Vaata esmaspäev, 30 september 2024 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2024 Sep 30 1259 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 voolAp
30 Sep 2024200011
01 Oct 2024200011
02 Oct 2024199007

Päikese aktiivsed piirkonnad ja pursked

The solar flaring activity was at moderate level during the last 24 hours, with few C-class flares and three M-class flares. The strongest flare was GOES M1.8 flare from NOAA active region (AR) 3842 which peaked at 14:24 UTC on Sep 29. During the flare, the source region (AR 3842) of the flare had beta-gamma configuration of its photospheric magnetic field. NOAA AR 3842 is the most complex region on the disk (beta-gamma-delta magnetic field configuration). The solar flaring activity is expected to be at low to moderate levels over the next 24 hours, possibly with few M-class flares and a small chance for X-class flares.

Krooniaine massiline väljavool

Presently available observations indicate a coronal mass ejection (CME) on the East limb, which was first observed on SOHO/LASCO coronograph images starting around 03:12 UTC on Sep 30 (detected by CACTUS tool), with an angular width of about 104 deg. This CME was having the source region close to the East limb, although very faint on- disk CME signatures are also observed. Accordingly, glancing blow related to this shock could be expected, with a very low probability, on Oct 03. No other Earth-directed CMEs were detected in the available coronagraph observations during the last 24 hour.

Päikesetuul

Over the past 24 hours, the solar wind parameters were disturbed under the influence of high speed streams (HSSs) from the negative polarity coronal hole which crossed the central meridian on Sep 26. The solar wind speed ranged between 310 km/s to 530 km/s. The North- South component (Bz) ranged between -12 and 13 nT. The interplanetary magnetic field ranged from 2 nT to 15 nT. In the next 24 hours, we expect a gradual transition from fast to slow solar wind.

Geomagnetism

Geomagnetic conditions were globally and locally at quiet to active conditions (NOAA Kp and K BEL 1 to 4), due to the arrival of high speed sptream from the coronal hole which crossed the central meridian on Sep 26. Quiet to active conditions are expected in the next 24 hours.

Prootoni voo tasemed

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

Elektronivoog geostatsionaarsel orbiidil

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the threshold level over the past 24 hours and is expected to remain so in the coming 24 hours. The 24h electron fluence is presently at normal level, and it is expected to remain so in the next 24 hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 177, põhineb 11 jaamadel.

Päikese indeksid 29 Sep 2024

Catania Wolfi number///
10cm päikesevoog197
AK Chambon La Forêt019
AK Wingst016
Hinnanguline Ap017
Hinnanguline rahvusvaheline päikeselaikude arv159 - Põhineb 23 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
29124912531258S11E25M1.0SF--/----
29140914241431S15E51M1.71F--/3842III/1
29143114411446----M1.7--/3842

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

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