Viewing archive of Friday, 15 March 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Mar 15 1105 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Minor geomagnetic storm expected (A>=30 or K=5)

Solar protons

Quiet

	10cm flux	Ap
15 Mar 2013	125	015
16 Mar 2013	126	009
17 Mar 2013	127	004

Bulletin

Solar activity featured one M1.2 flare originating from NOAA 1692 on March 15th 07:00 UT. Activity is expected to remain eruptive for the next 24 hours. A full halo CME was detected by SOHO LASCO C2 on Friday, March 15th at 07:12 UT which was a result of the above mentioned M1.2 flare. This CME has an angular width of almost 360 degrees and an estimated speed of 710 km/s. Estimated arrival on Earth is Monday, March 18th around 13:00 UT. Solar wind speed has increased to around 450 km/s and interplanetary magnetic field Bz component is around 5 nT. Geomagnetic conditions were quiet to moderate, but is expected to increase to active or storm conditions this evening with the arrival of the CME seen in SOHO LASCO C2 Tuesday, March 12th at 11:00 UT.

Today's estimated international sunspot number (ISN): 085, based on 03 stations.

Solar indices for 14 Mar 2013

Wolf number Catania	///
10cm solar flux	123
AK Chambon La Forêt	///
AK Wingst	004
Estimated Ap	005
Estimated international sunspot number	086 - Based on 21 stations

Noticeable events summary

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

All times in UTC

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