Viewing archive of Friday, 4 January 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Jan 04 1259 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
04 Jan 2013	129	001
05 Jan 2013	131	001
06 Jan 2013	133	001

Bulletin

Several C-class flares have been produced in the past 24h, the strongest one being a C1.7 from NOAA AR 1640, peaking at 21:38 UT on January 3. This AR has developed into a beta-gamma-delta magnetic configuration. It will most likely produce more C-class flares, and has potential for M-class events. In the last images from SWAP and SDO an eruption can be seen in NOAA AR 1639 (located at S16 W30) starting at 09:00 UT. There is still not enough coronagraph data to asses a possible Earth-directed CME. Geomagnetic conditions are quiet and expected to remain so.

Today's estimated international sunspot number (ISN): 100, based on 05 stations.

Solar indices for 3 Jan 2013

Wolf number Catania	///
10cm solar flux	129
AK Chambon La Forêt	003
AK Wingst	001
Estimated Ap	001
Estimated international sunspot number	092 - Based on 09 stations

Noticeable events summary

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

All times in UTC

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