Vaata laupäev, 21 detsember 2024 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2024 Dec 21 1231 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10 cm vool	Ap
21 Dec 2024	184	007
22 Dec 2024	186	007
23 Dec 2024	188	007

Päikese aktiivsed piirkonnad ja pursked

A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare identified. Most of the activity came from the sunspot groups that rotated into view over the east limb in the past days. The largest flare was a M1.9 flare (SIDC Flare 3030) peaking on December 21 at 00:38 UTC, which was produced by SIDC Sunspot Group 341 (NOAA Active Region 3932). Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a chance for X-class flares.

Krooniaine massiline väljavool

No Earth directed CMEs were observed in the last 24 hours.

Krooniauk

A small coronal hole, SIDC Coronal Hole 83 (equatorial coronal hole with a negative polarity) crossed central meridian on December 20.

Päikesetuul

The solar wind at Earth has a speed around 470 km/s and interplanetary magnetic field around 8 nT (DSCOVR). The interplanetary magnetic field has a negative polarity (towards the Sun). Similar slow solar wind conditions are expected for the next 24 hours.

Geomagnetism

Geomagnetic conditions have been quiet to unsettled both globally and locally (Kp and K_Bel up to 3). Similar conditions are expected for the next 24 hours.

Prootoni voo tasemed

The greater-than-10 MeV GOES proton flux has been slightly increasing since around 17:00 UTC on December 20. While it remains below the threshold and will probably not exceed it, the possibility of crossing the threshold within the next 24 hours cannot be excluded.

Elektronivoog geostatsionaarsel orbiidil

The greater than 2 MeV electron flux measured by GOES 16 and GOES 18 remained below the threshold level in the last 24 hours. It is expected to remain so over the next 24 hours. The 24-hour electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 164, põhineb 06 jaamadel.

Päikese indeksid 20 Dec 2024

Catania Wolfi number	212
10cm päikesevoog	184
AK Chambon La Forêt	022
AK Wingst	016
Hinnanguline Ap	015
Hinnanguline rahvusvaheline päikeselaikude arv	154 - Põhineb 21 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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