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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2018 Apr 08 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
08 Apr 2018	067	004
09 Apr 2018	068	010
10 Apr 2018	067	011

Bulletin

Over the past 24 hours solar activity has been low with no active regions on the solar disk. No flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. A low latitude negative polarity coronal hole has crossed the central meridian two days ago. Solar activity is expected to remain low over the next 24 hours. Only B-class flares can be expected. Solar wind parametrs variations have been very low. The solar wind speed is below 385 km/s. The total magnetic field strength has fluctuated between 2nT and 5nT. The Bz component has fluctuated between -3.5nT and +4nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Mostly quiet geomagnetic levels are expected for the whole day. Unsettled and even active conditions can be expected from tomorrow due to the influences of a high speed stream coming from the low-latitude negative polarity coronal hole.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 07 Apr 2018

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	008
AK Wingst	005
Estimated Ap	004
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

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