Viewing archive of Thursday, 3 April 2003

Geophysical report

Joint USAF/NOAA Solar and Geophysical Activity Summary

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0331 0332 0332                       260
0738 0738 0738                       170

B. Proton Events

C. Geomagnetic Activity Summary

D. Stratwarm

E. Daily Indices: (real-time preliminary/estimated values)

10 cm 158  SSN 189  Afr/Ap 021/020   X-ray Background B5.1
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.3e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.60e+08 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 4 4 4 4 3 3 Planetary 2 4 4 4 4 3 3 4

F. Comments

  Beginning 1500 UTC April 8, SEC will begin using data
from the GOES 12 satellite, and stop receiving GOES 8 data. GOES 12
has the new Solar X-Ray Imager (SXI), which will acquire real-time,
operational images of the solar x-ray flux. With the switch from
GOES 8 to GOES 12, the primary/secondary designations will change.
GOES 12 will be the primary satellite for the SXI. All other data,
including magnetometer, XRS x-ray measurements, and energetic
particles, will have GOES 10 as their primary source, with GOES 12
as the secondary source where available. Please see
http://www.sec.noaa.gov/GOES.html for important information on this
changeover.

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