Vaata pühapäev, 17 veebruar 2013 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2013 Feb 17 1157 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10 cm vool	Ap
17 Feb 2013	108	006
18 Feb 2013	112	007
19 Feb 2013	116	011

Bülletään

Solar activity was low during the past 24 hours, with only a C1.0 flare on Feb. 17 (0036 UT peak time) from a new region, NOAA AR 1675, which emerged on Feb. 16. This is the main source for additional C flares in the next 48 hours, together, albeit with a lower probability, with NOAA AR 1671 and 1673. Geomagnetic activity was unsettled to active at planetary levels and reached even minor storm conditions at local level (K=5 at Dourbes from 15 to 18UT). This corresponds to a small shock observed by the ACE spacecraft around 1200 UT, linked to a moderate fast solar wind stream, associated with a coronal hole becoming geoeffective. Bz excursions down to -10 nT were observed on that day around 1400UT. We expect quiet conditions to prevail for the next 48 hours, and then reach unsettled to possibly active conditions for isolated periods, by the end of Feb. 19, or the the first half of Feb. 20, due to the arrival of the CME of Feb. 15.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 061, põhineb 05 jaamadel.

Päikese indeksid 16 Feb 2013

Catania Wolfi number	///
10cm päikesevoog	103
AK Chambon La Forêt	019
AK Wingst	010
Hinnanguline Ap	011
Hinnanguline rahvusvaheline päikeselaikude arv	021 - Põhineb 07 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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