Випущено: 2014 Apr 25 1246 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
10cm flux | Ap | |
---|---|---|
25 Apr 2014 | 127 | 006 |
26 Apr 2014 | 125 | 007 |
27 Apr 2014 | 125 | 012 |
NOAA 2035, already behind the west limb, produced an X1.3 flare peaking at 00:27 UT. No obvious proton flux increase has been observed so far. The event was accompanied by an EIT-wave towards the south (PROBA2/SWAP) and a CME (SOHO/LASCO and STEREO). The CME has a speed of about 500 km/s (CACTUS) and is directed away from Earth. There are currently 5 sunspot regions on disk. They are all quite small and have a quite simple magnetic configuration. An active region, responsible for backside CMEs on 22 and 25 April, is approaching the southeast limb. There's still a chance on a C-class flare, in particular from the regions near the solar limb. There's a decreasing chance on a strong flare from NOAA 2035 as it rotates further onto the Sun's farside. Solar wind speed varied between 400 and 500km/s, and Bz between -5 and +4nT being mostly negative between 21:00 and 01:00UT. Hence, quiet geomagetic conditions were observed, with locally a brief active period. A small equatorial coronal hole passed the central meridian last night. The geomagnetic field may be impacted starting around 27 April. Geomagnetic conditions are expected to be quiet, with locally a brief active interval possible.
Today's estimated international sunspot number (ISN): 046, based on 13 stations.
Wolf number Catania | /// |
10cm solar flux | 130 |
AK Chambon La Forêt | 020 |
AK Wingst | 017 |
Estimated Ap | 015 |
Estimated international sunspot number | 053 - Based on 22 stations |
Day | Begin | Max | Кінець | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types |
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Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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