Vaata esmaspäev, 4 detsember 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Dec 04 1233 UTC

SIDC Forecast

Valid from 1230 UTC, 04 Dec 2017 until 06 Dec 2017
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 Dec 2017069006
05 Dec 2017069043
06 Dec 2017069037

Bulletin

The solar activity remained very quiet. The visible solar disc is spotless and no flare has been recorded in past 24-hour. Quiet flaring conditions are expected.

No Earth directed Coronal Mass Ejection has been observed. The solar protons flux (greater than 10 MeV) remained at nominal levels over the past 24 hours and is expected to remain so.

Solar wind conditions were at nominal levels: The speed of the solar wind was around 300 and 350 km/s; the interplanetary magnetic field magnitude was below 6 nT over the last period except at 04:42 on Dec 4 it reached 9.2 nT; the Bz component of the magnetic field globally varied between +5 nT and -5 nT and reached -7.8 nT at 04:45 on Dec 4. The high speed stream associated with the extension of the northern polar Coronal Hole that has transited the central meridian on Nov 31 is expected to reach Earth with in this period.

The geomagnetic conditions were at the nominal level with K-Dourbes and Kp ranging between 0 and 2. The geomagnetic activity is expected to be unset to active with to arrival of the high speed stream by the end of this period.

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 03 Dec 2017

Wolf number Catania///
10cm solar flux070
AK Chambon La Forêt004
AK Wingst001
Estimated Ap002
Estimated international sunspot number000 - Based on 15 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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