Viewing archive of Tuesday, 12 February 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Feb 12 1236 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 12 Feb 2013 | 105 | 008 |
| 13 Feb 2013 | 105 | 011 |
| 14 Feb 2013 | 102 | 001 |
Bulletin
We expect quiet conditions to prevail for the solar activity, with a small risk of an isolated C flare from NOAA AR 1670. Geomagnetic conditions are expected to be quiet to unsettled any time now as the southern flank of the CME of Feb. 9 arrives at Earth later today. Geomagnetic conditions should be back to quiet levels by the second half of Feb. 13.
Today's estimated international sunspot number (ISN): 045, based on 06 stations.Solar indices for 11 Feb 2013
| Wolf number Catania | 084 |
| 10cm solar flux | 105 |
| AK Chambon La Forêt | 008 |
| AK Wingst | 006 |
| Estimated Ap | 004 |
| Estimated international sunspot number | 038 - Based on 12 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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