Viewing archive of Saturday, 28 August 1999

Geophysical report

Solar and Geophysical Activity Summary 1999 Aug 28 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 240 Issued at 0245Z on 28 AUG 1999 This report is compiled from data received at SWO on 27 AUG
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0122 0137 0151              M3.0            32
1250 1307 1322  8674 S23W09 M5.5  2N        150
1547 1549 1552  8673 S20W24       SF 100
1623 1636 1707  8674 S31E04 M3.0  2N        110
1755 1755 1756                       1100
1816 1817 1818                       100
2234 2234 2234                       160
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO MILDLY ACTIVE. SOLAR WIND SPEEDS IN EXCESS OF 600 KM/S ARE STILL OCCURRING, LIKELY ORIGINATING FROM A WELL- POSITIONED CORONAL HOLE WEST OF CENTRAL MERIDIAN. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT APPROACHED HIGH LEVELS AT APPROXIMATELY 1500Z.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 223  SSN 194  AFR/AP 009/013   X-RAY BACKGROUND C1.7
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 2.7E+05   GT 10 MEV 1.3E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 3.50E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 3 3 1 3 2 2 2 PLANETARY 3 3 4 2 3 3 3 2
F. Comments
  None


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