Prohlížíte si archiv úterý 11. června 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Jun 11 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Sluneční protony

Quiet

	10cm flux	Ap
11 Jun 2019	069	007
12 Jun 2019	068	021
13 Jun 2019	068	008

Bulletin

Solar activity was at very low levels. The Sun was spotless for the 13th consecutive day (SILSO). No coronal mass ejections (CME) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed varied between 300 and 360 km/s, ending the period near 320 km/s. Bz varied between -3 and +3 nT. The interplanetary magnetic field was directed towards the Sun (negative sector). Quiet geomagnetic conditions were observed, with an unsettled episode (12-15UT) recorded at Dourbes.

Mostly quiet geomagnetic conditions are expected until the arrival of the wind stream from the extension of the positive polarity northern polar coronal hole late on 11 or on 12 June. Active conditions are then possible, with a small chance on a minor storming episode.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 10 Jun 2019

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	007
AK Wingst	004
Estimated Ap	002
Estimated international sunspot number	000 - Based on 30 stations

Noticeable events summary

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

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