Het archief bekijken van woensdag 10 april 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Apr 10 1231 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
10 Apr 2019	079	019
11 Apr 2019	079	011
12 Apr 2019	078	011

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a B2.0 class flare. Active Region (AR) 2738 (Mcintosh class:Cho; Mag. type:Beta) has been most active, the region has shown some evidence of flux emergence and cancellation in HMI magnetogram observations, this may increase flaring activity. Former AR 2737 has moved over the west solar limb. No significant filament channels have been seen on the solar disk. No Earth directed Coronal Mass Ejections (CMEs) have been detected. There are no significant low latitude coronal holes on the solar disk. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a reasonable chance of a C-class flare from AR 2738.

The solar wind speed has fluctuated between 400 and 480 km/s over the past 24 hours, with a jump in speed experienced late on 09-Apr-2019. The total magnetic field strength has fluctuated between 4 and 8 nT. The Bz component has fluctuated around 0 nT, ranging between -8 and +7 nT. Geomagnetic conditions ranged between Kp index 2-4 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. The Kp 4 was produced this morning due to a Bz of -8 nT and solar wind speeds reaching 480 km/s. Geomagnetic conditions are expected to be quiet with periods of unsettled-to-active conditions created by sporadic fluctuations in Bz and the solar wind speed.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 014, gebaseerd op 24 stations.

Zon indexen voor 09 Apr 2019

Wolfgetal Catania	///
10cm zonneflux	079
AK Chambon La Forêt	019
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	013 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina