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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2020 Mar 10 1235 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
10 Mar 2020	071	013
11 Mar 2020	071	012
12 Mar 2020	071	017

Bulletin

Solar X-ray flux was below B level throughout the period. The only region on disc (Catania group 29, NOAA region 2758) decayed during the period. X-ray flux is expected to remain below C level.

No Earth directed CMEs have been observed in coronagraph data.

Proton flux levels were at background values and are expected to remain so.

Solar wind parameters displayed nominal slow Solar wind conditions. Velocity was between 310-380 km/s. Total magnetic field was around a nominal 5nT with a variable Bz. The phi angle was mostly in the negative sector. Solar wind conditions may become somewhat enhanced by the influence of small extensions of the Southern negative polarity polar coronal hole, though there is significant uncertain if this will actually set through.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-2, local K Dourbes 1-3). Essentially quiet to unsettled conditions are expected over the next days with possible active periods in case Solar wind becomes enhanced under the influence of the Southern polar coronal hole extensions.

Today's estimated international sunspot number (ISN): 000, based on 06 stations.

Solar indices for 09 Mar 2020

Wolf number Catania	014
10cm solar flux	071
AK Chambon La Forêt	010
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	012 - Based on 25 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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