Viewing archive of Tuesday, 30 January 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Jan 30 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 030 Issued at 0245Z on 30 Jan 2001 This report is compiled from data received at SWO on 29 Jan
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
B. Proton Events
A greater than 10 MeV proton event was in progress at the start of the day, and reached a maximum of 49 pfu at 0655Z. The levels declined steadily after maximum and were hovering around 10 pfu at the end of the day.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from quiet to minor storm levels.
D. Stratwarm
Stratwarm alert exists Monday Strong major warming is in progress. The temperature gradient is reversed in the upper stratosphere.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 165  SSN 142  Afr/Ap 013/013   X-ray Background B7.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 8.0e+07   GT 10 MeV 2.1e+06 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 4.20e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 5 4 3 1 2 2 2 2 Planetary 4 4 3 1 1 2 2 3
F. Comments

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