Viewing archive of Thursday, 28 June 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jun 28 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
28 Jun 2018	070	010
29 Jun 2018	069	008
30 Jun 2018	068	010

Bulletin

Solar activity remains to be at the low level, and there were no B-class or stronger flares reported during last 24 hours. The only numbered sunspot group on the visible side of the Sun, Catania sunspot group 88 (NOAA AR 2715), is rotating across the west solar limb which will result in even lower level of the flaring activity in the coming hours. No Earth directed CMEs were observed during last 24 hours, and the solar protons remained at the background level. The solar wind speed is still somewhat elevated and it presently amounts about 520 km/s. The interplanetary magnetic field magnitude is 5 nT. The fast solar wind associated with rather patchy equatorial coronal hole, which reached central meridian in the morning of June 27, might arrive to the Earth on June 30. The geomagnetic conditions remain to be quiet to unsettled and we expect they will not change in the coming hours.

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

Solar indices for 27 Jun 2018

Wolf number Catania	011
10cm solar flux	070
AK Chambon La Forêt	014
AK Wingst	///
Estimated Ap	010
Estimated international sunspot number	009 - Based on 33 stations

Noticeable events summary

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

All times in UTC

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