Vaata neljapäev, 27 aprill 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Apr 27 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 27 Apr 2017 until 29 Apr 2017
Päikesepursked ehk loited

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
27 Apr 2017079010
28 Apr 2017078009
29 Apr 2017078006

Bulletin

There are three active regions, all with alpha configuration of the photospheric magnetic field, presently observed on the visible side of the solar disc. Solar activity is low and only few B-class flares were reported during last 24 hours. We expect solar flaring activity to remain on the same level in the coming hours. No Earth directed CMEs have been observed in the past 24 hours.

Solar wind speed decreased to value of about 450 km/s, and the interplanetary magnetic field magnitude remains on the level of 5nT. During last 48 hours geomagnetic conditions were mostly quiet to unsettled and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 026, based on 19 stations.

Solar indices for 26 Apr 2017

Wolf number Catania046
10cm solar flux080
AK Chambon La Forêt014
AK Wingst010
Estimated Ap010
Estimated international sunspot number040 - Based on 26 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

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