Välja antud: 2015 Apr 07 1230 UTC
Eruptive (C-class flares expected, probability >=50%)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
07 Apr 2015 | 120 | 009 |
08 Apr 2015 | 120 | 018 |
09 Apr 2015 | 120 | 017 |
The Sun released one C3.0 flare during the past 24 hours. It was produced by NOAA AR 2320, peaked at 19:06 UT on April 6 and was associated to a dimming, an EUV wave, a surge, a CME and a Type II radio burst. The CME was first observed by LASCO C2 at 19:24 UT and had an angular extent of about 140 degrees. The plane-of-sky speed derived by CACTUS was 339 km/s, while the Type II burst corresponds to a speed of 691 km/s. This CME may deliver a glancing blow in the second half of April 9. In the next 24 hours, more C flaring is expected, with a slight chance for an M flare, especially from AR 2320 and 2318. Solar wind speed gradually decreased from about 480 to 400 km/s over the past 24 hours, while the Interplanetary Magnetic Field magnitude varied between 1 and 5 nT. Over the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 0 and 3; NOAA Kp between 1 and 2). There is a chance for active geomagnetic levels (K Dourbes = 4) late on April 7 and on April 8, due to a possible glancing blow of the CME of April 4. Quiet conditions with active intervals are possible in the second half of April 9, as a result of a glancing blow from the CME of April 6.
Today's estimated international sunspot number (ISN): 040, based on 18 stations.
Wolf number Catania | /// |
10cm solar flux | 126 |
AK Chambon La Forêt | 010 |
AK Wingst | 005 |
Estimated Ap | 005 |
Estimated international sunspot number | 039 - Based on 19 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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