Vaata teisipäev, 29 detsember 2015 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2015 Dec 29 1230 UTC

SIDC ennustus

Kehtib alates 1230 UTC, 29 Dec 2015 kuni 31 Dec 2015
Päikesepursked ehk loited

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

Geomagnetism

Major magstorm expected (A>=50 or K>=6)

Päikese prootonid

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

10 cm voolAp
29 Dec 2015112006
30 Dec 2015115047
31 Dec 2015115063

Bülletään

NOAA AR 2473 produced a long duration M1.8 flare at the start of the period peaking at 12:45UT as well as a C6.9 flare peaking at 10:32UT and several other C flares in the tail of the long duration flare. NOAA AR 2473 remains capable of strong flaring so flaring at M level is expected with also a slight chance for an X flare. The long duration M1.8 flare was associated with a partial halo CME first visible in SoHO/LASCO C2 field of view at 12:12UT. It had an angular width of close to 250 degrees with primary angle to the South-West off the Sun- Earth line. Projected speeds were in the order of 600 km/s with a slightly faster component towards the South-East. An impact at Earth can be expected in the afternoon of December 30 (around 21:00 UT). This CME initiation was also the likely source of a slight and gradual increase of the >10MeV proton flux. It reached a peak just below 4 pfu after midnight and has been decreasing since. With AR 2473 on the Western hemisphere and reamaining capable of strong flaring, a warning condition for proton events is issued. Solar wind conditions were nominal, with speed dropping to 400 km/s early in the period and remaining stable in the 380-420 km/s range. Total magnetic field started very low but was later mainly in the 4.5-6.5 nT range. Bz was variable though mostly negative in the later part of the period but essentially remained above -3nT. The magnetic field phi angle settled in the positive (outward) direction. Solar wind conditions will remain nominal until the expected arrival of the December 28 CME, due in the late afternoon of December 30. Geomagnetic conditions have been essentially quiet (NOAA Kp 1-2) with only an isolated unsettled period locally (K Dourbes 0-3). Quiet to unsettled conditions are expected to continue until the arrival of the December 28 CME which may bring moderate to major geomagnetic storm conditions in the late afternoon of December 30, through to December 31.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 055, põhineb 13 jaamadel.

Päikese indeksid 28 Dec 2015

Catania Wolfi number///
10cm päikesevoog112
AK Chambon La Forêt009
AK Wingst005
Hinnanguline Ap004
Hinnanguline rahvusvaheline päikeselaikude arv065 - Põhineb 24 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
28112012451409----M1.837005/2473IV/1

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

Kõik ajad UTC-s

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