Viewing archive of Saturday, 4 November 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Nov 04 1252 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
04 Nov 2017	072	005
05 Nov 2017	072	007
06 Nov 2017	072	007

Bulletin

The spotless Sun was inactive with X-ray flux remaining below B level and this is expected to continue over the next days. Also proton flux levels were at background values and are expected to remain so. No Earth directed CME's were recorded in coronagraph data. A low latitude extension of the northern polar coronal hole (positive polarity) started transiting the central meridian around midnight and may influence Solar wind conditions from November 7 onwards.

Solar wind continued to be slightly enhanced with solar wind speed between 400-450 km/s. total magnetic field was in the 4-7nT range with Bz variable. Solar wind is expected to remain slightly enhanced over the next 24 hours before returning to nominal conditions. By November 7 we may see a renewed increase of solar wind conditions under the possible influence of a high speed stream from the extension of northern polar coronal hole. Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-3 and local K Dourbes 0-3) and are expected to remain so over the next days.

Today's estimated international sunspot number (ISN): 000, based on 19 stations.

Solar indices for 03 Nov 2017

Wolf number Catania	///
10cm solar flux	073
AK Chambon La Forêt	014
AK Wingst	011
Estimated Ap	009
Estimated international sunspot number	000 - Based on 18 stations

Noticeable events summary

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

All times in UTC

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