Viewing archive of Friday, 22 June 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 Jun 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 173 Issued at 2200Z on 22 Jun 2001IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity was low. The largest event was a C6/Sn
event at 22/1828 UTC from Region 9511 (N10E25). Regions 9503
(N17W46). 9504 (N09W42), and 9509 (S09W45) all produced minor
activity during the period. The rest of the sun was mostly quiet and
stable.
IB. Solar Activity Forecast
Solar activity is expected to be at
mostly low to moderate levels. Isolated M-class flares are possible
during the period.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field was at quiet to unsettled conditions. The
greater than 2 MeV electron flux reached high levels during the
period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to remain at quiet to unsettled levels. The greater than 2
MeV electron flux may again reach high levels during the first half
of the forecast period and then is expected to return to moderate to
normal levels.
III. Event Probabilities 23 Jun to 25 Jun
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Jun 204 Predicted 23 Jun-25 Jun 205/200/195 90 Day Mean 22 Jun 174
V. Geomagnetic A Indices
Observed Afr/Ap 21 Jun 011/013 Estimated Afr/Ap 22 Jun 010/008 Predicted Afr/Ap 23 Jun-25 Jun 008/010-008/010-008/012
VI. Geomagnetic Activity Probabilities 23 Jun to 25 Jun
| 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% |
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