Het archief bekijken van vrijdag 27 september 2024

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2024 Sep 27 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
27 Sep 2024	181	007
28 Sep 2024	183	007
29 Sep 2024	185	016

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was moderate over the past 24 hours. A total of 10 numbered sunspot groups were identified on the disk over the past 24 hours. The largest flare was an M1.4 one from NOAA AR 3839, peaking at 23:12 UTC on 26 September. This AR is rotating into view over the east limb. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

Coronale massa uitstoten

No Earth directed CMEs were observed in the past 24 hours. A partial halo CME with angular width around 150 degrees erupted on 26 September, first seen by LASCO C2 at 09:12 UTC. This event is backsided and will not arrive to the Earth.

Coronale gaten

A small negative polarity coronal hole crossed central meridian on 26 September, a HSS may be expected at the Earth on 29 September.

Zonnewind

The Earth is inside slow solar wind, with speeds around 360 km/s and an interplanetary magnetic field of about 5 nT. Similar conditions can be expected for the next 48 hours.

Geomagnetisme

The geomagnetic conditions over the past 24 hours were mostly quiet both locally and globally (K_Bel and Kp from 1 to 3). Similar conditions can be expected for the next 24 hours.

Proton flux niveaus

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

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux as measured by GOES 18 went slightly above the 1000 pfu threshold on 25 September, while it remained below it in GOES 16. Similar conditions can be expected for the next 24 hours. The 24h electron fluence was at normal levels, and is expected to remain so.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 162, gebaseerd op 15 stations.

Zon indexen voor 26 Sep 2024

Wolfgetal Catania	184
10cm zonneflux	181
AK Chambon La Forêt	011
AK Wingst	015
Geschatte Ap	014
Geschat internationaal zonnevlekkengetal	144 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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