Välja antud: 2017 May 24 1311 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
24 May 2017 | 076 | 004 |
25 May 2017 | 075 | 007 |
26 May 2017 | 076 | 013 |
Over the past 24 hours solar activity has been low. There has been one B4.4 flare peaking at 14:21 UT on 23-May-2017, coming from NOAA Active Region (AR) 2660 (McIntosh class:Bxo; Mag.Type:Beta). There are three more decaying NOAA AR on the visible side of the solar disk. Slow partial halo CME, with projected speed of about 192 km/s and angular width of about 122 degree, was detected at 05:24 UT by CATUS on 23-May-2017. The PROBA2/SWAP images analysis indicates strong dimming near solar disk centre as the source of the CME. WSA-ENLIL model predicts the arrival of CME at Earth around noon on 26-May-2017. Integral electron flux for electrons with energies above 2 MeV reached high levels. Integral proton flux for protons with energies above 10 MeV remained at background level. The greater than 2 MeV electron flux is expected to reach high levels today and tomorrow (25-May-2017) in response to elevated solar wind speeds. Then return to the nominal level caused by particles redistribution can be expected on 26-May-2017 due to the possible CME arrival. Solar activity is expected to remain low over the next 24 hours with a probability of C-class flares. The solar wind speed decreased from about 520 km/s to values around 470 km/s during last 24 hours. The total interplanetary magnetic field (IMF) strength, as recorded by the DSCOVR satellite, was around 4 nT. Bz fluctuated between -3 and +3 nT being mostly negative. Geomagnetic conditions were ranged K Dourbes between 1 and 3; NOAA Kp between 1 and 2. The geomagnetic field is expected to be quiet today and tomorrow. Unsettled to active conditions are expected, with a minor storm possibility after noon 26-May-2017 due to the arrival of the 23-May-2017 CME.
Today's estimated international sunspot number (ISN): 024, based on 22 stations.
Wolf number Catania | 067 |
10cm solar flux | 076 |
AK Chambon La Forêt | 014 |
AK Wingst | 010 |
Estimated Ap | 009 |
Estimated international sunspot number | 057 - Based on 31 stations |
Day | Begin | Max | Lõpp | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Puuduvad |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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