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19881205RSGA.txt
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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 340
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 05 DEC 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 04/2100Z
TO 05/2100Z: SOLAR ACTIVITY WAS LOW. A LARGE FILAMENT SLOWLY
DISAPPEARED FROM THE NORTHWEST QUADRANT LATE IN THE PERIOD.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW. RETURNING REGION 5229 (N33, L-359) SHOULD BE BACK ONTO THE
DISK THE FIRST DAY. IT SUPPORTS INCREASING MAJOR FLARE CHANCES.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 04/2100Z TO 05/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED.
III. EVENT PROBABILITIES 06 DEC-08 DEC
CLASS M 25/30/35
CLASS X 04/05/06
PROTON 08/10/12
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 05 DEC 163
PREDICTED 06 DEC-08 DEC 164/166/169
90 DAY MEAN 05 DEC 159
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 04 DEC 009/011
ESTIMATED AFR/AP 05 DEC 004/007
PREDICTED AFR/AP 06 DEC-08 DEC 010/010-010/010-010/010