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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2013 Mar 22 1236 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
22 Mar 2013	104	002
23 Mar 2013	104	001
24 Mar 2013	104	001

Bulletin

Flaring activity of the last few hours mainly originated from active region NOAA 1692, which is at the west limb now. The largest solar flare was an M1.6 flare which occurred at 21 March 22h UT. A CME was associated with this flare, visible in LASCO as well as in STEREO A and B. The CME seems to propagate to the west. At most we expect a glancing blow of this CME to arrive at Earth. We are currently under influence of a slow solar wind with a speed varying between 350 and 450 km/s and an interplanetary magnetic field with a magnitude of 6 nT. Geomagnetic conditions are quiet and are expected to remain so for the next 48 hours.

Today's estimated international sunspot number (ISN): 033, based on 10 stations.

Solar indices for 21 Mar 2013

Wolf number Catania	///
10cm solar flux	106
AK Chambon La Forêt	009
AK Wingst	014
Estimated Ap	016
Estimated international sunspot number	033 - Based on 19 stations

Noticeable events summary

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

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