Het archief bekijken van zondag 12 juli 2020

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2020 Jul 12 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
12 Jul 2020	068	005
13 Jul 2020	068	009
14 Jul 2020	068	014

Bulletin

Solar activity was at very low levels and is expected to remain so. The solar disk was spotless. Old active region NOAA 2766 was the source of two A2 flares peaking on 11 July at resp. 10:20UT and 20:50UT. Coronal dimming and weak EIT waves were observed, but the associated CMEs were very faint.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

Solar wind speed was on a slightly declining trend from initial values near 330 km/s to 290 km/s by the end of the period (DSCOVR and ACE). Bz varied between -3 and +1 nT. The direction of the interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be mostly quiet, with unsettled intervals possible on 12-13 July from coronal hole wind stream effects, and on 14 July from a glancing blow from the 09 July CME. An isolated active interval is not excluded.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 28 stations.

Zon indexen voor 11 Jul 2020

Wolfgetal Catania	///
10cm zonneflux	069
AK Chambon La Forêt	005
AK Wingst	003
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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