home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ftp.sec.noaa.gov
/
2014.05.ftp.sec.noaa.gov.tar
/
ftp.sec.noaa.gov
/
pub
/
warehouse
/
1988_RSGA.tar.gz
/
1988_RSGA.tar
/
1988_RSGA
/
19880918RSGA.txt
< prev
next >
Wrap
Text File
|
2009-06-10
|
1KB
|
38 lines
FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 262
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 18 SEP 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 17/2100Z
TO 18/2100Z: SOLAR ACTIVITY WAS LOW. REGION 5142 (N31W62) GREW
TRAILER SPOTS TO QUALIFY THE GROUP AS A BETA-GAMMA. THE OVERALL
X-RAY AND 10.7 CM FLUX BACKGROUNDS SLOWLY INCREASED OVER THE
LAST THREE DAYS.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW. RETURNING REGION 5126 (S22, L=291) IS EXPECTED IN TWO DAYS.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 17/2100Z TO 18/2100Z:
THE GEOMAGNETIC FIELD WAS AT MINOR STORM TO ACTIVE LEVELS. BRIEF
SEVERE TO MAJOR STORM CONDITIONS OCCURRED AT HIGH LATITUDES THE
FIRST HALF OF THE PERIOD. CORRESPONDING MINOR STORM CONDITIONS
OCCURRED AT MIDDLE LATITUDES. THIS DISTURBANCE MAY HAVE BEEN THE
THE RESULT OF SEVERAL SMALL DISAPPEARING FILAMENTS OF 13 AND 14
SEP.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS
EXPECTED TO BE ACTIVE TO UNSETTLED.
III. EVENT PROBABILITIES 19 SEP-21 SEP
CLASS M 10/15/20
CLASS X 01/01/02
PROTON 01/01/02
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 18 SEP 139
PREDICTED 19 SEP-21 SEP 144/148/152
90 DAY MEAN 18 SEP 151
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 17 SEP 020/034
ESTIMATED AFR/AP 18 SEP 020/040
PREDICTED AFR/AP 19 SEP-21 SEP 016/024-014/020-012/018