Vaata reede, 30 juuni 2023 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2023 Jun 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 Jun 2023162017
01 Jul 2023162017
02 Jul 2023162017

Päikese aktiivsed piirkonnad ja pursked

Solar flaring activity was at moderated levels over the last 24 hours with several low C-class flares and one M-class flare. The M3.8-class flares produced at 14:14 UTC on Jun 29 by the NOAA Active Region AR-3354, which is now the most complex region on the disc (Beta-gamma-delta). The other complex active regions have also produced several C-class flares. We expect the activity remaining mostly at low to moderated levels with several C-class flares, and possible isolated M-class flare in the next 24 hours.

Krooniaine massiline väljavool

No Earth-directed Coronal Mass Ejections (CME) were observed in the SOHO/LASCO coronograph images over the past 24 hours.

Päikesetuul

The solar wind parameters showed mild enhancement due to the arrival of the high-speed streams associated to the coronal hole (negative polarity) that crossed the solar meridian on Jun 24.The wind speed ranged between 450 km/s to 550 km/h. The total interplanetary magnetic field (Bt) slightly increased up to the 8.1 nT. The southward component (Bz) was fluctuating between -5.4 nT and 4.2 nT. The interplanetary magnetic field phi angle was negative, directed toward the Sun, then around 01:00 UTC it rotated to the positive sector. Mild enhancement of the solar wind conditions are expected for the following day.

Geomagnetism

Geomagnetic conditions were unsettled to active (NOAA Kp=4 and K_BE=4) due to the arrival of the high-speed streams associated to the coronal hole (negative polarity) that crossed the solar meridian on Jun 24, and the negative value of the southward component (Bz) of the interplanetary magnetic field. Geomagnetic activity is expected to remain quiet to unsettled.

Prootoni voo tasemed

The greater than 10 MeV proton flux was at background levels over the past 24 hours and is expected to remain so for the next 24 hours.

Elektronivoog geostatsionaarsel orbiidil

Electron fluxes at GEO: The greater than 2 MeV electron flux was above the 1000 pfu threshold for a short period. It is expected to remain close to the threshold for the next 24 hours. The 24-hour electron fluence was at normal to moderate levels for the past 24 hours and it is expected to remain at these levels for the next 24 hours.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 107, põhineb 21 jaamadel.

Päikese indeksid 29 Jun 2023

Catania Wolfi number///
10cm päikesevoog162
AK Chambon La Forêt025
AK Wingst021
Hinnanguline Ap021
Hinnanguline rahvusvaheline päikeselaikude arv106 - Põhineb 22 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
29140014151423N17W14M3.82B53/3354V/2
29140014151423----M3.8--/----V/2

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

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