Viewing archive of Saturday, 23 October 1999

Geophysical report

Solar and Geophysical Activity Summary 1999 Oct 23 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 296 Issued at 0245Z on 23 OCT 1999 This report is compiled from data received at SWO on 22 OCT
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0825 0825 0826                       140
0853 0000 0858                                     II
1147 1147 1147                       650
1209 1209 1210                       2100
1238 1240 1244                       680
1300 0000 1319                                     II
1615 1616 1616                       160
1640 1640 1640                       150
1753 1754 1754                       410
1836 1836 1837                       150
1908 1908 1909                       430
1924 1929 1935  8739 S11E47 C2.7  1F 680
2140 2140 2140                       540
2148 2148 2149                       130
2329 2330 2330                       100
B. Proton Events
None
C. Geomagnetic Activity Summary
FIELD ACTIVITY VARIED FROM UNSETTLED TO SEVERE STORM LEVELS DUE TO CORONAL MASS EJECTION EFFECTS. THE MOST INTENSE ACTIVITY OCCURRED DURING 22/0500 - 0900Z WITH MAJOR TO SEVERE STORM LEVELS DETECTED AT MIDDLE AND HIGH LATITUDES. FIELD ACTIVITY GRADUALLY DECREASED TO UNSETTLED TO MINOR STORM LEVELS DURING THE SECOND HALF OF THE PERIOD.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 160  SSN 153  AFR/AP 054/087   X-RAY BACKGROUND C1.1
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 1.1E+06   GT 10 MEV 1.3E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 2.70E+06 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 6 6 7 5 4 4 3 3 PLANETARY 7 8 8 6 4 4 4 3
F. Comments
  None


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