Vaata reede, 30 detsember 2022 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2022 Dec 30 1235 UTC

SIDC ennustus

Kehtib alates 1230 UTC, 30 Dec 2022 kuni 01 Jan 2023
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10 cm voolAp
30 Dec 2022160031
31 Dec 2022160029
01 Jan 2023160017

Bülletään

Solar flaring activity again reached moderate levels. A double peaked M2 flare originated again from at or beyond the northeastern limb peaking at 18:20UTC and 18:33UTC. Further C-class flaring was also observed from NOAA active region 3179 that newly emerged to the south of NOAA active region 3173 (Catania group 29). Catania group 23 (NOAA active region 3169) is has now rotated behind the west limb. Apart from the newly emerged NOAA active region 3179, also new flux emerge of opposite polarity was observed ahead of the leading spot of NOAA active region 3176 (Catania sunspot group 31). The region that is rotating into view on the northeast and that was the source of the recent M flares is now numbered NOAA active region 3180 but its proximity to the limb is still preventing detailed analysis. Flaring at C level is expected, with a significant chance for new M-class flares.

No Earth-directed CMEs have been observed in coronagraph data.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux briefly reached over the 1000 pfu threshold and may do so again today. The electron fluence was at moderate levels and is expected to be at normal to moderate levels over the next 24 hours.

A positive polarity coronal hole in the northern hemisphere has transited the central meridian in the past days and is currently influencing solar wind conditions.

Solar wind conditions have become elevated under the anticipated influence of the high speed stream from the coronal hole in the northern hemisphere. Solar wind speed increased to over 500 km/s before midnight and has been hovering around that value since. The magnitude of the interplanetary magnetic field increased gradually to around 12nT currently. The orientation of the magnetic field indicated connection to a positive sector (field away from the Sun) with a variable north-south component (Bz ranging between -10nT to 12nT). Elevated solar wind conditions are expected continue today and into tomorrow, before starting to settle down on January 1.

Geomagnetic conditions were active with also a minor geomagnetic storm episode recorded both locally and globally (NOAA Kp and local K Dourbes reaching 5). Active conditions are expected over the next 24 to 48 hours with isolated minor geomagnetic storm periods possible.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 144, põhineb 01 jaamadel.

Päikese indeksid 29 Dec 2022

Catania Wolfi number///
10cm päikesevoog163
AK Chambon La Forêt034
AK Wingst014
Hinnanguline Ap013
Hinnanguline rahvusvaheline päikeselaikude arv124 - Põhineb 08 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
29181118201826----M2.1--/----CTM/1
29182618331843----M2.4--/----CTM/1

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

Kõik ajad UTC-s

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