Viewing archive of Thursday, 20 June 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Jun 20 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 171 Issued at 0245Z on 20 Jun 2002 This report is compiled from data received at SWO on 19 Jun
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0834 0834 0834                       120
2054 2054 2055                       430
B. Proton Events
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 146  SSN 127  Afr/Ap 012/016   X-ray Background B4.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.1e+04   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.70e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 3 3 2 2 3 2 3 Planetary 4 3 3 3 3 3 3 4
F. Comments
This message is for users of the NOAA/SEC Space
Weather Operations sunspot region numbers. As you
may have noticed, region number 10000 was assigned
on June 14. Space Weather operations is going
through the sequence of Region numbers as 9998,
9999, 0000, 0001, and so on. SEC's product text
discussions of the active regions will ignore the
leading zeroes (for example, we will say 'Region
number 5' rather than Region number '0005'). However,
the Geoalert product, the Region Report product, as
well as the USAF and IUWDS data exchange codes will
preserve the 4 digit format. The necessity of using
four digits is for operational purposes only. For
historical purposes all regions beyond Region 9999
will be understood to be in a series of region numbers
10000 and higher.

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