Viewing archive of Saturday, 24 January 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jan 24 1242 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
24 Jan 2015	121	007
25 Jan 2015	124	007
26 Jan 2015	126	007

Bulletin

Only minor C-class flaring in past 24 h, from NOAA AR 2268. The strongest one was a C3.7 flare with peak at 16:00 UT on January 23. This region will most likely continue to produce C-class flares, with reduced chances of M-class flares. Geomagnetic conditions are quiet. Solar wind is nominal, with speeds of 400 km/s and magnetic field intensities around 5 nT. The fast speed stream from a high latitude coronal hole may influence the Earth in the next 24h, most likely producing active geomagnetic conditions at most.

Today's estimated international sunspot number (ISN): 041, based on 13 stations.

Solar indices for 23 Jan 2015

Wolf number Catania	///
10cm solar flux	121
AK Chambon La Forêt	010
AK Wingst	008
Estimated Ap	008
Estimated international sunspot number	045 - Based on 17 stations

Noticeable events summary

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

All times in UTC

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