Viewing archive of Wednesday, 2 February 2005
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 2005 Feb 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 033 Issued at 2200Z on 02 Feb 2005IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity was very low. Region 727 (S08W84) is
rotating quietly around the west limb. Region 729 (S10W10), the only
other sunspot group on the visible disk, is in slow decay. No
significant activity was observed on the visible disk or limb.
IB. Solar Activity Forecast
Solar activity is expected to continue
at very low levels on 03 and 04 February. Old Region 720 (N13,
L=178), which produced several major flares during its previous
transit, is due to rotate onto the visible disk on 05 February.
Expect increased solar activity levels following the return of this
active region.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic field was quiet to unsettled. Solar wind speed
remains slightly elevated, ranging between 500 - 550 km/s. The
greater than 2 MeV electron flux at geosynchronous orbit was at high
levels again today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled. Isolated active periods are
possible at high latitudes.
III. Event Probabilities 03 Feb to 05 Feb
| Class M | 05% | 05% | 15% |
| Class X | 01% | 01% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Feb 082 Predicted 03 Feb-05 Feb 080/085/100 90 Day Mean 02 Feb 101
V. Geomagnetic A Indices
Observed Afr/Ap 01 Feb 004/006 Estimated Afr/Ap 02 Feb 006/007 Predicted Afr/Ap 03 Feb-05 Feb 008/008-005/008-005/005
VI. Geomagnetic Activity Probabilities 03 Feb to 05 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
IMF - BT strength 6AR3654 1What are these long and thin eruptions? 6AR 3637, 3638, 3643 89Unproven theories 341
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/25 | M1.3 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 135.5 +27.6 |