Viewing archive of Saturday, 15 September 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Sep 15 1244 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
15 Sep 2018	070	011
16 Sep 2018	071	010
17 Sep 2018	072	008

Bulletin

Over the past 24 hours solar activity has been quiet. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. There are no significant filaments. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed has fluctuated between 500 and 700 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 6 nT. The Bz component has been mainly negative fluctuating between -4 and +3 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be mostly unsettled due to the negative polarity coronal hole possible influences.

Today's estimated international sunspot number (ISN): 000, based on 28 stations.

Solar indices for 14 Sep 2018

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	019
AK Wingst	018
Estimated Ap	018
Estimated international sunspot number	000 - Based on 32 stations

Noticeable events summary

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

All times in UTC

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