Viewing archive of Tuesday, 19 February 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Feb 19 1146 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
19 Feb 2013	105	004
20 Feb 2013	103	009
21 Feb 2013	102	004

Bulletin

There are currently 9 AR on the solar disk as counted by Catania. (6 AR counted by NOAA). Solar activity was low featering one long duration C2.2 flare peaking at 10:51 UT. Solar activity is expected to rise slightly due to the upcoming Catania AR 95 (NOAA 11678) Which also seemed the source of the long duration flare. Geomagnetic activity was quiet to moderate and is expected to remain so for the next 48 hours. Moderate activity is possible due to the arrival of the CME of February 15th.

Today's estimated international sunspot number (ISN): 074, based on 11 stations.

Solar indices for 18 Feb 2013

Wolf number Catania	///
10cm solar flux	105
AK Chambon La Forêt	012
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	070 - Based on 20 stations

Noticeable events summary

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

All times in UTC

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