Viewing archive of Friday, 4 September 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Sep 04 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
04 Sep 2015	087	013
05 Sep 2015	088	007
06 Sep 2015	088	007

Bulletin

Solar activity has been very low in past 24 h, no flares above the B level. C-class flares remain possible. The Earth is under the influence of a fast speed stream from a coronal hole. Minor storm conditions were observed at planetary levels at midnight (Kp = 5) and active conditions after, at local levels only active conditions were recorded at Dourbes (K = 4). This situation is expected to continue today.

Today's estimated international sunspot number (ISN): 037, based on 15 stations.

Solar indices for 03 Sep 2015

Wolf number Catania	031
10cm solar flux	087
AK Chambon La Forêt	024
AK Wingst	014
Estimated Ap	012
Estimated international sunspot number	028 - Based on 19 stations

Noticeable events summary

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

All times in UTC

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