Project name      : C:\TSOffice\Projects\HALFF-27
Description       : FEMA FLOOD STUDY BENCHMARK TIES
Coordinate System : US State Plane 1927
Zone              : Texas North Central 4202
Datum             : NADCON (Conus)
Date printed      : 3/13/00 3:54:56 PM

---------- GPS Calibration ----------
           ===============           


Datum transformation parameters
Rotation about x axis       -0°00'03.21047" 
Rotation about y axis        0°00'00.78249" 
Rotation about z axis        0°00'04.31860" 
Translation along x axis       430.456 USft 
Translation along y axis      -419.783 USft 
Translation along z axis      -282.369 USft 
Scale factor (ppm)                   -5.764 

Horizontal adjustment parameters
Northing coordinate of rotation center    708756.370 USft     
Easting coordinate of rotation center     676701.204 USft     
Rotation about the center point           -0°00'00.04900"     
Translation north                              0.013 USft     
Translation east                               0.002 USft     
Scale factor                                   1.00000000     


Vertical adjustment parameters
Northing coordinate of origin point    685418.542 USft     
Easting coordinate of origin point     683698.635 USft     
Vertical separation at origin             -80.098 USft     
Slope north                                -0.00000343     
Slope east                                  0.00000462     

Geoid model GEOID99 (Conus)


Residual differences between GPS and known coordinates
Horizontal                                    
Maximum error           0.098 USft  (Point 4) 
Root mean square error        0.02            
Vertical                                      
Maximum error           0.132 USft  (Point 28)
Root mean square error       0.025            
Three-dimensional                             
Maximum error           0.157 USft  (Point 28)
Root mean square error        0.03            

Starting point             Calculated point           Grid point              

Point 1 : NGS J71                                     Point 
Lat     33°28'29.05197"N   North    683295.643 USft   North    683295.688 USft
Long   101°41'45.68379"W   East     720987.600 USft   East     720987.557 USft
Height     3144.778 USft   Elev       3146.714 USft   Elev       3143.510 USft
                           Horizontal error 0.062 USft   Type          Horizontal
                           Vertical error         ?
                           3D error      0.062 USft

Point 4 : 1/2IRS W/CAP                                Point 
Lat     33°28'35.08789"N   North    685418.542 USft   North    685418.539 USft
Long   101°49'06.59020"W   East     683698.635 USft   East     683698.537 USft
Height     3165.239 USft   Elev       3166.372 USft   Elev       3166.452 USft
                           Horizontal error 0.098 USft   Type       Horz and Vert
                           Vertical error 0.080 USft
                           3D error      0.127 USft

Point 28 : NGS SHEPARD                                Point 
Lat     33°28'33.75590"N   North    686310.086 USft   North    686310.086 USft
Long   101°53'58.55108"W   East     658985.710 USft   East     658985.795 USft
Height     3245.600 USft   Elev       3246.132 USft   Elev       3246.000 USft
                           Horizontal error 0.085 USft   Type       Horz and Vert
                           Vertical error 0.132 USft
                           3D error      0.157 USft

Point 38 : 5/8IRS W/CAP                               Point 
Lat     33°30'19.75219"N   North    696533.991 USft   North    696533.934 USft
Long   101°51'42.68827"W   East     670927.890 USft   East     670927.882 USft
Height     3222.406 USft   Elev       3223.349 USft   Elev       3223.378 USft
                           Horizontal error 0.058 USft   Type       Horz and Vert
                           Vertical error 0.029 USft
                           3D error      0.065 USft

Point 44 : 5/8IRS                                     Point 
Lat     33°32'34.60748"N   North    710984.252 USft   North    710984.215 USft
Long   101°55'37.73780"W   East     651617.960 USft   East     651617.953 USft
Height     3253.400 USft   Elev       3254.056 USft   Elev       3254.154 USft
                           Horizontal error 0.038 USft   Type       Horz and Vert
                           Vertical error 0.098 USft
                           3D error      0.105 USft

Point 89 : NGS McCAULEY                               Point 
Lat     33°38'04.27340"N   North    743655.830 USft   North    743655.817 USft
Long   101°52'43.04384"W   East     667778.805 USft   East     667778.807 USft
Height     3255.674 USft   Elev       3257.213 USft   Elev       3257.200 USft
                           Horizontal error 0.013 USft   Type       Horz and Vert
                           Vertical error 0.013 USft
                           3D error      0.018 USft

Point 58 : 5/8IRS W/CAP                               Point 
Lat     33°37'20.95688"N   North    738836.313 USft   North    738836.321 USft
Long   101°50'36.22257"W   East     678310.805 USft   East     678310.870 USft
Height     3217.368 USft   Elev       3219.076 USft   Elev       3219.114 USft
                           Horizontal error 0.065 USft   Type       Horz and Vert
                           Vertical error 0.038 USft
                           3D error      0.075 USft

Point 77 : NGS LUBBOCK MAG                            Point 
Lat     33°35'05.56355"N   North    725016.408 USft   North    725016.465 USft
Long   101°49'54.13629"W   East     681302.241 USft   East     681302.245 USft
Height     3190.477 USft   Elev       3192.060 USft   Elev       3191.960 USft
                           Horizontal error 0.057 USft   Type       Horz and Vert
                           Vertical error 0.100 USft
                           3D error      0.115 USft

