Vaata teisipäev, 24 jaanuar 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Jan 24 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 24 Jan 2017 until 26 Jan 2017
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
24 Jan 2017082002
25 Jan 2017080003
26 Jan 2017078005

Bulletin

Solar activity was very low, with no flares observed during the period. The currently visible sunspot regions continue their decay. A small filament between NOAA 2628's stable leading spot and NOAA 2627 erupted in two steps. The northern part erupted between 24/0445 and 24/07:00UT January, the main part erupted between 24/0930 and 24/1130UT January. No obvious coronal dimming was observed. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Mostly quiet flaring conditions are expected, with a small chance on an isolated C-class event.

Solar wind speed declined from about 440 km/s to values near 320 km/s (ACE), with Bz fluctuating between -5 nT and +4 nT. The interplanetary magnetic field was mostly directed away from the Sun. A small positive equatorial coronal hole (CH) is transiting the central meridian.

The geomagnetic field was at unsettled to quiet levels and is expected to remain so. Starting around 27 January, the arrival of the CH's particle stream may affect the earth environment.

Today's estimated international sunspot number (ISN): 043, based on 09 stations.

Solar indices for 23 Jan 2017

Wolf number Catania///
10cm solar flux084
AK Chambon La Forêt012
AK Wingst006
Estimated Ap005
Estimated international sunspot number059 - Based on 18 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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