Viewing archive of Monday, 24 February 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Feb 24 1346 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
24 Feb 2014	175	010
25 Feb 2014	177	007
26 Feb 2014	179	007

Bulletin

Solar activity is dominated by the complex of active regions 1982-1981 (S10W20) and by recurrent active region 1967 (S11E88) crossing the East limb. A filament activation was seen (Feb 24 00:00-05:00) at disc centre, near the complex 1982-1981. NOAA AR 1967 produced a long duration M1 flare. For both cases, coronagraph data are still missing. We expect solar activity to increase as NOAA AR 1967 starts its journey over the solar disc. This active region produced numerous M-flares during its previous rotation, including an M5 flare on February 4, and also on the back-side of the Sun it frequently saturated the STEREO/EUVI sensors. Geomagnetic activity is quiet and is expected to remain so in the coming days.

Today's estimated international sunspot number (ISN): 116, based on 15 stations.

Solar indices for 23 Feb 2014

Wolf number Catania	///
10cm solar flux	172
AK Chambon La Forêt	024
AK Wingst	022
Estimated Ap	020
Estimated international sunspot number	112 - Based on 17 stations

Noticeable events summary

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

All times in UTC

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