Vaata esmaspäev, 25 detsember 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Dec 25 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 25 Dec 2017 until 27 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
25 Dec 2017076007
26 Dec 2017075013
27 Dec 2017074010

Bulletin

Solar activity was low, no C-class flares in past 24 h. There is only one region visible on disk (Catania group 67, NOAA active region 2692) with beta magnetic field configuration. C-class flaring is possible although not very likely.

Proton flux levels are at background values and are expected to remain so. No Earth-directed seems occurred.

Solar wind speed is at 480 km/s with interplanetary magnetic field magnitude of 6 nT. The influence of the high speed stream from a coronal hole is fading. It produced only unsettled levels at planetary levels (Kp up to 3) and isolated active conditions locally at Dourbes (KDourbes up to 4). The coronal hole has irregular shape and is divided in two parts, the southern part (extension of the southern polar coronal hole) may still influence the Earth within 48 h. Quiet to active conditions can be expected.

Today's estimated international sunspot number (ISN): 024, based on 07 stations.

Solar indices for 24 Dec 2017

Wolf number Catania///
10cm solar flux076
AK Chambon La Forêt024
AK Wingst015
Estimated Ap014
Estimated international sunspot number026 - Based on 13 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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