Vaata reede, 19 juuli 2013 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2013 Jul 19 1316 UTC

SIDC ennustus

Päikesepursked ehk loited

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

	10 cm vool	Ap
19 Jul 2013	113	023
20 Jul 2013	115	030
21 Jul 2013	116	015

Bülletään

Solar activity is still low with only two C-class flares reported during last 24 hours. Both of them were C2.3 flares originating from the NOAA AR 1800 situated at the moment close to the east solar limb. NOAA AR 1793 still has beta-gamma configuration of the photospheric magnetic field, and therefore, also the potential to produce C-class and possibly M-class flares. The prominence eruption on the east solar limb at about 17:59 UT on July 18 was associated with the CME first seen in the SOHO/LASCO C2 field of view at 18:24 UT. The CME had angular width of 130 degrees and projected speed of about 550 km/s, as reported by the CACTUS software. The CME might be Earth directed, however this cannot be confirmed, due to the data gap in STEREO observations. The Earth is inside the fast speed stream due to the low-latitude coronal hole in the northern hemisphere. At the moment the solar wind speed is 600 km/s and the interplanetary magnetic field (IMF) is rather stable with the magnitude of about 5 nT. The arrival of the coronal hole high speed stream resulted in active geomagnetic conditions (K = 4 reported by Dourbes, K = 5 reported by IZMIRAN and NOAA reported Kp=4) on July 18 and early on July 19. We expect minor storm conditions.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 056, põhineb 13 jaamadel.

Päikese indeksid 18 Jul 2013

Catania Wolfi number	///
10cm päikesevoog	115
AK Chambon La Forêt	028
AK Wingst	020
Hinnanguline Ap	018
Hinnanguline rahvusvaheline päikeselaikude arv	071 - Põhineb 23 jaamal

Märkimisväärsete sündmuste kokkuvõte

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

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