Vaata pühapäev, 31 mai 2020 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2020 May 31 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 31 May 2020 until 02 Jun 2020
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
31 May 2020070010
01 Jun 2020070011
02 Jun 2020069007

Bulletin

During last 24 hours, solar flaring activity was low, without any flares reported. We expect a low level of flaring activity in the coming hours. Isolated B-class flares are possible, while C-class flares are possible but not probable. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level.

The in situ observations show clear signatures of the solar wind originating from the negative polarity coronal hole. It is however, not possible to specify if the source was the extension of the southern polar coronal hole or the small equatorial coronal hole as they both have negative polarity. The solar wind speed is presently 400 km/s and the interplanetary magnetic field magnitude is about 4 nT. The arrival of solar wind originating from the coronal hole induced active geomagnetic conditions. The local station at Dourbes reported interval of K=4 from about 21:00 UT until the 24:00 UT on May 30, while NOAA reported only longer interval of Kp=3. We expect quiet to unsettled geomagnetic conditions in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 20 stations.

Solar indices for 30 May 2020

Wolf number Catania///
10cm solar flux070
AK Chambon La Forêt025
AK Wingst020
Estimated Ap021
Estimated international sunspot number000 - Based on 33 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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