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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2017 Mar 10 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
10 Mar 2017	071	013
11 Mar 2017	071	011
12 Mar 2017	071	013

Bulletin

Solar activity was very low. There are currently no sunspot regions on the visible solar hemisphere. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected to continue.

Earth seems to be gradually exiting the high speed stream (HSS) from the negative polarity coronal hole (CH). Solar wind speed declined from its initial 530 km/s to 480 km/s. Bz fluctuated between -6 nT and +4 nT, being predominantly negative starting around 0600UT. The interplanetary magnetic field was mostly directed towards the Sun.

The geomagnetic field was at quiet to active levels. Mostly quiet to unsettled conditions are expected, with still a chance on an active episode.

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 09 Mar 2017

Wolf number Catania	000
10cm solar flux	071
AK Chambon La Forêt	019
AK Wingst	015
Estimated Ap	019
Estimated international sunspot number	000 - Based on 25 stations

Noticeable events summary

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

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