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:Product: 20020219SGAS.txt
:Issued: 2002 Feb 19 0245 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 050 Issued at 0245Z on 19 Feb 2002
This report is compiled from data received at SWO on 18 Feb
A. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep
0321 0321 0321 140
0529 0529 0529 200
0531 0537 0537 100
1409 1409 1409 460
2018 2115 2158 9830 S20E16 M1.0 Sf
B. Proton Events: None
C. Geomagnetic Activity Summary: Activity ranged from quiet to
active levels. An active period occurred during 18/2100-2400 UTC.
D. Stratwarm: Stratwarm alert exists Stratwarm Monday
The criteria for a major warming are fulfilled. There are mean zonal
easterly winds at 60N from the 10 HPA level upwards and a reversed
temperature gradient between 60N and the pole from 50 HPA up to 1
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 193 SSN 103 Afr/Ap 011/009 X-ray Background B7.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.8e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 9.50e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 1 2 2 2 2 3 3 4 Planetary 1 2 2 2 1 3 3 4
F. Comments: Afr estimated based on Boulder USGS magnetometer data.