Перегляд архіву четвер, 5 грудня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Dec 05 1231 UTC

SIDC Forecast

Сонячні спалахи

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
05 Dec 2019	070	004
06 Dec 2019	070	006
07 Dec 2019	069	007

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 350 km/s (ACE). The phi angle alternated between the negative and positive sectors over the period. Bz varied between -4 and +3 nT.

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

Today's estimated international sunspot number (ISN): 000, based on 13 stations.

Solar indices for 04 Dec 2019

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	005
AK Wingst	004
Estimated Ap	002
Estimated international sunspot number	000 - Based on 26 stations

Noticeable events summary

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

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