Het archief bekijken van zondag 9 juli 2023

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2023 Jul 09 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
09 Jul 2023	162	008
10 Jul 2023	160	010
11 Jul 2023	158	008

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was low but frequent during the last 24 hours. The largest flare was an C5.7 flare, peaking at 00:09 on July 09, associated with NOAA AR 3366 (beta class). NOAA AR 3361 (beta-delta class) is currently the largest and most complex active region on the visible solar disc but produced only low level C-class flares in the last 24 hours. Low flaring activity was also produced by NOAA AR 3355 (alpha class), NOAA AR 3359 (beta class), NOAA AR 3363 (beta class), and by NOAA AR 3364 (alpha class). Other regions on the disc did not show any significant flaring activity. The solar flaring activity is expected to be at low levels over the next 24 hours with C-class flares likely and M-class flares possible.

Coronale massa uitstoten

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

Zonnewind

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were slightly elevated. The solar wind speed ranged between 480 km/s and 520 km/s. The total interplanetary magnetic field varied between 3 and 7 nT. The southward component of the interplanetary magnetic field fluctuated between -3 nT and 6 nT. Solar wind parameters are expected to be slightly elevated over the next 24 hours due to the positive polarity CH HSS influence.

Geomagnetisme

During last 24 hours the geomagnetic conditions were quiet globally (NOAA KP 0-1). Locally quiet to unsettled conditions were observed over Belgium (K-Bel=1-3). Geomagnetic conditions are expected at quiet to unsettled levels during next days, due to HSS influence.

Proton flux niveaus

The greater than 10 MeV proton was at the nominal levels in the past 24 hours. The proton flux is expected to remain below 10 pfu threshold over the next day, with a small chance that a particle event occurs in association with an X-class flare or a coronal mass ejection.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux was below the 1000 pfu threshold. It is expected to remain below 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: 181, gebaseerd op 18 stations.

Zon indexen voor 08 Jul 2023

Wolfgetal Catania	///
10cm zonneflux	161
AK Chambon La Forêt	006
AK Wingst	008
Geschatte Ap	007
Geschat internationaal zonnevlekkengetal	168 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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