Viewing archive of Thursday, 14 February 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Feb 14 1218 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
14 Feb 2013	095	008
15 Feb 2013	092	001
16 Feb 2013	090	001

Bulletin

Solar activity is expected to be very low for the next 48 hours, with a low probability of an isolated C flare from NOAA AR 1670. Geomagnetic activity is expected to be mostly quiet for the next 48 hours. On Feb.13, unsettled to active conditions were observed locally (Dourbes, K=4) from 18 to 21 UT and at planetary level (Kp=4) from 21 to 24 UT. This corresponds to a short period of Bz excursions close to -10 nT in the same time period. The source of such (modest) activity is unclear at the moment.

Today's estimated international sunspot number (ISN): 021, based on 08 stations.

Solar indices for 13 Feb 2013

Wolf number Catania	093
10cm solar flux	100
AK Chambon La Forêt	027
AK Wingst	016
Estimated Ap	012
Estimated international sunspot number	025 - Based on 16 stations

Noticeable events summary

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

All times in UTC

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