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19880910RSGA.txt
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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 254
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 10 SEP 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 09/2100Z
TO 10/2100Z: SOLAR ACTIVITY HAS BEEN LOW. NEW REGIONS
5146 (N31W67) AND 5147 (S26W33) EMERGED AS SMALL BIPOLAR
SUNSPOT GROUPS.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW TO VERY LOW.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 09/2100Z TO 10/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO ACTIVE LEVELS
FOR THE PAST 24 HOURS.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE ACTIVE ON 11 AND 12 SEPTEMBER DUE TO CORONAL
HOLE EFFECTS.
III. EVENT PROBABILITIES 11 SEP-13 SEP
CLASS M 01/01/01
CLASS X 01/01/01
PROTON 01/01/01
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 10 SEP 114
PREDICTED 11 SEP-13 SEP 110/110/110
90 DAY MEAN 10 SEP 150
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 09 SEP 003/011
ESTIMATED AFR/AP 10 SEP 004/020
PREDICTED AFR/AP 11 SEP-13 SEP 018/025-018/025-007/020