Viewing archive of Friday, 18 January 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jan 18 1233 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
18 Jan 2019	070	005
19 Jan 2019	070	007
20 Jan 2019	070	007

Bulletin

Solar X-ray flux remained below B level throughout the period. The Solar disk is again spotless and X-ray flux is expected to continue to be below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain so.

Solar wind conditions were slightly elevated with solar wind speed reaching a maximum of 526 km/s but now back at around 450 km/s. Total magnetic field saw a maximum of close to 11nT before starting a gentle decaying trend to a now nominal value below 5nT. Bz was mostly variable with a southward peak of -8nT. The slightly elevated Solar wind conditions are expected to return to an ambient regime.

Geomagnetic conditions were quiet to unsettled (local K Dourbes 0-3, NOAA Kp 1-2) and are expected to be quiet over the next days.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 17 Jan 2019

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	011
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	000 - Based on 21 stations

Noticeable events summary

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

All times in UTC

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