Viewing archive of Tuesday, 1 September 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Sep 01 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 01 Sep 2015 until 03 Sep 2015
Solar flares

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

Geomagnetism

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

Solar protons

Quiet

10cm fluxAp
01 Sep 2015091007
02 Sep 2015091013
03 Sep 2015091007

Bulletin

Solar activity has been very low, no C-class flares in past 24 h. All the active regions on the visible solar disk have simple configuration, only C-class flares can be expected. Geomagnetic conditions are quiet and expected to remain so until the arrival of the fast speed stream from a small equatorial coronal hole within 48 h. The solar wind speed is currently at 350 km/s with interplanetary magnetic field intensity of 5 nT.

Today's estimated international sunspot number (ISN): 040, based on 07 stations.

Solar indices for 31 Aug 2015

Wolf number Catania///
10cm solar flux091
AK Chambon La Forêt011
AK Wingst006
Estimated Ap005
Estimated international sunspot number/// - Based on /// stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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