Vaata kolmapäev, 16 september 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Sep 16 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 16 Sep 2015 until 18 Sep 2015
Päikesepursked ehk loited

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Quiet

10cm fluxAp
16 Sep 2015106012
17 Sep 2015108015
18 Sep 2015108026

Bulletin

NOAA 2415, currently the most complex sunspot region on the solar disk, produced the strongest flare of the period (C3.0 flare peaking at 02:24UT). The other 4 regions were mostly quiet, with NOAA 2414 producing a single C1 flare. No earth-directed coronal mass ejections have been observed.

More C-class flares are expected, with a small chance on an M-class flare from NOAA 2415.

Solar wind speed gradually declined from values near 520 km/s to its current 470 km/s. Bz oscillated between -6 and +6 nT, with the interplanetary magnetic field pointing away from the Sun. Quiet to unsettled conditions were observed, with a single active episode at Dourbes (15:00UT). The trailing transequatorial extension of a wide northern coronal hole is transiting the central meridian.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an active episode. Minor geomagnetic storming is expected on 18 and 19 September.

Today's estimated international sunspot number (ISN): 083, based on 08 stations.

Solar indices for 15 Sep 2015

Wolf number Catania073
10cm solar flux101
AK Chambon La Forêt///
AK Wingst018
Estimated Ap024
Estimated international sunspot number066 - Based on 23 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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