Viewing archive of Monday, 17 July 2000

Geophysical report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2000 Jul 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 199 Issued at 0245Z on 17 JUL 2000 This report is compiled from data received at SWO on 16 JUL
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0120 0127 0132  9087 S11E53 C6.3  1N 370    290
0159 0203 0208  9090 N09E81 M5.5  1N        23
0223 0228 0233              M1.1
0607 0608 0613                       200
0608 0614 0622  9082 S08W25 C3.8  SF 500    67
0630 0631 0632                       130
0636 0640 0643                       120
0841 0841 0841                       140
1035 1035 1035                       160
1245 1245 1245                       230
1612 1612 1616  9085 N12E26       SF 850
1934 1939 1948  9087 S13E48 C6.5  1N 980
2147 2157 2204  9090 N14E76 M1.1  1N
2337 0004 0015  9090 N11E76 M1.4  SN
B. Proton Events
GRTR THAN 10 MEV 14/1045 15/1230 IP 24,000 PFU GRTR THAN 100 MEV 14/1040 14/1620 16/0400 408 PFU
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD RANGED FROM QUIET TO SEVERE STORM LEVELS. MAJOR TO SEVERE STORM CONDITIONS DECREASED EARLY ON 16 JULY. THE GREATER THAN 100 MEV PROTON EVENT THAT BEGAN 14/1040Z, PEAKED AT 410 PFU AT 14/1620Z, AND ENDED AT 16/0400Z. THE GREATER THAN 10 MEV PROTON EVENT CONTINUES TO DECLINE FROM A PEAK OF 24000 PFU'S AT 15/1230Z AND IS CURRENTLY AROUND 180 PFU'S. THE PCA ASSOCIATED WITH THE X5/3B ON 14 JULY PEAKED AT 15/1436Z WITH 49.0 DB AND IS STILL IN PROGRESS. A MODERATE FORBUSH DECREASE CONTINUED THROUGHOUT THE PERIOD.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 219  SSN 268  AFR/AP 032/046   X-RAY BACKGROUND C1.7
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 1.4E+08   GT 10 MEV 2.6E+07 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 1.30E+06 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 6 6 4 4 3 3 2 2 PLANETARY 8 6 4 4 4 3 3 3
F. Comments
  DUE TO THE SOLAR PROTON EVENT, THE GREATER THAN 2 MEV
ELECTRON FLUENCE DATA ARE UNRELIABLE.

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