Sep 18 16:23: IMCOMBINE
  combine = average
  reject = crreject, mclip = yes, rdnoise = rdnoise, gain = gain, hsigma = 5.
  blank = 0.
                Images  Rdnoise   Gain   Offsets
            sim0001.imh      5.    2.5   68   68
            sim0002.imh      5.    2.5   66   66
            sim0003.imh      5.    2.5   64   64
            sim0004.imh      5.    2.5   62   62
            sim0005.imh      5.    2.5   60   60
            sim0006.imh      5.    2.5   58   58
            sim0007.imh      5.    2.5   56   56
            sim0008.imh      5.    2.5   54   54
            sim0009.imh      5.    2.5   52   52
            sim0010.imh      5.    2.5   50   50
            sim0011.imh      5.    2.5   48   48
            sim0012.imh      5.    2.5   46   46
            sim0013.imh      5.    2.5   44   44
            sim0014.imh      5.    2.5   42   42
            sim0015.imh      5.    2.5   40   40
            sim0016.imh      5.    2.5   38   38
            sim0017.imh      5.    2.5   36   36
            sim0018.imh      5.    2.5   34   34
            sim0019.imh      5.    2.5   32   32
            sim0020.imh      5.    2.5   30   30
            sim0021.imh      5.    2.5   28   28
            sim0022.imh      5.    2.5   26   26
            sim0023.imh      5.    2.5   24   24
            sim0024.imh      5.    2.5   22   22
            sim0025.imh      5.    2.5   20   20
            sim0026.imh      5.    2.5   18   18
            sim0027.imh      5.    2.5   16   16
            sim0028.imh      5.    2.5   14   14
            sim0029.imh      5.    2.5   12   12
            sim0030.imh      5.    2.5   10   10
            sim0031.imh      5.    2.5    8    8
            sim0032.imh      5.    2.5    6    6
            sim0033.imh      5.    2.5    4    4
            sim0034.imh      5.    2.5    2    2
            sim0035.imh      5.    2.5    0    0

  Output image = demo0001, ncombine = 35