Viewing archive of Tuesday, 16 July 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jul 16 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
16 Jul 2019	067	005
17 Jul 2019	067	008
18 Jul 2019	068	005

Bulletin

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

The solar wind speed varied between approximately 370 and 500 km/s (ACE). Bz varied between -4 and +4 nT. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector). Quiet to unsettled geomagnetic conditions were observed, with the Kp index (NOAA) ranging between 0-2 and the local K index (Dourbes) ranging between 0-3 over the past 24 hours.

Quiet to unsettled geomagnetic conditions are expected due to the arrival of the solar wind stream associated with the negative polarity equatorial coronal hole, which began to transverse the central meridian on July 11.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 15 Jul 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	014
AK Wingst	011
Estimated Ap	011
Estimated international sunspot number	000 - Based on 20 stations

Noticeable events summary

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

All times in UTC

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