Vaata teisipäev, 4 veebruar 2020 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2020 Feb 04 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 04 Feb 2020 until 06 Feb 2020
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
04 Feb 2020071005
05 Feb 2020071012
06 Feb 2020071018

Bulletin

X-ray flux remained below B level throughout the period. The Sun is spotless and no flaring is expected.

No Earth-directed CMEs have been observed in coronagraph data.

The proton flux levels were at background values and expected to remain so.

Solar wind conditions were nominal. Solar wind speed further decreased from around 380 km/s to around 350 km/s. Total magnetic field was around 5 nT with a variable Bz. The magnetic field phi angle was mostly in the negative sector but tended towards the positive sector lately. Nominal solar wind conditions are expected over the next 24 hours with from noon February 5 onwards enhancements due to the fast flow from the extension of the South polar coronal hole.

Geomagnetic conditions were quiet to unsettled (local K Dourbes 0-2, NOAA Kp 0-3). Mainly quiet to unsettled conditions are expected over the next 24 hours with from noon February 5 onwards, unsettled conditions likely and active periods possible.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 03 Feb 2020

Wolf number Catania///
10cm solar flux072
AK Chambon La Forêt006
AK Wingst004
Estimated Ap004
Estimated international sunspot number000 - Based on 24 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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