Viewing archive of Saturday, 11 November 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 Nov 11 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 316 Issued at 0245Z on 11 Nov 2000 This report is compiled from data received at SWO on 10 Nov
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0149 0149 0150                       830
B. Proton Events
Event level proton fluxes continued today at the greater than 10 MeV and 100 MeV levels. Flux levels declined throughout the period, with 100 MeV currently just above event threshold at 1.3 pfu, and the 10 MeV currently (as of 11/0100Z) at 279 pfu.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from quiet to major storm levels. The field was initially running at unsettled to active, but a strong interplanetary shock passed the ACE spacecraft at 10/0604Z and was followed promptly by a sudden impulse at 10/0629Z (measuring 67 nT in Boulder), and a period of minor to major storm level activity. This shock most likely is the result of the CME associated with the M7 flare of 8 November, and the solar wind signatures are consistent with an interpretation that the Earth received a glancing, rather than a direct blow from the interplanetary disturbance. The geomagnetic field returned to quiet to unsettled conditions at the end of the period.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 153  SSN 141  Afr/Ap 029/041   X-ray Background C1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 8.9e+08   GT 10 MeV 9.8e+07 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.70e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 3 5 5 4 3 3 2 Planetary 4 3 6 6 6 4 3 3
F. Comments

All times in UTC

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