Viewing archive of Thursday, 9 December 2010
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 2010 Dec 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 343 Issued at 2200Z on 09 Dec 2010IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity was very low.
IB. Solar Activity Forecast
Solar activity is expected to be very
low for the next 3 days (10-12 December).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the first half of day 1 (10 December).
Mostly unsettled conditions with a chance for isolated active
periods are expected through the remainder of the period due to a
recurrent coronal hole.
III. Event Probabilities 10 Dec to 12 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Dec 087 Predicted 10 Dec-12 Dec 087/087/088 90 Day Mean 09 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 08 Dec 003/003 Estimated Afr/Ap 09 Dec 003/005 Predicted Afr/Ap 10 Dec-12 Dec 008/008-010/010-010/010
VI. Geomagnetic Activity Probabilities 10 Dec to 12 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 30% |
| Minor storm | 10% | 20% | 20% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 50% | 50% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 05% | 10% | 10% |
Latest news
Monday, 6 May 2024
X4.5 solar flare
Saturday, 4 May 2024
Sunspot region 3663, X1 solar flare
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Latest forum messages
Incoming Active Regions 233AR3664 52AR3663 237Latest SC25 Predictions 120CME Imagery isn't updating since May 3rd. 10
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 | 2024/05/06 | X4.4 |
| Last M-flare | 2024/05/07 | M2.6 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 159 +66.6 |