Viewing archive of Sunday, 1 September 2002
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 2002 Sep 01 2200 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 2002IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity was at low levels. The largest event
was an optically uncorrelated C6.7 flare at 01/0933 UTC. Region 95
(N08E38) has simplified to a beta-gamma magnetic configuration,
losing the delta configuration in the trailing spot. The
intermediate spots still show some signs of mixing polarities.
Region 87 (S08W61) now has a simple beta magnetic configuration and
has decreased in area and spot count. Three new regions were
numbered today: Region 99 (S03E27), Region 100 (S20E67), and Region
101 (N03E71).
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. Region 95 has the potential for M-class activity.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was at quiet to unsettled levels with one
three-hour period of isolated active conditions at 01/0300 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 02 Sep to 04 Sep
| Class M | 60% | 60% | 50% |
| Class X | 15% | 15% | 10% |
| Proton | 05% | 05% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Sep 181 Predicted 02 Sep-04 Sep 175/175/170 90 Day Mean 01 Sep 169
V. Geomagnetic A Indices
Observed Afr/Ap 31 Aug 007/013 Estimated Afr/Ap 01 Sep 008/010 Predicted Afr/Ap 02 Sep-04 Sep 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 02 Sep to 04 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Unspecified geomagnetic activity 1747Strong far side CME 322jsoc 64Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 6AR 13932 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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| 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 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |