Viewing archive of Tuesday, 15 January 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Jan 15 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 015 Issued at 0245Z on 15 Jan 2002 This report is compiled from data received at SWO on 14 Jan
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0120 0136 0144  9775 S07W52 M1.0  Sf
0152 0156 0203  9782 N05E44 M1.7  2n        140
0529 0627 0825              M4.4                   II
2235 2246 2258  9775 S05W65 M1.1  Sf
B. Proton Events
Particle fluxes for >10MeV protons were enhanced, but remained below event thresholds.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled. High speed stream effects from a favorably positioned coronal hole appeared to wane, with falling solar wind velocities over the course of the period. Particle fluxes for >2MeV electrons were enhanced, but remained below event thresholds.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 229  SSN 191  Afr/Ap 010/008   X-ray Background C2.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.3e+07   GT 10 MeV 5.6e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.90e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 2 2 2 3 3 3 1 Planetary 3 2 1 2 3 3 2 2
F. Comments
  Afr estimated from Boulder A.

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