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SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2024 Jun 21 1231 UTC

SIDC ennustus

Päikesepursked ehk loited

M-class flares expected (probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

	10 cm vool	Ap
21 Jun 2024	204	013
22 Jun 2024	204	021
23 Jun 2024	204	013

Päikese aktiivsed piirkonnad ja pursked

Solar flaring activity over the last 24 hours has been at moderate levels, with multiple C-class and M-class flares. The largest flare was a M5.8 flare peaking at 23:13 UTC originated from NOAA active region 3719. There are currently six sunspot groups on the disc with NOAA active region 3719 producing the two M-class flares. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours, with C-class flares expected, M-class flares possible and a small chance of X-class flares.

Krooniaine massiline väljavool

No Earth-directed coronal mass ejection (CME) was observed in SOHO/LASCO-C2 coronographe images over the last 24 hours.

Krooniauk

A large north midlatitude north coronal hole with negative polarity, which has crossed the central meridian on June 18 is on geoeffective location, now in the west side of the sun.

Päikesetuul

Solar wind conditions have returned to slow wind regime in the last 24 hours. The solar wind speed decreased from around 501 km/s to 388 km/s. The interplanetary magnetic field remained below 6 nT and the Bz component varied between -3 nT and 5 nT. The solar wind conditions are expected to remain in a slow solar wind regime. Then the high-speed stream from the large north midlatitude north coronal hole with negative polarity is expected to reach Earth in the next period.

Geomagnetism

Geomagnetic conditions were quiet (NOAA Kp 0-2, K BEL 1-2). Later, active conditions to minor storm may be observed later in the next period, in response of the high-speed stream from the large north midlatitude north coronal hole.

Prootoni voo tasemed

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level and decrease over the next 24 hours.

Elektronivoog geostatsionaarsel orbiidil

The greater than 2 MeV electron flux was below the threshold level in the last 24 hours and is expected to remain so over the next 24 hours. The 24h electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 148, põhineb 12 jaamadel.

Päikese indeksid 20 Jun 2024

Catania Wolfi number	///
10cm päikesevoog	203
AK Chambon La Forêt	013
AK Wingst	009
Hinnanguline Ap	007
Hinnanguline rahvusvaheline päikeselaikude arv	163 - Põhineb 22 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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