Emesso: 2014 Apr 26 1225 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
10cm flux | Ap | |
---|---|---|
26 Apr 2014 | 122 | 005 |
27 Apr 2014 | 119 | 012 |
28 Apr 2014 | 117 | 005 |
Five low-level C-class flares were observed. They originated from behind the southwest limb (probably NOAA 2035), from sunspot groups NOAA 2038 and NOAA 2045, and from a region which was still behind the northeast limb. No CMEs with an Earth-directed component were observed. There remains a chance on further C-class flares. Solar wind speed declined from about 430 to 360km/s. Bz was weak and mostly negative at -4nT, with brief excursions up to +2nT. The particle stream from a small equatorial coronal hole that passed the central meridian early on 24 April, is expected to arrive at Earth most probably tomorrow. The geomagnetic field has been quiet and expected to remain so. Locally, a brief active interval is possible from the effect of the coronal hole.
Today's estimated international sunspot number (ISN): 034, based on 12 stations.
Wolf number Catania | /// |
10cm solar flux | 125 |
AK Chambon La Forêt | 011 |
AK Wingst | 010 |
Estimated Ap | 010 |
Estimated international sunspot number | 045 - Based on 19 stations |
Day | Begin | Max | Fine | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Nessuna |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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