Het archief bekijken van donderdag 23 februari 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Feb 23 1230 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
23 Feb 2017	084	020
24 Feb 2017	084	026
25 Feb 2017	084	008

Bulletin

Catania group 96 (NOAA region 2638) produced the first C flare since the past month, a C4.1 flare peaking at 13:27UT. The amount of mixed polarity field in the middle portion and surroundings of the leading spot has meanwhile diminished. There remains a chance for C flaring from this region. No Earth directed CMEs have been observed in coronagraph data. Proton fluxes are at background levels and expected to remain so.

Since 4:00UT solar wind speed has shown the expected increase under the equatorial coronal hole influence, from around 400 km/s to 450-500 km/s. Total magnetic field increased over the whole period to around 10 nT with Bz variable and not below -5nT. Solar wind conditions are expected to become further enhanced and remain so over the next 48 hours. Geomagnetic conditions were quiet to unsettled (local K Dourbes 1-3, NOAA Kp 1-2). Active periods must be anticipated under the enhanced solar wind conditions with also minor geomagnetic storm periods possible.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 024, gebaseerd op 09 stations.

Zon indexen voor 22 Feb 2017

Wolfgetal Catania	028
10cm zonneflux	083
AK Chambon La Forêt	012
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	026 - Gebaseerd op 16 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