Viewing archive of Wednesday, 27 June 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jun 27 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
27 Jun 2018	071	011
28 Jun 2018	070	008
29 Jun 2018	069	008

Bulletin

During last 24 hours, only reported flaring activity were two low B-class flares. We do not expect change of the level of the flaring activity in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons are at the background level.

The maximum value of the solar wind speed, during last 24 hours, was reached at about 23:30 UT on June 26, and it amounted about 670 km/s. The solar wind speed is slowly decreasing and its present value is 550 km/s. The interplanetary magnetic field magnitude amounts about 5 nT. The geomagnetic conditions are presently quiet to unsettled and we expect such geomagnetic conditions to persist in the coming hours.

Today's estimated international sunspot number (ISN): 012, based on 26 stations.

Solar indices for 26 Jun 2018

Wolf number Catania	014
10cm solar flux	071
AK Chambon La Forêt	019
AK Wingst	///
Estimated Ap	024
Estimated international sunspot number	016 - Based on 35 stations

Noticeable events summary

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

All times in UTC

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