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
/
19880902RSGA.txt
< prev
next >
Wrap
Text File
|
2009-06-10
|
2KB
|
39 lines
FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 246
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 02 SEP 1988
IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 01/2100Z
TO 02/2100Z: SOLAR ACTIVITY WAS LOW. REGION 5131 (S20W06)
PRODUCED BUT A FEW C-CLASS FLARES, THE LARGEST A C3/0F AT 0803Z.
NO OTHER FLARES WERE OBSERVED DURING THE PERIOD. THE DISK ITSELF
WAS IN A GENERAL STATE OF DECAY AS EVIDENCED BY A 13 FLUX UNIT
DECREASE FROM YESTERDAY IN THE OTTAWA 10 CM. FLUX. THE WHOLE
SUN BACKGROUND X-RAY FLUX WAS DOWN AS WELL. NO NEW REGION WAS
ASSIGNED.
IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE
LOW. OCCASIONAL C-CLASS ACTIVITY MAY STEM FROM REGION 5131
AND REGION 5128 (N22W29). M-CLASS ACTIVITY IS UNLIKELY.
IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 01/2100Z TO 02/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN GENERALLY UNSETTLED AT MID-
LATITUDES. HIGH LATITUDE SITES OBSERVED ACTIVE TO MINOR
STORM LEVELS WITH AN INTERVAL OF MAJOR STORM CONDITIONS
AROUND 0730Z.
IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD
SHOULD BE GENERALLY UNSETTLED TO ACTIVE. EXPECT SHORT-LIVED
SUBSTORMS TO OCCUR DURING LOCAL NIGHTTIME HOURS.
III. EVENT PROBABILITIES 03 SEP-05 SEP
CLASS M 30/30/30
CLASS X 05/05/05
PROTON 05/05/05
PCAF GREEN
IV. OTTAWA 10.7 CM FLUX
OBSERVED 02 SEP 176
PREDICTED 03 SEP-05 SEP 172/168/163
90 DAY MEAN 02 SEP 150
V. GEOMAGNETIC A INDICES
OBSERVED AFR/AP 01 SEP 015/039
ESTIMATED AFR/AP 02 SEP 010/025
PREDICTED AFR/AP 03 SEP-05 SEP 010/020-005/020-010/025