Viewing archive of Sunday, 5 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 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 339 Issued at 2200Z on 05 Dec 2010IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z
Solar activity has been very low. New Regions 1132
(N12W15), a Dro-Beta type, and Region 1133 (N14E58), an Hrx-Beta
type, spot groups were numbered today. Occasional B class x-ray
events were observed during the period. Region 1132 produced the
periods largest activity with a B5 class x-ray event at 24/2111Z.
IB. Solar Activity Forecast
Solar activity is expected to be
predominately very low with a chance for isolated C class events
from Region 1132 for the next three days (06-08 December).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic field has been quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet on days one and two (06-07 December). Day three
(08 December) is expected to be quiet to unsettled with a slight
chance for isolated active conditions late in the period. The
increase in activity is forecast due to a recurrent coronal hole
high speed stream becoming geoeffective.
III. Event Probabilities 06 Dec to 08 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Dec 088 Predicted 06 Dec-08 Dec 089/089/089 90 Day Mean 05 Dec 082
V. Geomagnetic A Indices
Observed Afr/Ap 04 Dec 001/001 Estimated Afr/Ap 05 Dec 001/001 Predicted Afr/Ap 06 Dec-08 Dec 005/005-005/005-007/007
VI. Geomagnetic Activity Probabilities 06 Dec to 08 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 15% |
| Minor storm | 01% | 01% | 10% |
| Major-severe storm | 01% | 01% | 05% |
All times in UTC
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
AR 14079 85Incoming & Unnumbered Active Regions 1851Unspecified geomagnetic activity 2384Short PBS episode on Aurora sounds 6Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 33
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 | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/02 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 48.5 -92.1 |
| Last 30 days | 116.9 -13.6 |