Vaata kolmapäev, 14 september 2022 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2022 Sep 14 1232 UTC

SIDC ennustus

Kehtib alates 1230 UTC, 14 Sep 2022 kuni 16 Sep 2022
Päikesepursked ehk loited

C-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 voolAp
14 Sep 2022156011
15 Sep 2022155004
16 Sep 2022155015

Bülletään

Solar flaring activity over the past 24 hours reached moderate levels with a gradual M1.1-class flare, start time 09:41 UTC, end time 10:43 UTC, peak time 10:19 UTC on Sept 14th and multiple C-class flares, including an impulsive C9.2-class flare, start time 15:07 UTC, end time 15:28 UTC and peak time 15:16 UTC on Sept 13th. Most of the flaring activity including the M-flare were produced by the largest and most complex active region, NOAA 3098 (beta-gamma), which underwent further development and is a few days away from the west limb. NOAA 3101 has now rotated behind the west limb and continued to produce low C-class flaring from behind the limb. The region near the south-east limb, NOAA 3102 (beta), has produced only isolated low C-class flaring. NOAA 3100 (beta) underwent some growth, but remained inactive. NOAA 3094 and NOAA 3099 have now decayed into plage regions. The remaining active regions are magnetically simple and have remained inactive. The flaring activity is expected to be at low background levels with chances for more isolated M-class flaring mainly from NOAA 3098 in the next 24 hours.

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery over the past 24 hours.

The greater than 10 MeV proton flux was elevated, but remained below minor storm level in the past 24 hours. The greater than 10 MeV proton flux is expected to remain below minor storm level, but could reach the threshold depending on further flaring/CME activity. The greater than 2 MeV electron flux has crossed the 1000 pfu threshold over long periods of time and is expected to be above the threshold for long periods in the next 24 hours. The 24h electron fluence was at moderate levels in the past 24 hours and is expected to remain so in the next 24 hours.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) registered disturbances related to what could be a mild ICME arrival. This could be a signature of a very weak halo CME seen in the LASCO C2 data in the evening of Sept 10th, possibly following the on disc filament eruption around 19:30 UTC on Sept 10th. The signatures could possibly also be attributed to a minor glancing blow from the later filament eruption on Sept 10th or the eastward CME, leaving the Sun around 07:48 UTC on Sept 11th, although the observed solar wind speeds do not support the latter. The solar wind velocity smoothly varied around 300 km/s. The interplanetary magnetic field reached a maximum value of 11.5 nT with a weak Bz-component not less than -5.2 nT. Over the night the B field switched from the positive to the negative sector for about 7 hours and returned back to the positive sector after (directed away from the Sun). The solar wind parameters are expected to be slightly enhanced over the next 24 hours with elevated density and temperature and possibly sightly elevated magnetic field. High speed stream from a negative polarity coronal hole which partially resides on the central meridian is expected to arrive at Earth early on Sept 16th.

The geomagnetic conditions over the past 24 hours were quiet to unsettled. Quiet to unsettled geomagnetic conditions are expected to persist over the next 24 hours with minor chances for isolated active periods.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 092, põhineb 10 jaamadel.

Päikese indeksid 13 Sep 2022

Catania Wolfi number143
10cm päikesevoog154
AK Chambon La Forêt006
AK Wingst002
Hinnanguline Ap003
Hinnanguline rahvusvaheline päikeselaikude arv105 - Põhineb 20 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
14094110191043N21W56M1.1SF30/3098III/1

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

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