Prohlížíte si archiv sobota 17. srpna 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Aug 17 1309 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
17 Aug 2019	067	003
18 Aug 2019	067	005
19 Aug 2019	067	008

Bulletin

Solar activity was at very low levels. The Sun was spotless. No Earth-directed coronal mass ejections (CME) were observed during the period. 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 gradually decreased from about 400 km/s till 350 km/s over the period. The total interplanetary magnetic field averaged around 4 nT. Bz varied between -2 nT and +2.5 nT.

Quiet geomagnetic conditions were observed. Quiet geomagnetic conditions are expected for the next 48 hours. Isolated periods of unsettled geomagnetic conditions are possible on August 19 due to influence from a negative polarity coronal hole.

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 16 Aug 2019

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	///
AK Wingst	///
Estimated Ap	///
Estimated international sunspot number	000 - Based on 24 stations

Noticeable events summary

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

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