Vaata pühapäev, 21 jaanuar 2018 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2018 Jan 21 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 21 Jan 2018 until 23 Jan 2018
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
21 Jan 2018071011
22 Jan 2018071007
23 Jan 2018071006

Bulletin

Over the past 24 hours solar activity has been quiet. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar activity is expected to remain low over the next 24 hours with a small chance of C-class flares. The solar wind speed has fluctuated between 400 and 450 km/s over the past 24 hours. The total magnetic field strength has increased from around 6 nT to 11 nT. The Bz component has ranged between -5 and +11 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. The slightly increased solar wind speeds are the result of a High Speed Stream (HSS) produced by a small coronal hole that passed the central meridian a few days ago, the HSS combined with elevated negative Bz may enhance geomagnetic activity over the next day.

Today's estimated international sunspot number (ISN): 000, based on 11 stations.

Solar indices for 20 Jan 2018

Wolf number Catania///
10cm solar flux070
AK Chambon La Forêt009
AK Wingst008
Estimated Ap008
Estimated international sunspot number000 - Based on 10 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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