Vaata kolmapäev, 25 veebruar 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Feb 25 1235 UTC

SIDC Forecast

Valid from 1230 UTC, 25 Feb 2015 until 27 Feb 2015
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
25 Feb 2015114008
26 Feb 2015112007
27 Feb 2015112007

Bulletin

No C-class flares in past 24h. A partial halo CME was observed on February 24 at 10:24 UT (first seen by LASCO-C2). It originates from a partially backsided filament eruption around the southeast limb of the Sun. This CME is not expected to hit the Earth. Shortly after (around 11:00 UT) signs of an eruption are seen in NOAA AR 2289 (mostly dimmings), this may correspond to a slow CME (~300 km/s) directed towards the southwest, seen first at 14:24 UT by LASCO-C2. Additionally, a CME erupted at 23:36 UT (Feb 24) from a filament eruption close to NOAA AR 2291, again the speed was low (~200 km/s). These last two CMEs may have a minor influence on Earth by March 1st. Geomagnetic conditions have ranged from quiet to unsettled due to the vanishing effect of a fast speed stream, these conditions are expected to prevail in the next 48h. TODAY'S ESTIMATED ISN : ///, BASED ON /// STATIONS.

Solar indices for 24 Feb 2015

Wolf number Catania///
10cm solar flux114
AK Chambon La Forêt016
AK Wingst027
Estimated Ap030
Estimated international sunspot number037 - Based on 07 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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