Het archief bekijken van maandag 21 augustus 2023

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2023 Aug 21 1231 UTC

SIDC Prognose

Zonnevlammen

C-class flares expected, (probability >=50%)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
21 Aug 2023	146	007
22 Aug 2023	148	007
23 Aug 2023	150	007

Zonnevlekkengebieden en zonnevlammen

There are seven active regions visible on the disk. They all have simple alpha or beta magnetic field configuration. Only C-class flares have occurred in the last 24 hours. The largest flare was a C4.4 flare peaking at 07:53 UTC, from a region rotating into view from the east limb. C-class flares are expected and M-class flares are possible (mostly from the new region), for the next 24 hours.

Coronale massa uitstoten

There were no Earth-directed Coronal Mass Ejections (CMEs) detected in the available coronagraph observations in the last 24 hours.

Zonnewind

The Earth is inside a fast solar wind stream, with speeds around 600 km/s and an interplanetary magnetic field around 5 nT. The interplanetary magnetic field orientation was predominantly in the negative sector (field directed towards the Sun). The solar wind is expected to gradually decrease its speed in the coming days.

Geomagnetisme

During the last 24 hours the geomagnetic conditions were at quiet to unsettled levels (NOAA KP 1-3, K Bel 1-3). Geomagnetic conditions are expected to be at unsettled levels, with isolated active periods possible due to the ongoing high speed stream influence.

Proton flux niveaus

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next days.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux remained below the 1000 pfu threshold as measured by GOES 16. It may increase above this threshold in the next 24 hours. The 24 hour electron fluence was at normal levels and is expected to remain so.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 111, gebaseerd op 20 stations.

Zon indexen voor 20 Aug 2023

Wolfgetal Catania	///
10cm zonneflux	146
AK Chambon La Forêt	013
AK Wingst	012
Geschatte Ap	012
Geschat internationaal zonnevlekkengetal	106 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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