:Product: 19990220SGAS.txt
:Issued: 1999 Feb 20 0245 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
JOINT USAF/NOAA SOLAR AND GEOPHYSICAL ACTIVITY SUMMARY
SGAS NUMBER 051 ISSUED AT 0245Z ON 20 FEB 1999
THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 19 FEB
A.  ENERGETIC EVENTS
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP
0803 0803 0803                       340
1441 1441 1447  8458 S19W56       SF 620
1615 1623 1628  8462 N21W52 C3.8  SF 420
1900 1900 1900                       860
2046 2046 2046                       160
2052 2053 2056                       260
2113 2114 2115                       200
2353 0005 0007  8464 N20W11 C1.1  SF 420
B.  PROTON EVENTS:  NONE
C.  GEOMAGNETIC ACTIVITY SUMMARY:  HE GEOMAGNETIC FIELD HAS BEEN AT
MINOR STORM LEVELS THE PAST 24 HOURS. MAJOR STORMING WHICH BEGAN
EARLY YESTERDAY HAS SLOWLY SUBSIDED. THE RADIAL SOLAR WIND SPEED IS
STILL IN EXCESS OF 500 KM/S. ENERGETIC ELECTRON FLUXES AT
GEOSYNCHRONOUS ORBIT ROSE TO HIGH LEVELS MIDWAY THROUGH THE PERIOD.
D.  STRATWARM:  STRATWARM ALERT/FRIDAY/STRATWARM EXISTS.
AN INTENSIFYING LARGE WARM REGION FURTHER EXISTS FROM
ALEUTIAN AREA, NORTHEASTERN SIBERIA WITH THE ADJACENT
ARCTIC ACROSS EASTERN SIBERIA / NORTHERN MONGOLIA TO
BLACK SEA. THE WARM AIR, WITH THE CENTRE OVER EASTERN
SIBERIA,  SPREADING NORTHWESTWARDS, TODAY.
E.  DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES)
10 CM 164  SSN 122  AFR/AP 035/038   X-RAY BACKGROUND B6.0
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 7.9E+06   GT 10 MEV 1.2E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 3.90E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 4 5 5 5 5 4 2 2 PLANETARY 5 5 5 5 5 4 3 3
F.  COMMENTS:  NONE