Vaata kolmapäev, 30 september 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Sep 30 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 30 Sep 2015 until 02 Oct 2015
Päikesepursked ehk loited

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Warning condition (activity levels expected to increase, but no numeric forecast given)

10cm fluxAp
30 Sep 2015130006
01 Oct 2015120008
02 Oct 2015110007

Bulletin

Solar flaring activity has slightly reduced, though there were still two M1 flares (M1.1 peaking at 19:24 UT and M1.3 at 10:58 UT) originating from NOAA active region (AR) 2422. In addition, NOAA AR 2420, 2423 and 2427 contributed to the solar activity with a few C-class flares. No significant associated CME was observed in current coronagraphic data. More (low) M-class flares are expected, mainly from NOAA AR 2422, which still has a beta-gamma-delta configuration. NOAA ARs 2427 and 2420 show flux emergence and also do have flaring potential. Due to the position of NOAA ARs 2422 and 2423, we still retain the warning level for a potential proton event. The Earth is still inside a slow (values between 320 and 360 km/s) solar wind flow and the interplanetary magnetic field magnitude remains around 5 nT. The geomagnetic conditions are quiet (K<3) to unsettled (K=3) and are mainly expected to remain so. There is a some chance for isolated time slots of active conditions (K=4).

Today's estimated international sunspot number (ISN): 091, based on 24 stations.

Solar indices for 29 Sep 2015

Wolf number Catania///
10cm solar flux129
AK Chambon La Forêt006
AK Wingst007
Estimated Ap006
Estimated international sunspot number108 - Based on 24 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
29192019241927S20W36M1.11B39/2422III/2
30104910591113----M1.3--/2422

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

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