Viewing archive of Sunday, 29 July 2001
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 2001 Jul 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 210 Issued at 2200Z on 29 Jul 2001IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity was low. Several isolated, minor C-class
events occurred during the period. The disk and limbs were mostly
quiet and stable. Region 9560 (N18E46) was numbered today.
Currently, there are only four spotted regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to very low
to low.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field was at quiet to unsettled conditions. The
greater than 2 MeV electron flux at geosynchronous orbit reached
moderate levels during the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to remain at quiet to unsettled conditions. The greater
than 2 MeV flux may reach moderate levels during the first half of
the forecast period.
III. Event Probabilities 30 Jul to 01 Aug
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Jul 117 Predicted 30 Jul-01 Aug 120/120/120 90 Day Mean 29 Jul 152
V. Geomagnetic A Indices
Observed Afr/Ap 28 Jul 002/005 Estimated Afr/Ap 29 Jul 008/007 Predicted Afr/Ap 30 Jul-01 Aug 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 30 Jul to 01 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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