Viewing archive of Wednesday, 27 February 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Feb 27 1254 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Active conditions expected (A>=20 or K=4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 27 Feb 2013 | 103 | 004 |
| 28 Feb 2013 | 105 | 006 |
| 01 Mar 2013 | 107 | 016 |
Bulletin
Under the influence of a recurrent coronal hole, we expect the solar wind speed to increase moderately by March 1 and trigger active geomagnetic conditions. No flaring activity is expected soon. We keep an eye on NOAA AR 1681, which is developing interesting magnetic complexity and on a new, dynamic, active region on the south east limb.
Today's estimated international sunspot number (ISN): 035, based on 07 stations.
Solar indices for 26 Feb 2013
| Wolf number Catania | 046 |
| 10cm solar flux | 099 |
| AK Chambon La Forêt | 009 |
| AK Wingst | 006 |
| Estimated Ap | 005 |
| Estimated international sunspot number | 034 - Based on 13 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
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