Viewing archive of Tuesday, 12 June 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jun 12 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
12 Jun 2018	071	008
13 Jun 2018	072	017
14 Jun 2018	072	007

Bulletin

Solar activity was low with the largest flaring a B1.8 flare, peaking at 19:12 UT from the region turning into view at the East limb. This new bipolar region that rotated over the East was numbered Catania group 86. Chances for C flaring remain very low.

No Earth directed CMEs are visible in coronagraph images.

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

Solar wind conditions have been nominal with solar wind speed around 300 km/s and total magnetic field between 2-6 nT. The Bz component of the magnetic field was variable. The magnetic field phi angle indicates a negative sector connection. Solar wind conditions may become slightly disturbed later today and tomorrow due a small coronal hole in the Southern hemisphere.

Geomagnetic conditions were quiet (local K Dourbes and NOAA Kp 0-2). Geomagnetic conditions may become unsettled later today and tomorrow before recovering to quiet again.

Today's estimated international sunspot number (ISN): 011, based on 11 stations.

Solar indices for 11 Jun 2018

Wolf number Catania	000
10cm solar flux	070
AK Chambon La Forêt	010
AK Wingst	///
Estimated Ap	005
Estimated international sunspot number	000 - Based on 19 stations

Noticeable events summary

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

All times in UTC

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