Het archief bekijken van zaterdag 1 juli 2023

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2023 Jul 01 1252 UTC

SIDC Prognose

Zonnevlammen

M-class flares expected (probability >=50%)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
01 Jul 2023	160	007
02 Jul 2023	160	007
03 Jul 2023	160	007

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was at low levels over the last 24 hours with few low C-class flares. The largest flare was a C4.2-class flare produced by the NOAA Active Region AR-3354, which is currently the most complex region on the disc (Beta-gamma-delta). We expect the activity remaining mostly at low levels with several C-class flares, and possible isolated M-class flare in the next 24 hours.

Coronale massa uitstoten

No Earth-directed Coronal Mass Ejections (CME) were observed in the SOHO/LASCO coronograph images over the past 24 hours.

Coronale gaten

A small equatorial coronal hole (negative polarity) has transited the central meridian today.

Zonnewind

The solar wind parameters showed a return to slow solar wind regime. The wind speed decreased form 550 km/s to 430km/h. The total interplanetary magnetic field (Bt) also decreased to values below 7 nT. The southward component (Bz) was fluctuating between -3.8 nT and 6.3 nT being manly positive. The interplanetary magnetic field phi angle was positive, directed outward the Sun.

Geomagnetisme

Geomagnetic conditions were quiet to unsettled (NOAA Kp<4 and K_BEL<4). Geomagnetic activity is expected to remained quiet to unsettled.

Proton flux niveaus

The greater than 10 MeV proton flux was at background levels over the past 24 hours and is expected to remain so for the next 24 hours.

Elektronenfluxen in geostationaire baan

Electron fluxes at GEO: The greater than 2 MeV electron flux was above the 1000 pfu threshold for a short period. It is expected to remain close to the threshold for the next 24 hours. The 24-hour electron fluence was at normal to moderate levels for the past 24 hours and it is expected to remain at these levels for the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 132, gebaseerd op 12 stations.

Zon indexen voor 30 Jun 2023

Wolfgetal Catania	092
10cm zonneflux	159
AK Chambon La Forêt	013
AK Wingst	008
Geschatte Ap	009
Geschat internationaal zonnevlekkengetal	111 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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