Solution to fix the Footer vs Roof  locations in  Northings/Eastings

A simple sign mistake was made, that is all.

Here is the proof:

1- I assume the Roof is surveyed correctly --- this is the starting assumption.

2- I then use the offsets between the Footer and the Roof as measured by Tom and Glenn separately:

    Tom's numbers:    XRoof = + 6.72m, YRoof = - 6.04m from the Footer

    Glenn's numbers:  XRoof = + 6.81m, YRoof = - 6.01m from the Footer

3- I calculate the Footer coordinates in Northings/Easthings as

   XFooter = 47170.48 - (6.72/0.3048) = 47148.43 ft

   YFooter = 51431.13 + (6.04/0.3048) = 51450.95 ft

4- I find that these coordinates for the Footer agrees with the original Footer within 5 to 10 cm. Shown below.

5- The mistake was made as

      XFooter = 47170.48 + (6.72/0.3048) = 47192.53 ft

      YFooter = 51431.13  -  (6.04/0.3048) = 51411.31ft

 

 

Here are the NEW numbers

 

The colums are:

Station

Module ID

Standard SPASEII X

Standard SPASEII Y

X wrt Footer in Northings/Eastings

Y wrt Footer in Northings/Eastings

X wrt Roof  in Northings/Eastings

Y wrt Roof  in Northings/Eastings

 
  1  69    -34.85     71.55    -34.79     71.55    -41.51     77.59
  1  66    -35.20     71.98    -35.12     72.01    -41.84     78.05
  1  42    -35.77     71.86    -35.70     71.89    -42.42     77.93
  1   8    -35.39     71.48    -35.34     71.49    -42.06     77.53
  2  20     -5.02     74.91     -4.95     74.81    -11.67     80.85
  2  44     -5.03     75.44     -4.95     75.33    -11.67     81.37
  2  65     -5.50     75.70     -5.43     75.61    -12.16     81.65
  2  51     -5.50     75.14     -5.43     75.06    -12.16     81.10
  3  25     24.09     79.84     24.16     79.63     17.44     85.67
  3  36     24.31     80.38     24.37     80.18     17.65     86.22
  3  48     23.97     80.84     24.04     80.64     17.32     86.68
  3  50     23.75     80.30     23.83     80.09     17.11     86.13
  4  16    -48.33     43.12    -48.29     43.18    -55.01     49.22
  4  46    -48.12     44.07    -48.08     44.12    -54.80     50.16
  4 100    -47.95     43.55    -47.92     43.60    -54.64     49.64
  4  82    -48.51     43.63    -48.47     43.69    -55.19     49.73
  5  52    -16.57     47.97    -16.53     47.93    -23.25     53.97
  5  24    -16.01     48.10    -15.98     48.05    -22.70     54.09
  5  37    -16.77     47.43    -16.74     47.38    -23.46     53.42
  5  32    -16.21     47.49    -16.16     47.44    -22.88     53.48
  6  74     12.94     51.35     12.98     51.19      6.25     57.23
  6  72     12.39     51.47     12.43     51.31      5.71     57.35
  6  19     12.03     51.03     12.06     50.86      5.34     56.90
  6  45     12.57     50.94     12.61     50.76      5.89     56.81
  7  83     42.53     55.63     42.57     55.37     35.85     61.41
  7 116     42.76     56.13     42.82     55.85     36.09     61.90
  7 129     43.20     55.76     43.24     55.49     36.52     61.53
  7  14     42.96     55.26     43.00     54.97     36.28     61.01
  8   4    -59.00     15.19    -58.99     15.29    -65.71     21.33
  8  59    -59.55     15.33    -59.54     15.44    -66.26     21.48
  8  57    -59.94     14.92    -59.93     15.01    -66.65     21.05
  8  41    -59.40     14.80    -59.41     14.89    -66.14     20.93
  9  11    -28.66     19.01    -28.66     19.00    -35.38     25.05
  9  92    -28.16     19.29    -28.14     19.28    -34.86     25.32
  9  67    -28.68     19.57    -28.69     19.55    -35.41     25.59
  9  56    -29.16     19.27    -29.15     19.25    -35.87     25.29
 10  84      0.63     22.17      0.63     22.05     -6.09     28.09
 10  47      0.59     22.75      0.60     22.63     -6.12     28.67
 10  78      1.13     21.88      1.15     21.75     -5.57     27.79
 10  10      1.08     22.46      1.09     22.33     -5.63     28.37
 11 108     30.29     26.66     30.29     26.44     23.57     32.48
 11   2     30.25     27.24     30.26     27.02     23.54     33.06
 11 114     30.80     26.95     30.81     26.72     24.09     32.76
 11 110     30.80     26.44     30.81     26.20     24.09     32.24
 12  86     62.02     29.92     62.05     29.58     55.33     35.62
 12  15     62.59     29.79     62.60     29.43     55.88     35.47
 12 106     62.75     29.24     62.75     28.88     56.03     34.92
 12 113     62.16     29.40     62.17     29.06     55.45     35.10
 13  12    -71.55    -14.10    -71.58    -13.94    -78.30     -7.90
 13  75    -71.01    -13.94    -71.06    -13.79    -77.78     -7.75
 13  64    -71.13    -14.51    -71.18    -14.37    -77.90     -8.33
 13  71    -71.67    -14.67    -71.70    -14.52    -78.42     -8.48
 14  49    -41.63     -9.65    -41.68     -9.62    -48.40     -3.57
 14  33    -41.41     -9.14    -41.43     -9.10    -48.15     -3.06
 14   5    -41.08     -9.59    -41.10     -9.56    -47.82     -3.51
 14  39    -41.31    -10.10    -41.34    -10.07    -48.06     -4.03
 15  62    -11.07     -6.67    -11.10     -6.75    -17.82     -0.71
 15   1    -10.57     -6.85    -10.59     -6.93    -17.31     -0.89
 15 112    -10.46     -7.42    -10.49     -7.48    -17.22     -1.44
 15 103    -10.95     -7.22    -10.98     -7.30    -17.70     -1.26
 16  70     19.33     -2.88     19.32     -3.06     12.59      2.98
 16  97     19.77     -2.53     19.74     -2.73     13.02      3.31
 16 119     19.41     -3.44     19.38     -3.64     12.66      2.40
 16  43     19.84     -3.09     19.80     -3.28     13.08      2.76
 17 121     50.49      1.30     50.47      0.99     43.74      7.03
 17 127     51.03      1.37     51.01      1.05     44.29      7.09
 17  27     50.81      0.85     50.80      0.53     44.08      6.57
 17 126     50.26      0.81     50.25      0.50     43.53      6.54
 18  89     81.09      5.31     81.07      4.89     74.35     10.93
 18 101     81.63      5.40     81.62      4.98     74.90     11.02
 18  26     81.42      4.88     81.22      4.47     74.50     10.51
 18  93     80.87      4.77     80.85      4.34     74.13     10.38
 19   3    -55.14    -39.21    -55.21    -39.12    -61.93    -33.08
 19 118    -55.56    -39.57    -55.64    -39.49    -62.36    -33.45
 19 115    -56.09    -39.32    -56.15    -39.21    -62.87    -33.17
 19  77    -55.67    -39.02    -55.73    -38.94    -62.45    -32.90
 20  99    -24.32    -36.13    -24.39    -36.16    -31.11    -30.12
 20  90    -24.85    -36.00    -24.91    -36.01    -31.63    -29.97
 20  18    -25.03    -35.44    -25.09    -35.46    -31.82    -29.42
 20 117    -24.50    -35.57    -24.58    -35.59    -31.30    -29.54
 21  80      7.51    -32.42      7.46    -32.57      0.74    -26.53
 21  68      7.96    -32.74      7.92    -32.87      1.19    -26.83
 21  35      7.86    -33.30      7.79    -33.45      1.07    -27.41
 21   9      7.43    -32.96      7.37    -33.12      0.65    -27.08
 22  98     38.56    -28.54     38.52    -28.79     31.80    -22.75
 22  95     38.89    -28.98     38.82    -29.25     32.10    -23.20
 22  76     38.39    -29.07     38.33    -29.34     31.61    -23.30
 22 151     38.06    -28.65     38.00    -28.91     31.28    -22.87
 23  17     69.12    -23.21     69.06    -23.58     62.34    -17.53
 23  53     69.57    -22.89     69.52    -23.27     62.79    -17.23
 23  88     69.61    -23.46     69.58    -23.82     62.86    -17.78
 23  40     69.17    -23.79     69.12    -24.16     62.40    -18.11
 24  63    -36.34    -65.02    -36.43    -65.00    -43.15    -58.96
 24 152    -36.37    -65.59    -36.46    -65.58    -43.18    -59.54
 24  79    -36.79    -65.26    -36.89    -65.24    -43.61    -59.20
 24  94    -36.77    -64.68    -36.86    -64.66    -43.58    -58.62
 25  38     -5.22    -61.34     -5.31    -61.43    -12.03    -55.39
 25  91     -5.53    -61.79     -5.62    -61.89    -12.34    -55.85
 25  23     -6.08    -61.75     -6.17    -61.83    -12.89    -55.79
 25  85     -5.78    -61.28     -5.86    -61.37    -12.58    -55.33
 26 104     26.59    -57.19     26.51    -57.41     19.79    -51.37
 26 102     26.94    -57.65     26.84    -57.87     20.12    -51.82
 26 105     26.38    -57.69     26.30    -57.90     19.57    -51.86
 26   6     26.04    -57.25     25.96    -57.47     19.24    -51.43
 27  31     57.14    -53.16     57.05    -53.48     50.33    -47.44
 27  73     57.53    -53.55     57.45    -53.87     50.72    -47.83
 27 107     56.97    -53.75     56.90    -54.09     50.18    -48.05
 27 109     56.56    -53.36     56.47    -53.69     49.75    -47.65
 28  61    -17.58    -89.58    -17.72    -89.63    -24.44    -83.58
 28  34    -17.59    -90.56    -17.72    -90.60    -24.44    -84.56
 28  55    -17.29    -90.09    -17.41    -90.14    -24.13    -84.10
 28  54    -17.88    -90.03    -17.99    -90.08    -24.71    -84.04
 29  96     13.52    -85.86     13.40    -86.03      6.68    -79.99
 29 128     13.15    -86.32     13.04    -86.49      6.32    -80.45
 29  87     12.59    -86.20     12.46    -86.36      5.74    -80.32
 29  13     12.98    -85.74     12.85    -85.91      6.13    -79.87
 30 120     45.69    -81.32     45.59    -81.61     38.87    -75.57
 30 124     45.95    -81.87     45.83    -82.16     39.11    -76.12
 30  58     45.58    -82.32     45.47    -82.62     38.75    -76.57
 30 122     45.35    -81.80     45.22    -82.10     38.50    -76.06