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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Mar 22 1206 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 Mar 2014	145	007
23 Mar 2014	145	006
24 Mar 2014	145	006

Bulletin

NOAA AR 2011 released an M1.1 flare today, March 22, peak 07:02UT. This flare was followed by another peak in the x-ray flux not entirely visible due to data dropouts from the GOES satellite occurring during a satellite eclipse. The Solar Demon software detected an eruption in SDO/AIA 94 images in the neighbourhood of NOAA AR 2005, peak 9:30UT. We expect more flaring activity in the C-level. Isolated M-flares are possible. CACTus software sent out a halo CME alert about a plasma eruption on March 20. It concerns the plasma eruption mentioned in the ursigram of March 20 associated with the M1.7 flare. Newly arrived data shows a faint appearance of a CME front in LASCO/SOHO C2 images that comes into the FOV at 04:36UT. The CME has an angular width of around 180 degrees. The solar wind picked up speed (around 450 km/s). The Bz component is positive resulting in a Kp of 2. We expect quiet geomagnetic conditions.

Today's estimated international sunspot number (ISN): 118, based on 08 stations.

Solar indices for 21 Mar 2014

Wolf number Catania	152
10cm solar flux	153
AK Chambon La Forêt	014
AK Wingst	009
Estimated Ap	010
Estimated international sunspot number	087 - Based on 23 stations

Noticeable events summary

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

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