Viewing archive of Wednesday, 27 April 2016
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2016 Apr 27 1230 UTC
SIDC Forecast
Solar flares
C-class flares expected, (probability >=50%)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 27 Apr 2016 | 085 | 007 |
| 28 Apr 2016 | 087 | 007 |
| 29 Apr 2016 | 089 | 007 |
Bulletin
Solar activity is very low, only B-class flaring from NOAA 2536 (Catania 64). C-class flares are possible. Geomagnetic conditions have been quiet. The solar wind speed is at 450 km/s with interplanetary magnetic field magnitude around 5 nT. Quiet geomagnetic conditions are expected.
Today's estimated international sunspot number (ISN): 081, based on 18 stations.Solar indices for 26 Apr 2016
| Wolf number Catania | 075 |
| 10cm solar flux | 085 |
| AK Chambon La Forêt | 013 |
| AK Wingst | 008 |
| Estimated Ap | 006 |
| Estimated international sunspot number | 060 - Based on 31 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
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