Vaata reede, 18 aprill 2014 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2014 Apr 18 1312 UTC

SIDC Forecast

Valid from 1230 UTC, 18 Apr 2014 until 20 Apr 2014
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
18 Apr 2014183008
19 Apr 2014185006
20 Apr 2014187006

Bulletin

Twelve sunspot groups were reported by NOAA today. NOAA ARs 2035, 2036, and 2037 (Catania numbers 24, 25, and 26 respectively) maintain the beta-gamma configuration of the photospheric magnetic field. Up to very recently, the strongest flare of the past 24 hours was the C4.8 flare peaking at 08:09 UT today in the NOAA AR 2036 (Catania number 25). The CME associated with this flare is narrow and is not expected to arrive at the Earth. The same active region just produced an M7.3 flare peaking at 13:03 UT. The currently available data do not allow us to determine if a CME is associated with this flare. We expect further flaring activity on the C-level, with a good chance for another M-class event. The Earth is currently inside an intermediate-speed solar wind flow (around 440 km/s) with a slightly enhanced (around 6-7 nT) interplanetary magnetic field magnitude. We expect quiet to unsettled geomagnetic conditions (K index below 4), with active conditions (K = 4) possible but unlikely.

Today's estimated international sunspot number (ISN): 134, based on 17 stations.

Solar indices for 17 Apr 2014

Wolf number Catania///
10cm solar flux179
AK Chambon La Forêt013
AK Wingst012
Estimated Ap012
Estimated international sunspot number148 - Based on 25 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

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