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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 328
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 23 NOV 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 22/2100Z
TO 23/2100Z: SOLAR ACTIVITY WAS LOW. ONLY A FEW LOW LEVEL
C-CLASS X-RAY FLARES WERE OBSERVED DURING THE PAST 24 HOURS.
NEW REGION 5252 (S28E03) WAS NUMBERED TODAY.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW. THERE IS A SLIGHT CHANCE OF AN ISOLATED M-CLASS FLARE
FROM REGION 5240 (N21W61) BEFORE IT CROSSES THE WEST LIMB.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 22/2100Z TO 23/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN AT QUIET LEVELS FOR
THE PAST 24 HOURS.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO MOSTLY UNSETTLED.
III. EVENT PROBABILITIES 24 NOV-26 NOV
CLASS M 20/20/20
CLASS X 01/01/01
PROTON 01/01/01
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 23 NOV 139
PREDICTED 24 NOV-26 NOV 135/130/125
90 DAY MEAN 23 NOV 162
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 22 NOV 004/006
ESTIMATED AFR/AP 23 NOV 005/006
PREDICTED AFR/AP 24 NOV-26 NOV 005/008-015/015-010/012