Viewing archive of Monday, 25 March 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Mar 25 1211 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
25 Mar 2013	095	001
26 Mar 2013	095	001
27 Mar 2013	097	001

Bulletin

Solar activity is expected to be low for the next 48 hours, with only a slight risk of a C-class flare from NOAA AR 1702 and a new small sunspot area still unnumbered (Catania AR 25). The last 24 hours were very quiet in terms of flaring activity. To be noticed is the eruption of a filament on March 24th, near the central meridian around 10:00 UT, with dimming area forming in the same area a few hours later. Around 1600 UT, LASCO C2 observed a complex CME event, on the West limb. This is a rather slow and long lasting event, and the link with the filament eruption is not clear. A second filament eruption took place to the north-east of Catania AR 25, around 1900 UT. We do not expect noticeable effects on the geomagnetic activity from both events. Geomagnetic conditions are expected to be low for the next 48 hours.

Today's estimated international sunspot number (ISN): 028, based on 05 stations.

Solar indices for 24 Mar 2013

Wolf number Catania	///
10cm solar flux	096
AK Chambon La Forêt	007
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	030 - Based on 06 stations

Noticeable events summary

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

All times in UTC

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