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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Nov 27 1231 UTC

SIDC Forecast

Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
27 Nov 2015	100	006
28 Nov 2015	098	007
29 Nov 2015	096	007

Bulletin

The Sun did not produce any C flares in the past 24 hours. Quiet conditions (no C flares) are expected within the next 24 hours. The magnitude of the Interplanetary Magnetic Field gradually rose from 4 to 9 nT. Around 4h UT on November 27, the speed of the solar wind increased rapidly from 260 to 330 km/s. This increase was accompanied by a sector boundary crossing (first away from the Sun, after 4h UT towards the Sun). Over the past 24 hours, geomagnetic conditions have been quiet to unsettled (K Dourbes between 0 and 3; NOAA Kp between 0 and 3). Quiet to unsettled (K Dourbes < 4) conditions are expected on 27, 28 and 29.

Today's estimated international sunspot number (ISN): 057, based on 13 stations.

Solar indices for 26 Nov 2015

Wolf number Catania	///
10cm solar flux	104
AK Chambon La Forêt	011
AK Wingst	001
Estimated Ap	002
Estimated international sunspot number	064 - Based on 26 stations

Noticeable events summary

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

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