Viewing archive of Wednesday, 4 December 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Dec 04 1231 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
04 Dec 2019	071	003
05 Dec 2019	070	004
06 Dec 2019	070	003

Bulletin

Solar activity was at very low levels. The visible solar disk was spotless. No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic 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 speed fluctuated between 290 km/s and 330 km/s (ACE). The interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector). Bz varied between -5 and +4 nT.

Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k index (Dourbes) recording values of 0-2 and 0-1, respectively. Quiet conditions are expected to continue.

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 03 Dec 2019

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	004
AK Wingst	002
Estimated Ap	001
Estimated international sunspot number	000 - Based on 26 stations

Noticeable events summary

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

All times in UTC

<< Go to daily overview page