Välja antud: 2017 Jul 21 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Quiet (A<20 and K<4)
Quiet
10cm flux | Ap | |
---|---|---|
21 Jul 2017 | 070 | 016 |
22 Jul 2017 | 069 | 017 |
23 Jul 2017 | 069 | 008 |
With no spotted regions on disk, no Solar flaring activity was recorded and this is expected to remain so. A partial halo CME with angular width between 150 and 180 degrees (Cactus reports only around 130 degrees) is observed in SoHO/LASCO C2 imagery from around 18:12UT July 20. The CME originated from just around the Western limb and is directed Westward and hence will not influence Earth. Other CMEs were not recorded in coronagraph data. Solar proton fluxes are at background values and are expected to remain so.
Solar wind speed increased steadily to values of 560 km/s at 4:30UT after which a further increase was recorded with values to almost 750 km/s reported by DSCOVR. Those later values are however rather noisy and possibly not trustworthy. The previously elevated total magnetic field (around 10nT) decreased towards the end of the period to values around 5nT. Solar wind conditions are expected to remain elevated under the continued influence of the observed coronal hole high speed stream. Geomagnetic conditions were mostly quiet to unsettled (local K Dourbes 2-3 and NOAA Kp 1-3) with an isolated active period (NOAA Kp = 4) after midnight. Quiet to unsettled geomagnetic conditions, with possibly an isolated active period, are expected due to the high speed stream influence.
Today's estimated international sunspot number (ISN): 000, based on 23 stations.
Wolf number Catania | 000 |
10cm solar flux | 070 |
AK Chambon La Forêt | 022 |
AK Wingst | 008 |
Estimated Ap | 008 |
Estimated international sunspot number | 000 - Based on 32 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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