Välja antud: 2017 Jan 28 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
28 Jan 2017 | 080 | 010 |
29 Jan 2017 | 079 | 007 |
30 Jan 2017 | 078 | 012 |
Solar activity was very low, NOAA 2629 producing the sole B-class flare of the period. A potentially active region is near the northeast limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.
Mostly quiet flaring conditions are expected, with a small chance on a C-class event.
Earth remained under the influence of the coronal hole's high speed stream. Solar wind speed varied between 580 and 530 km/s, with Bz fluctuating between -4 and +4 nT. The interplanetary magnetic field was mostly directed away from the Sun. A negative coronal hole is at the central meridian (CM) and may start influencing the earth environment around 31 January, probably preceded by a sector boundary crossing (SBC) around 30 January.
The geomagnetic field was at quiet to active levels and is expected to evolve to quiet to unsettled levels, an active episode not excluded.
Today's estimated international sunspot number (ISN): 028, based on 17 stations.
Wolf number Catania | 033 |
10cm solar flux | 080 |
AK Chambon La Forêt | 020 |
AK Wingst | 021 |
Estimated Ap | 022 |
Estimated international sunspot number | 027 - Based on 22 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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