Viewing archive of Sunday, 2 November 1997
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 1997 Nov 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 306 Issued at 2200Z on 02 NOV 1997IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z SOLAR ACTIVITY BECAME LOW. REGION 8100 (S19W11)
PRODUCED A C2/SB FLARE AT 02/0304Z WITH MINOR RADIO BURSTS AND A
C2/SF AT 02/2049Z. REGION 8100 ALSO PRODUCED SEVERAL B-CLASS
SUBFLARES. GROWTH BEGAN ANEW IN THIS REGION LATE ON 01 NOV. SEVERAL
SMALL ISLANDS OF OPPOSITE POLARITY EMERGED THROUGHOUT THE REGION
COMPLICATING THE EXISTING BETA GAMMA MAGNETIC CLASSIFICATION. A
SMALL REGION EMERGED NEAR N30E13 AND WAS NUMBERED AS NEW REGION
8102.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE
PREDOMINANTLY LOW. REGION 8100 SHOULD CONTINUE TO PRODUCE IMPULSIVE
SMALL AREA C-CLASS EVENTS NEAR THE SMALL REGIONS OF EMERGING FLUX.
OCCASIONAL SMALL M-CLASS EVENTS ARE POSSIBLE - ESPECIALLY IF GROWTH
AND INCREASE IN MAGNETIC COMPLEXITY IN THE REGION CONTINUE.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
THE GEOMAGNETIC FIELD WAS QUIET. RECENT SOLAR WIND DATA INDICATE A
BENIGN SLOW SPEED FLOW IN THE EARTH'S VICINITY. ENERGETIC ELECTRON
FLUXES AT GEOSYNCHRONOUS ORBIT AGAIN REACHED HIGH LEVELS DURING THE
PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR 03-04 NOV. MOSTLY UNSETTLED
CONDITIONS ARE PREDICTED ON 06 NOV.
III. Event Probabilities 03 NOV to 05 NOV
| Class M | 25% | 25% | 25% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 02 NOV 098 Predicted 03 NOV-05 NOV 100/102/103 90 Day Mean 02 NOV 088
V. Geomagnetic A Indices
OBSERVED AFR/AP 01 NOV 009/008 ESTIMATED AFR/AP 02 NOV 001/008 PREDICTED AFR/AP 03 NOV-05 NOV 005/008-010/010-012/015
VI. Geomagnetic Activity Probabilities 03 NOV to 05 NOV
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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