Vaata pühapäev, 16 august 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Aug 16 1325 UTC

SIDC Forecast

Valid from 1230 UTC, 16 Aug 2015 until 18 Aug 2015
Päikesepursked ehk loited

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

10cm fluxAp
16 Aug 2015088031
17 Aug 2015086010
18 Aug 2015084010

Bulletin

Solar activity was low with no C-class flares reported. We expect the low solar activity to persist in the coming hours with possible isolated C-class flare. No Earth directed CMEs were observed in the last 24 hours.

The solar wind speed is slowly increasing and it currently amounts to about 550 km/s. The interplanetary magnetic field magnitude is still slightly elevated and currently amounts to about 8 nT. Since arrival of the shock wave and the ICME yesterday morning, the Bz component of the interplanetary magnetic field had long intervals of negative values (down to -10 nT). The strongly negative values of Bz component of the interplanetary magnetic field and the fast solar wind induced geomagnetic storm conditions (NOAA reported Kp=6 and a number of Kp=5 intervals and local stations Dourbes and IZMIRAN reported up to K=5). Currently the Bz component is positive however if the Bz component of the interplanetary magnetic field turns negative we can expect active to unsettled conditions to persist in the coming hours.

Today's estimated international sunspot number (ISN): 036, based on 17 stations.

Solar indices for 15 Aug 2015

Wolf number Catania///
10cm solar flux089
AK Chambon La Forêt055
AK Wingst029
Estimated Ap034
Estimated international sunspot number036 - Based on 22 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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