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19881204RSGA.txt
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FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 339
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 04 DEC 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 03/2100Z
TO 04/2100Z: SOLAR ACTIVITY WAS LOW. NEWLY ASSIGNED REGIONS IN
THE FAR EASTSOUTHEAST PRODUCED SMALL C-CLASS FLARES AND FREQUENT
SURGING.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW. RETURNING REGION 5229 (N33, L-359) SHOULD BE BACK ONTO THE
DISK WITHIN TWO DAYS. INCREASING MAJOR FLARE CHANCES ACCOMPANY
ITS RETURN.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 03/2100Z TO 04/2100Z:
THE GEOMAGNETIC FIELD WAS UNSETTLED.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED.
III. EVENT PROBABILITIES 05 DEC-07 DEC
CLASS M 20/25/30
CLASS X 03/04/05
PROTON 06/08/10
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 04 DEC 146
PREDICTED 05 DEC-07 DEC 147/149/152
90 DAY MEAN 04 DEC 159
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 03 DEC 019/018
ESTIMATED AFR/AP 04 DEC 012/015
PREDICTED AFR/AP 05 DEC-07 DEC 010/015-010/012-010/010