Viewing archive of Thursday, 7 June 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jun 07 1230 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
07 Jun 2018	071	013
08 Jun 2018	071	007
09 Jun 2018	071	008

Bulletin

Over the past 24 hours solar activity has been quiet. A C1.0 flare was produced by Active Region (AR) 2712 peaking at 11:00 UT yesterday. The region was located close to the solar limb. No Earth directed Coronal Mass Ejections (CMEs) have been detected. There are no significant coronal holes or filaments. 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 460 and 370 km/s over the past 24 hours. The total magnetic field strength has increased from around 3 to 11 nT, but now appears to be declining again. The Bz component has fluctuated around 0 nT, but was mainly negative yesterday afternoon, from 16:00 UT, reaching -9 nT before turning positive at 01:00 UT this morning, reaching 10 nT. Geomagnetic conditions ranged between Kp index 1-4 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. with the peak of 4 coinciding with the negative Bz yesterday afternoon. Geomagnetic conditions are expected to be mainly quiet with a small chance of activity while the magnetic field strength is enhanced.

Today's estimated international sunspot number (ISN): 007, based on 23 stations.

Solar indices for 06 Jun 2018

Wolf number Catania	012
10cm solar flux	071
AK Chambon La Forêt	///
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	007 - Based on 33 stations

Noticeable events summary

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

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