Viewing archive of Monday, 7 January 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jan 07 1230 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
07 Jan 2019	071	007
08 Jan 2019	070	007
09 Jan 2019	070	004

Bulletin

The solar activity has been quiet over the past 24 hours. The Catania sunspot groups 5 (NOAA active region 2732) is now turning over the west limb. The visible solar disc becomes spotless and no significant flare is expected.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The Earth is currently under the influence of the slightly enhanced solar wind due to the coronal hole that has reached the central meridian on December 31. The wind speed fluctuated between 480 and 566 km/s; the total magnetic field was below 6.6 nT; and the southward component fluctuated between -6 and 6 nT. The enhanced solar wind conditions are expected to persist as long as Earth remains under the influence of the solar wind associated with the coronal hole.

The geomagnetic conditions were unsettled (Kp and K-Dourbes indices reached 3) and it is expected to remain unsettled as the Earth is currently under the influence of the enhanced solar wind.

Today's estimated international sunspot number (ISN): 000, based on 09 stations.

Solar indices for 06 Jan 2019

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	015
AK Wingst	010
Estimated Ap	010
Estimated international sunspot number	000 - Based on 12 stations

Noticeable events summary

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

All times in UTC

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