Välja antud: 2015 Apr 02 1239 UTC
Eruptive (C-class flares expected, probability >=50%)
Minor storm expected (A>=30 or K=5)
Quiet
10cm flux | Ap | |
---|---|---|
02 Apr 2015 | 122 | 012 |
03 Apr 2015 | 121 | 028 |
04 Apr 2015 | 124 | 010 |
Five sunspot groups were reported by NOAA today. However, the only C-class flare observed during the past 24 hours (C1.3 flare peaking at 05:34 UT today) occurred in the active region just behind the east solar limb. More C-class flares are expected from this active region. The C1.3 flare was associated with a partial halo CME (angular width around 150 degrees). It is a far side limb event, so it will not arrive at the Earth and will have no geomagnetic consequences. The Earth is currently inside a slow solar wind flow following the passage through the ICME on March 31 - April 1. The interplanetary magnetic field magnitude is still elevated (around 7-8 nT), but a relatively low solar wind speed (around 450 km/s) makes sure that the geomagnetic situation will most probably remain on the quiet to unsettled level in the coming hours. Later today we expect the arrival of a fast flow from a trans-equatorial coronal hole that reached the solar central meridian late on March 30, possibly resulting in a geomagnetic disturbance up to the minor storm level (K = 5).
Today's estimated international sunspot number (ISN): 025, based on 14 stations.
Wolf number Catania | /// |
10cm solar flux | 124 |
AK Chambon La Forêt | 015 |
AK Wingst | 009 |
Estimated Ap | 010 |
Estimated international sunspot number | 028 - Based on 20 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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