Vaata pühapäev, 9 veebruar 2025 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2025 Feb 09 1231 UTC

SIDC ennustus

Päikesepursked ehk loited

M-class flares expected (probability >=50%)

Geomagnetism

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

Päikese prootonid

Warning condition (activity levels expected to increase, but no numeric forecast given)

10 cm voolAp
09 Feb 2025171014
10 Feb 2025167031
11 Feb 2025163012

Päikese aktiivsed piirkonnad ja pursked

Solar flaring activity was at low levels, with multiple C-class flares recorded over the past 24 hours. The largest flare was a C8.0 flare (SIDC Flare 3560) peaking at 12:54 UTC on February 08, associated with SIDC Sunspot Group 360 (NOAA Active Regions 3978; beta- gamma). There are currently ten numbered active regions visible on the solar disk. SIDC Sunspot Group 395 (NOAA Active Region 3984; beta) was the main driver of the flaring activity observed over the past 24 hours together with SIDC Sunspot Group 360 (NOAA Active Region 3978; beta-gamma) and SIDC Sunspot Group 391 (NOAA Active Region 3981; beta-delta), that are currently the largest and magnetically most complex active regions on the disk and are currently approaching the west limb. A new, currently unnumbered active region has rotated on disk from the east limb, in the northeast quadrant, but remained quiet. Low flaring activity was also produced by SIDC Sunspot Group 368 (NOAA Active Region 3977; alpha). Other regions on the disk have simple configurations of their photospheric magnetic fields (alpha and beta) and did not show any significant flaring activity. Solar flaring activity is expected to be at moderate levels over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

Krooniaine massiline väljavool

A faint and slow coronal mass ejection (CME) was observed in LASCO/C2 coronagraph data at 10:12 UTC on February 08, directed primarily to the west from Earth's perspective. The CME is likely associated to M2.0 flare (SIDC Flare 3554), produced by SIDC Sunspot Group 391 (NOAA Active Region 3981). This CME is very faint, not clearly visible in STEREO A COR2, and is not expected to produce significant impact on Earth. Should any of the plasma arrive, possibly on February 12, it will probably be mixed with high speed streams on its way. No other Earth- directed CMEs have been observed in the available coronagraph imagery over the past 24 hours.

Krooniauk

A low-latitude, negative-polarity coronal hole (SIDC Coronal Hole 88) began crossing the central meridian on February 09. An associated high-speed stream may arrive at Earth late on February 12.

Päikesetuul

Over the past 24 hours, the solar wind conditions (ACE and DSCOVR) became slightly disturbed with the interplanetary magnetic field reached 18 nT at around 10:33 UTC on February 09. The southward component of the interplanetary magnetic field ranged between -6 nT and 14 nT. The solar wind speed followed an increasing trend, rising from 310 km/s to 410 km/s. The interplanetary magnetic field orientation switched to the negative sector (field directed towards the Sun) from 08:50 UTC on February 09. This might be associated with arrival of the compression region in front of the expected high-speed stream from a negative polarity coronal hole (SIDC Coronal Hole 88). The solar wind parameters are expected to remain slightly elevated on February 09 - 10, while the Earth remains under the influence for the high-speed stream.

Geomagnetism

Geomagnetic conditions over the past 24 hours were quiet to unsettled both globally and locally over Belgium (NOAA Kp: 1-3; K-Bel:1-3). Geomagnetic conditions are expected to reach active or minor storm levels over the next days in response to the high-speed stream 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 days. There is a slight chance that the proton flux may increase if any high energy flares or eruptions occur.

Elektronivoog geostatsionaarsel orbiidil

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, remained below the 1000 pfu alert threshold, and it is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain at these levels.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 119, põhineb 04 jaamadel.

Päikese indeksid 08 Feb 2025

Catania Wolfi number///
10cm päikesevoog173
AK Chambon La Forêt013
AK Wingst009
Hinnanguline Ap010
Hinnanguline rahvusvaheline päikeselaikude arv123 - Põhineb 08 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
Puuduvad

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

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