Het archief bekijken van donderdag 18 juli 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Jul 18 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
18 Jul 2019	068	005
19 Jul 2019	068	005
20 Jul 2019	067	005

Bulletin

Solar activity was at very low levels. The Sun remains spotless and no flares have been observed. 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. Solar activity is expected to remain at very low levels.

The solar wind speed gradually decreased over the period from 460 to around 360 km/s (ACE). The Bz varied between -3 and +2 nT. During the first half of the period the interplanetary magnetic field was predominantly directed away from the Sun (positive sector) but switched to be mostly in the negative sector from 00:00 UT July 18 . Quiet to unsettled geomagnetic conditions were observed, with the Kp index (NOAA) ranging between 0-2 and the local K index (Dourbes) ranging between 0-3 over the past 24 hours.

Quiet geomagnetic conditions are expected with possible isolated unsettled intervals.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 21 stations.

Zon indexen voor 17 Jul 2019

Wolfgetal Catania	000
10cm zonneflux	068
AK Chambon La Forêt	009
AK Wingst	007
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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