Vaata kolmapäev, 18 jaanuar 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Jan 18 1243 UTC

SIDC Forecast

Valid from 1230 UTC, 18 Jan 2017 until 20 Jan 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
18 Jan 2017079016
19 Jan 2017081010
20 Jan 2017082008

Bulletin

Solar activity is very low, without C-class or even B-class flares reported during last 24 hours. We do not expect any significant change in the solar activity, although the isolated, low C-class flares are still possible. No Earth directed Coronal Mass Ejections have been detected, and the solar protons have remained at background levels in the past 24 hours.

This morning solar wind speed started to increase, and it presently amounts about 530 km/s. Simultaneously with the increase of the solar wind speed, increased the temperature and the interplanetary magnetic field strength (presently amounts about 16 nT), while the density decreased. All this indicates arrival of the fast solar wind. Presently the geomagnetic conditions are quiet to unsettled. The arrival of the fast solar wind is expected to induce disturbed geomagnetic conditions in the coming hours (up to K=5).

Today's estimated international sunspot number (ISN): 034, based on 15 stations.

Solar indices for 17 Jan 2017

Wolf number Catania///
10cm solar flux079
AK Chambon La Forêt008
AK Wingst004
Estimated Ap002
Estimated international sunspot number032 - Based on 30 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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