Välja antud: 2015 Apr 28 1230 UTC
Eruptive (C-class flares expected, probability >=50%)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
28 Apr 2015 | 100 | 014 |
29 Apr 2015 | 100 | 016 |
30 Apr 2015 | 100 | 018 |
Only three active regions (AR) are visible on the solar disk. Flaring activity was limited to an impulsive C1.9 flare from NOAA AR 2331, peaking at 5:19 UT on April 28. A filament eruption occurred from 2:55 UT, April 28 on near N10E50. Coronagraphic images are not available yet to analyze any associated CME. Further flaring at the C-level is expected. Earth is currently inside a slow solar wind (speed in the range 280-350 km/s). The magnitude of the interplanetary magnetic field (IMF) is stable near 7nT, with a mainly negative Bz and a negative (toward) phi angle. Quiet to unsettled (local K=0 to 3 at Dourbes) geomagnetic conditions were observed and are largely expected to remain so. There is some chance for a few time slots of active (K=4) to minor storm (K=5) conditions, due to an expected flow from a positive polarity coronal hole, on April 29 and 30.
Today's estimated international sunspot number (ISN): 032, based on 17 stations.
Wolf number Catania | /// |
10cm solar flux | 108 |
AK Chambon La Forêt | 010 |
AK Wingst | 007 |
Estimated Ap | 006 |
Estimated international sunspot number | 035 - Based on 25 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
Kõik ajad UTC-s
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