Viewing archive of Friday, 1 September 2006
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 2006 Sep 01 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 244 Issued at 2200Z on 01 Sep 2006IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity increased to low levels today. Region
906 (S09W65) produced the largest flare of the period, a C1 x-ray
event that occurred at 01/0506Z. Analysis in white light indicates
that the sunspot growth rate has slowed and the region is classified
as a Dso beta group. Region 905 (S08W81) has shown steady decay
over the period and has been classified an Hax alpha sunspot group.
Updated LASCO imagery depicts a CME resulting from yesterday's B7
x-ray flare that does not appear to be Earth-directed. No new
regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at
very to low levels. Region 906 has the potential to produce C-class
flares.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at predominantly quiet to unsettled levels. A chance
for active to isolated minor storm conditions are possible on 03
September due to a favorably positioned coronal hole.
III. Event Probabilities 02 Sep to 04 Sep
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Sep 077 Predicted 02 Sep-04 Sep 075/075/075 90 Day Mean 01 Sep 077
V. Geomagnetic A Indices
Observed Afr/Ap 31 Aug 006/008 Estimated Afr/Ap 01 Sep 008/010 Predicted Afr/Ap 02 Sep-04 Sep 008/010-012/020-010/012
VI. Geomagnetic Activity Probabilities 02 Sep to 04 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 20% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 35% | 25% |
| Minor storm | 05% | 15% | 10% |
| Major-severe storm | 01% | 10% | 05% |
All times in UTC
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 88.1 +2.2 |
| Last 30 days | 93.5 +31.6 |
This day in history*
Aurora on this day in history
No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation