Vaata neljapäev, 20 aprill 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Apr 20 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 20 Apr 2017 until 22 Apr 2017
Päikesepursked ehk loited

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

10cm fluxAp
20 Apr 2017081034
21 Apr 2017081017
22 Apr 2017081017

Bulletin

NOAA AR 2651 has decayed into a beta region and produced no C-class flares in past 24 h, but they remain likely to occur in the coming hours.

No Earth directed Coronal Mass Ejections (CMEs) have been detected (although coronagraph data is unavailable at the moment of writing). Solar protons have remained at background levels over the past 24 hours.

The expected high speed stream has arrived to the Earth with solar wind speeds reaching 585 km/s (but still increasing) and generating active conditions locally (k=4) and moderate storms at planetary level (Kp=6) starting at midnight. The disturbed conditions are expected to continue in the coming 48 h.

Today's estimated international sunspot number (ISN): 029, based on 21 stations.

Solar indices for 19 Apr 2017

Wolf number Catania///
10cm solar flux081
AK Chambon La Forêt024
AK Wingst017
Estimated Ap018
Estimated international sunspot number016 - Based on 30 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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