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19881126RSGA.txt
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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 331
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 26 NOV 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 25/2100Z
TO 26/2100Z: SOLAR ACTIVITY WAS LOW. REGION 5254 (S18E55)
IS THE LARGEST REGION AND HAS SOME MAGNETIC COMPLEXITY.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW TO MODERATE. REGION 5254 IS CAPABLE OF M-CLASS ACTIVITY.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 25/2100Z TO 26/2100Z:
THE GEOMAGNETIC FIELD WAS AT UNSETTLED TO ACTIVE LEVELS.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE.
III. EVENT PROBABILITIES 27 NOV-29 NOV
CLASS M 50/50/50
CLASS X 20/20/20
PROTON 20/20/20
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 26 NOV 142
PREDICTED 27 NOV-29 NOV 144/146/148
90 DAY MEAN 26 NOV 162
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 25 NOV 006/007
ESTIMATED AFR/AP 26 NOV 018/018
PREDICTED AFR/AP 27 NOV-29 NOV 010/010-010/008-015/015