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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Aug 18 1737 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
18 Aug 2019	067	006
19 Aug 2019	068	009
20 Aug 2019	067	007

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 averaged around 350 km/s over the period. The total interplanetary magnetic field abruptly increased from the values near 6nT till 9 nT around 06 UT today and afterwards gradually decrease till the values around 3 nT. Bz component varied between -5 nT and +3 nT.

Quiet geomagnetic conditions were observed most of the time except 00-03 UT today (August 18) of unsettled geomagnetic conditions. Mostly quiet geomagnetic conditions are expected for the next 48 hours with some isolated episodes of unsettled geomagnetic conditions as the result of an irregular shaped negative polarity coronal hole being in geoeffective position.

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

Solar indices for 17 Aug 2019

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	///
AK Wingst	///
Estimated Ap	///
Estimated international sunspot number	000 - Based on 21 stations

Noticeable events summary

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

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