Viewing archive of Wednesday, 31 January 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Jan 31 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 031 Issued at 0245Z on 31 Jan 2001 This report is compiled from data received at SWO on 30 Jan
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0048 0055 0109              C3.7     180
B. Proton Events
The greater than 10 MeV proton event that began on 28/2025Z ended at 30/0035Z. The peak flux was 49 PFU at 29/0655Z.
C. Geomagnetic Activity Summary
The geomagnetic field was mostly quiet.
D. Stratwarm
Stratwarm alert exists Tuesday Strong minor warming continues. Temperature gradient reversed at 1 HPA.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 160  SSN 128  Afr/Ap 004/004   X-ray Background B5.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 4.6e+07   GT 10 MeV 3.0e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.80e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 3 0 0 0 1 0 0 Planetary 1 3 0 0 1 1 1 1
F. Comments

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