Viewing archive of Sunday, 23 June 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jun 23 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
23 Jun 2019	065	003
24 Jun 2019	066	005
25 Jun 2019	066	014

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 decreased from 390 to 320 km/s (DSCOVR). Bz varied between -3 and +3 nT. The interplanetary magnetic field was predominantly directed away the Sun (positive sector). Quiet geomagnetic conditions were observed with the Kp index (NOAA) ranging between 0-1.

Quiet geomagnetic are expected on June 23 and 24. Unsettled to active conditions are then expected on June 25 due to the influence of the high speed stream associated with the two negative coronal holes which began to transverse the central meridian on June 21.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 22 Jun 2019

Wolf number Catania	///
10cm solar flux	066
AK Chambon La Forêt	005
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	000 - Based on 25 stations

Noticeable events summary

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

All times in UTC

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