Vaata neljapäev, 14 september 2023 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2023 Sep 14 1232 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10 cm voolAp
14 Sep 2023140007
15 Sep 2023140013
16 Sep 2023140013

Päikese aktiivsed piirkonnad ja pursked

The solar flaring activity was at moderate levels, with one M-class flare and several C-class flares recorded in the past 24 hours. The largest flare was a long duration M1.4 flare, occuring at 06:40 on Sept 14 near N20W40. Low flaring activity was also produced by NOAA AR 3423 (beta class) and NOAA AR 3429 (beta-gamma class). Other regions on the disc have simple configuration of their photospheric magnetic field (alpha and beta) and did not show any significant flaring activity. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with C-class flares likely and M-class flares possible.

Krooniaine massiline väljavool

A filament eruption occurred in the northwestern quadrant of the Sun from around 06:26 UTC on September 14th, associated to M1.4 flare. Further coronagraph data is awaited to judge any possible Earth-directed ejecta. There were no other Earth-directed CMEs detected in the available coronagraph observations in the last 24 hours.

Päikesetuul

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) have been slightly elevated with the total interplanetary magnetic field reaching values up to 11 nT. The southward component of the interplanetary magnetic field fluctuated between -7 nT and 9 nT. The solar wind speed followed an increasing trend, rising from 360 km/s to 500 km/s. The solar wind speed is expected to continue to be elevated in the next days due to the high speed stream influence, with a further enhancement possible on Sept 14 – Sept 15 due to the predicted arrival of CME from Sept 11.

Geomagnetism

The geomagnetic conditions over the past 24 hours were mostly quiet to unsettled (NOAA-Kp=1-3) with a single active period registered globally (NOAA-Kp=4) during the interval 00-03 UTC on Sept 14. Locally only quiet to unsettled (K-Bel=1-3) conditions were observed over Belgium. Unsettled to active condition may be possible during the next 24 hours in response to the expected high-speed stream arrival and possible CME arrival.

Prootoni voo tasemed

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next 24 hours.

Elektronivoog geostatsionaarsel orbiidil

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the 1000 pfu threshold and is expecte to remain below this threshold for the next days.The 24h electron fluence was at normal level. The electron fluence is expected to be at normal levels in the next days.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 144, põhineb 17 jaamadel.

Päikese indeksid 13 Sep 2023

Catania Wolfi number137
10cm päikesevoog143
AK Chambon La Forêt025
AK Wingst020
Hinnanguline Ap021
Hinnanguline rahvusvaheline päikeselaikude arv141 - Põhineb 23 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
12043104420447----M1.8--/----
14064007450839----M1.4--/----III/2

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

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