(Text and format revised 4 October 1999 -- hec)

SOLRAD X-ray FLARES

Each detected solar X-ray flare is listed, giving the starting date and time,
the end time, and the peak flux and time at which the peak occurs for the
0.5-3A, 1-8A, and 8-20A bands.  The starting and ending times are arbitrarily
determined at the time (UT) when the 1-8A flux first rises above and
subsequently drops below the 3x10**-3 ergs cm**-2 s**-1 level.  In general,
a flare will not be listed unless the 1-8A flux remains above the 3x10**-3
ergs cm**-2 s**-1 level for four minutes or more.  The peak flux values given
for the 1-8A and 8-20A bands are based on a 2.0x10**6 degree Kelvin "Gray
Body" approximation and the peak value given for the 0.5-3A band is based on
a 1.0x10**7 degree Kelvin approximation.  All detectors are in units of
ergs cm**-2 s**-1.
                                                                                

C            SOLRAD X-RAY  S O L A R  F L A R E  REPORT FORMAT
C
C ----------------------------------------------------------------------
C  Column  Fmt   Description
C ----------------------------------------------------------------------
C   1- 8   I8    Year, month, day in the YYYYMMDD format
C      9   1X    Blank
C  10-13   I4    Starting time of the flare
C     14   A1    Starting time flag
C  15-17   3X    Blank
C  18-26   E9.2  Peak 0.5-3A flux in "E" format
C     27   A1    Flag for the 0.5-3A peak
C     28   A1    Blank
C  29-32   I4    Time of the 0.5-3A peak
C     33   A1    Flag for this time
C  34-36   3X    Blank
C  37-45   E9.2  Peak 1-8A flux in "E" format
C     46   A1    Flag for 1-8A peak
C     47   1X    Blank
C  48-51   I4    Time of the peak 1-8A flux
C     52   A1    Flag for this time
C  53-55   3X    Blank
C  56-64   E9.2  Value of the peak 8-20A flux in "E" format
C     65   A1    Flag for 8-20A peak
C     66   1X    Blank
C  67-70   I4    Time of the peak 8-20A flux
C     71   A1    Flag for peak time
C     72   1X    Blank
C  73-76   I4    End time for the flare
C     77   A1    Flag for end time
C-----------------------------------------------------------------------
Flags:  
o  Letter E following the time indicates that a data gap precedes this value.
o  Letter D following the time indicates that a data gap follows this value.
o  If there is a letter E or D on any time, then the corresponding data value
   is flagged with D indicating that the true data value may exceed the listed
   value.