Viewing archive of Sunday, 6 October 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Oct 06 1201 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
06 Oct 2013	108	007
07 Oct 2013	109	007
08 Oct 2013	111	007

Bulletin

Flaring activity is expected to be below C-class. Quiet (K<4) geomagnetic conditions are expected. A partial halo CME was observed by LASCO, leaving the Sun towards the SE quadrant on Oct 4, 19:18 UT and an homologous event on Oct 5 07:09 UT. From STEREO imagery, the last event is determined to be back-sided and will thus not have geomagnetic consequences. Arrival at STEREO-B is expected in the coming days. For the first event this is not so clear (STEREO data gap) but we presume it is back-sided too, given its similarity and absence of on-disk associated phenomena.

Today's estimated international sunspot number (ISN): 038, based on 13 stations.

Solar indices for 05 Oct 2013

Wolf number Catania	///
10cm solar flux	106
AK Chambon La Forêt	003
AK Wingst	000
Estimated Ap	001
Estimated international sunspot number	042 - Based on 16 stations

Noticeable events summary

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

All times in UTC

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