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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2017 Jan 05 1230 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

	10cm flux	Ap
05 Jan 2017	072	022
06 Jan 2017	072	043
07 Jan 2017	072	021

Bulletin

A spotless Sun resulted in X-ray flux remaining at background levels throughout the period. A single minor B flare originated from the remnants of Catania group 74 (NOAA 2624). X-ray flux is expected to remain at background levels over the next days. No Earth directed CME's have been observed in coronagraph data. Proton flux levels are at background levels and are expected to remain so.

Solar wind conditions have remained enhanced under the expected continued influence of the negative polarity coronal hole high speed stream. However, Solar wind speed only reached 600 km/s recently by the end of the period. Total magnetic field was in the 6.5-12nT range with Bz variable. Solar wind speed is still expected to increase over the next day and continued enhanced Solar wind conditions over the next days must be anticipated. Geomagnetic conditions were quiet to active (both local K Dourbes and NOAA Kp 1-4) and with the continued enhanced solar wind conditions further occurrences of active conditions and possibly minor storm levels are expected.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 04 Jan 2017

Wolf number Catania	011
10cm solar flux	072
AK Chambon La Forêt	021
AK Wingst	015
Estimated Ap	013
Estimated international sunspot number	000 - Based on 24 stations

Noticeable events summary

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

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