Viewing archive of Wednesday, 20 February 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Feb 20 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 051 Issued at 0245Z on 20 Feb 2002 This report is compiled from data received at SWO on 19 Feb
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
None
C. Geomagnetic Activity Summary
Activity was at quiet to unsettled levels.
D. Stratwarm
Stratwarm Alert Exists Stratwarm Tuesday The circulation remains very disturbed after the recent major warming are now no longer fulfilled, but only narrowly so. There exists a reversal in zonal mean wind from 5 HPA upwards and in zonal mean temperature from 50 HPA upwards.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 189  SSN 130  Afr/Ap 008/004   X-ray Background B7.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.7e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.10e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 1 2 2 2 3 3 2 Planetary 2 1 1 1 1 2 2 1
F. Comments
  Afr estimated, based upon Boulder USGS magnetometer
data.

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