Viewing archive of Thursday, 17 October 1996
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 1996 Oct 17 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 291 Issued at 2200Z on 17 OCT 1996IA. Analysis of Solar Active Regions and Activity from 16-2100Z to 17-2100Z THE SOLAR DISK REMAINED SPOTLESS AND SOLAR
ACTIVITY REMAINED VERY LOW. THE MAUNA LOA OBSERVATORY REPORTED
A CORONAL MASS EJECTION NEAR SE30 ON 16 OCT BETWEEN 1711-1929Z.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD REMAIN
VERY LOW FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 16-2100Z to 17-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET. THE RECURRENT
CORONAL HOLE RELATED DISTURBANCE FORECAST TO BEGIN ON 17 OCT
HAS FAILED TO MATERIALIZE. ENERGETIC ELECTRON FLUXES AT
GEOSYNCHRONOUS ORBIT WERE MODERATE TO HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
FORECAST TO BE QUIET TO UNSETTLED. THERE IS A POSSIBILITY THAT
THE RECURRENT STREAM WILL ARRIVE LATE BUT THIS POSSIBILITY
DIMINISHES AS TIME PASSES.
III. Event Probabilities 18 OCT to 20 OCT
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 17 OCT 069 Predicted 18 OCT-20 OCT 069/069/069 90 Day Mean 17 OCT 071
V. Geomagnetic A Indices
OBSERVED AFR/AP 16 OCT 008/008 ESTIMATED AFR/AP 17 OCT 004/008 PREDICTED AFR/AP 18 OCT-20 OCT 010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 18 OCT to 20 OCT
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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