Viewing archive of Thursday, 9 March 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Mar 09 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
09 Mar 2017	070	013
10 Mar 2017	070	013
11 Mar 2017	071	008

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 remained under the waning influence of the high speed stream (HSS) from the negative polarity coronal hole (CH). Solar wind speed varied between 570 and 510 km/s, ending the period near 550 km/s. Bz fluctuated between -5 nT and +4 nT. The interplanetary magnetic field was 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 11 stations.

Solar indices for 08 Mar 2017

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	025
AK Wingst	014
Estimated Ap	014
Estimated international sunspot number	000 - Based on 21 stations

Noticeable events summary

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

All times in UTC

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