Vaata kolmapäev, 25 september 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Sep 25 1242 UTC

SIDC Forecast

Valid from 1230 UTC, 25 Sep 2013 until 27 Sep 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
25 Sep 2013110006
26 Sep 2013110005
27 Sep 2013110006

Bulletin

NOAA active region 1846/ Catania 79 produced a C1.1 flare on September 24. Although the chances for more C-flares are small, we end the all-quiet- alert. ACE data show now a clear coronal hole signature. The solar wind plasma has a speed just below 450 km/s. It took this plasma around 4 days to bridge the distance Sun-Earth. On September 20, a northern coronal hole passed the central meridian. The co-rotating interaction region (CIR) followed by a fast wind measured by ACE, is probably linked to this hole. The CIR was responsible for 1 interval of Kp=4 on September 24. We expect quiet geomagnetic conditions, with Kp below 3.

Today's estimated international sunspot number (ISN): 052, based on 19 stations.

Solar indices for 24 Sep 2013

Wolf number Catania073
10cm solar flux110
AK Chambon La Forêt020
AK Wingst012
Estimated Ap011
Estimated international sunspot number046 - Based on 24 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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