Het archief bekijken van dinsdag 20 augustus 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Aug 20 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
20 Aug 2019	068	009
21 Aug 2019	067	011
22 Aug 2019	067	010

Bulletin

The solar activity has been quiet over the past 24 hours. The sun is currently spotless and the X-ray flux remained below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No Earth-directed coronal mass ejections (CME) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours and is expected to remain at low levels.

The solar wind parameters show some enhancements starting from August 20, around 01:00 UT: The wind speed increased from 315 km/s to 425 km/s, the total interplanetary magnetic field reached 10 nT, and the Bz component varied between -7 nT and +7 nT (as recorded by ACE). The solar wind parameters may remain slightly enhanced for the next period due to the effect of a southern coronal hole of negative polarity that was facing Earth on August 18 in about two days.

Mostly quiet geomagnetic conditions were observed, Dourbes observed unsettled conditions (K=3) that can be associated with the effect of the southern coronal hole. Quiet to unsettled conditions are expected for the next period, with small chances of short periods of active conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 20 stations.

Zon indexen voor 19 Aug 2019

Wolfgetal Catania	///
10cm zonneflux	068
AK Chambon La Forêt	007
AK Wingst	004
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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