X R A Y  S O L A R  F L A R E  R E P O R T  F O R M A T
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  Column  Fmt   Description
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   1- 2   I2    Data code; always 31.
   3- 5   I3    Station code, 777 for GOES
   6- 7   I2    Year
   8- 9   I2    Month
  10-11   I2    Day
  12-13   A2    Asterisks mark record with unconfirmed change.
  14-17   I4    Start time. SEE NOTE 1.
     18   1X
  19-22   I4    End time.
     23   1X
  24-27   I4    Max time.
     28   1X
     29   A1    N or S for north or south latitude of xray flare if known.
                NOTE: From Jan, 2004 and onward, flare location is
                derived by the Space Environment Center from SXI imagery.
  30-31   I2    Latitude of xray flare, if known.
     32   A1    E or W for east or west central meridian distance
                of xray flare, if known.
  33-34   I2    Central meridian distance of xray flare, if known.
  35-37   A3    SXI if data are from SXI imagery, will be blank
                if not from SXI.
  38-59  32X
     60   A1    X-ray class: C,M,X code the maximum power of 10
                the 1-8 Angstrom flux attains. SEE NOTE 2.
  61-63 F3.1    X-ray intensity: a number from 1.0 to 9.9 that
                multiplies the X-ray class.
  64-67   4X
  68-71   A4    Station name abbreviation - GOES.
     72   1X
  73-80   A8    Remarks: Beginning with January 1997 data,
                the integrated flux from event start to end
                will appear here if available (units = J/m*2).
  81-85   I5    NOAA/USAF sunspot region number.
     86   A1    Blank; may be used to add a letter to a region.
  87-88   I2    Central meridian passage year.
  89-90   I2    Central meridian passage month.
  91-94 F4.1    Central meridain passage day.
     95   1X
 96-102 F7.1   Total area in squared arc seconds as determined from
               SXI imagery.  Will be blank if no SXI data available.
    103   1X
104-110 F7.2   Total intensity in data numbers/sec, as determined
               from SXI imagery.  Will be blank if no SXI data available.
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Note 1: If the event is correlated to an optical flare in data prior to
1997, the event times are for the optical event.  For data after 1996,
these event times WILL BE FOR THE XRAY EVENT ONLY. Xray flare locations
were correlated to optical flares through December, 2003. Data are from
the GOES full disk xray monitor supplemented with Solar Xray Imager (SXI)
data since January, 2004.  Positions, areas, and intensities are taken
from SXI imagery using the largest flare event on the disk.  During
multiple flares on the disk, only the largest is selected.

Note 2: X-ray classes are classified according to the order of magnitude
of the peak burst intensity (I) measured at the Earth by satellites in the
0.1 to 0.8 nm band as follows:

        Class              W/m*2                 Ergs/cm*2/s
          B                  I < 10E-6                I < 10E-3
          C         10E-6 <= I < 10E-5       10E-3 <= I < 10E-2
          M         10E-5 <= I < 10E-4       10E-2 <= I < 10E-1
          X                  I >=10E-4                I >=10E-1