Viewing archive of Saturday, 15 January 2011
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2011 Jan 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 015 Issued at 2200Z on 15 Jan 2011IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z Solar activity was low. New region 1147 (N24E80)
produced a C1 flare at 15/1419Z.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low for the next three days (16 - 18 January).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
Geomagnetic field activity was mostly quiet. An isolated unsettled
period was observed at Boulder between 15/1200 - 1500Z.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be mostly quiet for the next three days (16 - 18
January).
III. Event Probabilities 16 Jan to 18 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 15 Jan 080 Predicted 16 Jan-18 Jan 080/080/080 90 Day Mean 15 Jan 084
V. Geomagnetic A Indices
Observed Afr/Ap 14 Jan 006/007 Estimated Afr/Ap 15 Jan 007/007 Predicted Afr/Ap 16 Jan-18 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 16 Jan to 18 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Latest news
Monday, 23 December 2024
M9.0 solar flare with earth-directed CME
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Latest forum messages
AR 13932 622024/12/23 CME by AR 13932's M8.9 flare. 7Changelog/Featurelog 163Incoming & Unnumbered Active Regions 1366Growth of Cycle 25 779
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/24 | M4.1 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 110.7 -41.8 |
| Last 30 days | 117.3 -41.4 |