Viewing archive of Thursday, 31 January 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Jan 31 1234 UTC
SIDC Forecast
Valid from 1230 UTC, 31 Jan 2013 until 02 Feb 2013
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 31 Jan 2013 | 097 | 003 |
| 01 Feb 2013 | 096 | 003 |
| 02 Feb 2013 | 096 | 003 |
Bulletin
The all-quiet alert still holds. Catania sunspot group 75/NOAA AR 1663 showed minor flaring activity in the B-level. The solar wind passing the Earth is smooth, not causing any turbulence at all.
Today's estimated international sunspot number (ISN): 034, based on 10 stations.Solar indices for 30 Jan 2013
| Wolf number Catania | 059 |
| 10cm solar flux | 097 |
| AK Chambon La Forêt | 004 |
| AK Wingst | 001 |
| Estimated Ap | 001 |
| Estimated international sunspot number | 036 - Based on 17 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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