Vydáno: 2017 Feb 23 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
23 Feb 2017 | 084 | 020 |
24 Feb 2017 | 084 | 026 |
25 Feb 2017 | 084 | 008 |
Catania group 96 (NOAA region 2638) produced the first C flare since the past month, a C4.1 flare peaking at 13:27UT. The amount of mixed polarity field in the middle portion and surroundings of the leading spot has meanwhile diminished. There remains a chance for C flaring from this region. No Earth directed CMEs have been observed in coronagraph data. Proton fluxes are at background levels and expected to remain so.
Since 4:00UT solar wind speed has shown the expected increase under the equatorial coronal hole influence, from around 400 km/s to 450-500 km/s. Total magnetic field increased over the whole period to around 10 nT with Bz variable and not below -5nT. Solar wind conditions are expected to become further enhanced and remain so over the next 48 hours. Geomagnetic conditions were quiet to unsettled (local K Dourbes 1-3, NOAA Kp 1-2). Active periods must be anticipated under the enhanced solar wind conditions with also minor geomagnetic storm periods possible.
Today's estimated international sunspot number (ISN): 024, based on 09 stations.
Wolf number Catania | 028 |
10cm solar flux | 083 |
AK Chambon La Forêt | 012 |
AK Wingst | 010 |
Estimated Ap | 010 |
Estimated international sunspot number | 026 - Based on 16 stations |
Day | Begin | Max | Konec | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Žádný |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
Všechny časy v UTC
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