Viewing archive of Friday, 21 June 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jun 21 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
21 Jun 2019	068	010
22 Jun 2019	069	006
23 Jun 2019	069	004

Bulletin

Solar activity was at very low levels. The Sun remains spotless and no significant flares have been recorded. No Earth directed coronal mass ejections (CMEs) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at very low levels.

The solar wind fluctuated between 330 and 400 km/s (DSCOVR). Bz varied between -5.5 and +8.5 nT. The interplanetary magnetic field was predominantly directed towards the Sun (negative sector). Quiet to unsettled geomagnetic conditions were observed with the Kp index (NOAA) ranging between 1-2 and the local K index (Dourbes) ranging between 2-3.

Quiet to unsettled geomagnetic conditions are expected due to the continued influence of the solar wind streams associated with a series of fragmented negative polarity coronal holes.

Today's estimated international sunspot number (ISN): 000, based on 23 stations.

Solar indices for 20 Jun 2019

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	012
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	000 - Based on 28 stations

Noticeable events summary

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

All times in UTC

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