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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Jun 22 1210 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
22 Jun 2013	140	019
23 Jun 2013	145	005
24 Jun 2013	145	003

Bulletin

The background X-ray radiation is near the top of the B-level. NOAA AR 1777 has a probability of more than 50% to flare in the C-level. M-flares are still possible. Solar wind speed is around 600 km/s. The density and the magnetic field decreased. This behaviour of the solar wind parameters is a typical coronal hole signature: a co-rotating interaction region with relatively high density and compressed magnetic field is followed by the actual fast solar wind emanating from the coronal hole itself. This is a typical lower density plasma. Geomagnetic conditions returned to quiet/unsettled conditions.

Today's estimated international sunspot number (ISN): 083, based on 09 stations.

Solar indices for 21 Jun 2013

Wolf number Catania	///
10cm solar flux	133
AK Chambon La Forêt	027
AK Wingst	020
Estimated Ap	022
Estimated international sunspot number	095 - Based on 17 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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