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 UTCPrepared 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 OCTA. 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
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