Viewing archive of Friday, 29 October 1999

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 1999 Oct 29 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 302 Issued at 0245Z on 29 OCT 1999 This report is compiled from data received at SWO on 28 OCT
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0028 0028 0031                       770
0936 0936 0936                       150
1435 1435 1435                       160
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD VARIED FROM QUIET TO MINOR STORM LEVELS DURING THE DAY. ABOUT 1200Z, SOLAR WIND PLASMA AND MAGNETIC FIELD EXPERIENCED A CHANGE AT THE ACE SPACECRAFT, RESULTING IN THE DISTURBED LEVELS SEEN DURING THE LATTER HALF OF THE PERIOD. THESE DATA SUGGEST A GLANCING BLOW BY A TRANSIENT AS THE CAUSE OF THE ELEVATED ACTIVITY. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS FROM 1330-1630Z, APPROXIMATELY.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 184  SSN 196  AFR/AP 018/016   X-RAY BACKGROUND C1.0
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 4.4E+05   GT 10 MEV 1.4E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 3.20E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 2 3 2 5 4 4 2 PLANETARY 2 1 3 1 5 4 3 3
F. Comments
  None


All times in UTC

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