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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Jul 21 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
21 Jul 2018	070	008
22 Jul 2018	070	005
23 Jul 2018	069	006

Bulletin

Solar activity is extremely low without any flaring activity reported during last 24 hours. We do not expect any change of the activity in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons are at the background level.

Solar wind speed has increased and it presently amounts about 510 km/s. The maximum solar wind speed (about 550 km/s), during last 24 hours was reached at about 11:20 UT today. The interplanetary magnetic filed magnitude is presently about 8 nT. The patchy but rather extended equatorial coronal hole (possibly even connected with the southern polar coronal hole), has reached central meridian early this morning. The associated fast solar wind is expected at the Earth in the mid of the day on July 24. The geomagnetic conditions are presently unsettled to quiet and we expect such a geomagnetic conditions to persist in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 12 Stationen.

Solarindizes für den 20 Jul 2018

Wolf-Zahl Catania	000
10cm Solarflux	071
AK Chambon La Forêt	015
AK Wingst	009
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 30 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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