Просмотр архива за понедельник, 2 декабря 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2019 Dec 02 1231 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

Quiet (A<20 and K<4)

Солнечные протоны

Quiet

	10cm flux	Ap
02 Dec 2019	070	003
03 Dec 2019	069	007
04 Dec 2019	069	009

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 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 decreased from around 370 km/s to near 320 km/s by the end of the period (ACE). The interplanetary magnetic field (phi angle) was predominantly directed towards the Sun (negative sector), with some short intervals in the positive sector. Bz varied between -3 and +3 nT.

Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k index (Dourbes) recording values of 0-2. Quiet conditions are expected to continue, with possible unsettled intervals on December 3 and 4, due to the influence of a small extension from the southern polar coronal hole.

Today's estimated international sunspot number (ISN): 000, based on 18 stations.

Solar indices for 01 Dec 2019

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	007
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	000 - Based on 14 stations

Noticeable events summary

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

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