Viewing archive of Tuesday, 12 March 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Mar 12 1144 UTC

SIDC Forecast

Solar flares

Eruptive (C-class flares expected, probability >= 50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
12 Mar 2013	121	005
13 Mar 2013	120	004
14 Mar 2013	122	004

Bulletin

Solar conditions were quiet in the past 24 hours featuring one C1.6 flare originating from AR NOAA 1689. A still ongoing long duration C2.1 flare is detected by GOES which is associated with a filament eruption around AR NOAA 1690 and NOAA 1691. It is not yet confirmed if the CME is Earth bound. Solar activity is expected to be quiet to eruptive. The interplanetary magnetic field Bz component is low (-5 to 0 nT) and solar wind speed is around 320 km/s. Geomagnetic conditions are quiet and are expected to remain so for the next 48 hours.

Today's estimated international sunspot number (ISN): 074, based on 12 stations.

Solar indices for 11 Mar 2013

Wolf number Catania	///
10cm solar flux	120
AK Chambon La Forêt	006
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	076 - Based on 15 stations

Noticeable events summary

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

All times in UTC

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