Viewing archive of Tuesday, 12 February 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Feb 12 1236 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
12 Feb 2013	105	008
13 Feb 2013	105	011
14 Feb 2013	102	001

Bulletin

We expect quiet conditions to prevail for the solar activity, with a small risk of an isolated C flare from NOAA AR 1670. Geomagnetic conditions are expected to be quiet to unsettled any time now as the southern flank of the CME of Feb. 9 arrives at Earth later today. Geomagnetic conditions should be back to quiet levels by the second half of Feb. 13.

Today's estimated international sunspot number (ISN): 045, based on 06 stations.

Solar indices for 11 Feb 2013

Wolf number Catania	084
10cm solar flux	105
AK Chambon La Forêt	008
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	038 - Based on 12 stations

Noticeable events summary

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

All times in UTC

<< Go to daily overview page