Vaata pühapäev, 22 jaanuar 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Jan 22 1259 UTC

SIDC Forecast

Valid from 1230 UTC, 22 Jan 2017 until 24 Jan 2017
Päikesepursked ehk loited

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
22 Jan 2017087010
23 Jan 2017088008
24 Jan 2017086006

Bulletin

In the last 18 hours solar activity decreased and the last C-class flare was C1.8 flare which peaked at 13:26 UT on January 21. The Catania sunspot group 81 (NOAA AR 2628), which was source of the majority of the flaring in the last 48 hours has presently beta-gamma configuration of its photospheric magnetic field and could be the source of the C-class flares, and possibly but not very probably also source of an isolated M-class flare. No Earth directed CMEs were observed during last 24 hours.

The solar wind speed remains to fluctuate around 500 km/s, and the interplanetary magnetic field magnitude is about 5nT. The geomagnetic conditions are quiet to unsettled and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 071, based on 18 stations.

Solar indices for 21 Jan 2017

Wolf number Catania///
10cm solar flux086
AK Chambon La Forêt025
AK Wingst017
Estimated Ap015
Estimated international sunspot number075 - Based on 28 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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