Vaata kolmapäev, 26 november 2014 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2014 Nov 26 1227 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Nov 2014 until 28 Nov 2014
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
26 Nov 2014164004
27 Nov 2014156008
28 Nov 2014146009

Bulletin

Four C-class flare were observed, with NOAA 2217 producing the strongest event of the period (C2.9 peaking at 06:17UT). Slowly developing region NOAA 2219 and a new, currently unnumbered, region near the east limb merit some attention, as they were the sources of the other C-class flares. Numerous, but quiet, filaments are present on the solar disk, with the longest measuring 40 degrees and located in the NE quadrant. No Earth- directed CMEs were observed. Further C-class flaring is expected, with a small chance on an isolated M-class flare. Solar wind speed declined from about 400 to 320 km/s. Bz was mostly negative and varied between -6 and +4 nT. The IMF is directed away from the Sun. The geomagnetic field was quiet to unsettled (K<4), and is expected to remain so. Effects from an expected Sector Boundary Crossing and the possible high speed stream from the extension of a coronal hole may result in an isolated active period on 27-28 November.

Today's estimated international sunspot number (ISN): 085, based on 02 stations.

Solar indices for 25 Nov 2014

Wolf number Catania///
10cm solar flux169
AK Chambon La Forêt010
AK Wingst006
Estimated Ap005
Estimated international sunspot number084 - Based on 13 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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