Vaata neljapäev, 15 detsember 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Dec 15 1259 UTC

SIDC Forecast

Valid from 1230 UTC, 15 Dec 2016 until 17 Dec 2016
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
15 Dec 2016072004
16 Dec 2016070014
17 Dec 2016069006

Bulletin

There are presently two numbered sunspot groups on the visible side of the solar disc, the newly emerged NOAA AR 2618, and NOAA AR 2617 which is rotating across the west solar limb. The only reported flare during last 24 hours was B2.5 flare from NOAA AR 2617, which peaked at 03:30 UT today. We expect solar activity to remain on the same low level, with very small probability for isolated C-class flare. No Earth directed CMEs were observed in the last 24 hours. The solar wind speed is still decreasing and it presently amounts about 410 km/s, and the interplanetary magnetic field magnitude remained at the same level of about 4nT. The fast solar wind associated with the small coronal holes which reached the central meridian in the morning of December 12 and 13 is expected to arrive at the Earth today and tomorrow, respectively. The geomagnetic conditions are presently quiet. We expect unsettled to active conditions starting later today, due to arrival of the fast solar wind.

Today's estimated international sunspot number (ISN): 012, based on 17 stations.

Solar indices for 14 Dec 2016

Wolf number Catania///
10cm solar flux072
AK Chambon La Forêt006
AK Wingst004
Estimated Ap003
Estimated international sunspot number023 - Based on 22 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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