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19881125RSGA.txt
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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 330
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 25 NOV 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 24/2100Z
TO 25/2100Z: SOLAR ACTIVITY WAS MODERATE. REGION 5254 (S18E68)
PRODUCED AN IMPULSIVE M1/SN AT 24/2210Z. THIS REGION HAS
ROTATED INTO COMPLETE VIEW AND APPEARS TO BE A MODERATELY LARGE
SUNSPOT GROUP. NEW REGION 5255 (N29E61) WAS NUMBERED.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW TO MODERATE. ADDITIONAL M-CLASS FLARES ARE POSSIBLE FROM
REGION 5254.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 24/2100Z TO 25/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET FOR THE PAST 24 HOURS.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. EVENT PROBABILITIES 26 NOV-28 NOV
CLASS M 50/50/50
CLASS X 20/20/20
PROTON 20/20/20
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 25 NOV 143
PREDICTED 26 NOV-28 NOV 142/144/146
90 DAY MEAN 25 NOV 162
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 24 NOV 003/005
ESTIMATED AFR/AP 25 NOV 003/006
PREDICTED AFR/AP 26 NOV-28 NOV 006/007-010/010-010/007