conditions were active yesterday afternoon (Kp = 4 at 12-21 UT; 28 Sep-2017). Later, after a single episode of minor storm (Kp = 5 at 21-24 UT; 28-Sep-2017) geomagnetic conditions became unsettled (29-Sep-2017) with Kp (NOAA) and local K (Dourbes) indexes ranging between 1-3 and 2-3 respectively. The geomagnetic conditions are expected to remain from unsettled to active (Kp = 4) at least until 01-Oct-2017.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 046, põhineb 20 jaamadel.

Päikese indeksid 28 Sep 2017

Catania Wolfi number	059
10cm päikesevoog	091
AK Chambon La Forêt	037
AK Wingst	040
Hinnanguline Ap	044
Hinnanguline rahvusvaheline päikeselaikude arv	047 - Põhineb 31 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

Kõik ajad UTC-s

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