Viewing archive of Thursday, 9 May 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 May 09 1220 UTC
SIDC Forecast
Solar flares
Eruptive (C-class flares expected, probability >=50%)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 09 May 2013 | 127 | 007 |
| 10 May 2013 | 127 | 007 |
| 11 May 2013 | 128 | 007 |
Bulletin
Flaring activity remains at low level. A C3.4 flare peaked at 05:23 UT in NOAA AR 1734 (Cat 59). More C-class flaring can be expected in the coming days, with a slight chance for an M-flare. Two filament eruptions are visible in AIA 304 data around 05:20 UT, one to the north and one to the south. Several CMEs were observed in coronagraph data, but none are earth- directed. Geomagnetic conditions remain quiet. The solar wind speed remains elevated (around 500 km/s) due to the influence of a coronal hole.
Today's estimated international sunspot number (ISN): 078, based on 11 stations.Solar indices for 08 May 2013
| Wolf number Catania | /// |
| 10cm solar flux | 127 |
| AK Chambon La Forêt | 012 |
| AK Wingst | 009 |
| Estimated Ap | 008 |
| Estimated international sunspot number | 082 - Based on 18 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Radio burst types | Catania/NOAA | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
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