:Product: 19980422SGAS.txt
:Issued: 1998 Apr 22 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 112 ISSUED AT 0245Z ON 22 APR 1998
THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 21 APR
A.  ENERGETIC EVENTS
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP
1008 1008 1008                       210
B.  PROTON EVENTS:  THE GREATER THAN 10 AND 100 MEV EVENTS REMAIN IN
PROGRESS. THE GREATER THAN 10 MEV EVENT THAT BEGAN AT 20/1400Z
APPEARS TO HAVE PEAKED WITH A MAXIMUM VALUE OF 1700 PFU AT 21/1205,
AND IS CURRENTLY IN A SLOW DECLINE AT APPROXIMATELY 530 PFU. THE
GREATER THAN 100 MEV EVENT PEAKED WITH A MAXIMUM VALUE OF 7.4 PFU
AT 21/1255Z, AND IS CURRENTLY DECLINING BACK NEAR EVENT THRESHOLD.
C.  GEOMAGNETIC ACTIVITY SUMMARY:  THE GEOMAGNETIC FIELD HAS BEEN
MOSTLY QUIET FOR THE PAST 24 HOURS.
D.  STRATWARM:  NONE.
E.  DAILY INDICES:
10 CM 092  SSN 047  AFR/AP 007/007   X-RAY BACKGROUND B3.3
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 1.2E+08   GT 10 MEV 7.2E+07 P/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 1.40E+04 E/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 3 2 2 1 2 1 2 PLANETARY 2 3 1 2 2 2 2 2
F.  COMMENTS:  NONE