File Information
Least Squares Adjustment Report
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 1
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations filename:
DEMO.LSA_DAT
Fixed stations : 3
Free stations : 1
Observed distances : 3
Observed angles : 3
Observed directions : 0
Observed bearings : 0
Observed height differences : 0
Grid :
Maximum no of iterations : 25
Graphics output : Y
Bearing/distance all lines : Y
Calculate error ellipses : Y
Ellipse display multiplier : 1000
C-O check : distance (m) : 10
C-O check : angle (min) : 10
Observation input complete.
Observation validation complete.
Beginning least-squares adjustment
Iteration number 1
Iteration number 2
Iteration number 3
Horizontal adjustment complete.
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 2
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
FIXED STATIONS
STATION EASTING NORTHING R.L.
G100 14446.919 10373.700 0.000
291 14781.942 10469.725 0.000
NONAME4 15072.153 10217.925 0.000
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 3
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations filename
: DEMO.LSA_DAT
OBSERVED DISTANCES
FROM TO DISTANCE S.D.
G100 44 526.000 0.050
291 44 183.300 0.050
NONAME4 44 267.600 0.050
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 4
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid: Observations filename
: DEMO.LSA_DAT
OBSERVED ANGLES
AT FROM TO ANGLE S.D.
G100 291 44 006 09 30.0 5.0
291 G100 44 197 57 00.0 5.0
NONAME4 G100 44 052 28 50.0 5.0
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 5
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
ADJUSTED DISTANCES
FROM TO ADJ DIST RESIDUAL
G100 44 526.029 0.029
291 44 183.396 0.096
NONAME4 44 267.817 0.217
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 6
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
ADJUSTED ANGLES
AT FROM TO ADJ ANGLE RESIDUAL
G100 291 44 006 10 01.9 31.9
291 G100 44 197 56 49.7 -10.3
NONAME4 G100 44 052 28 45.9 -4.1
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 7
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
FINAL STATION COORDINATES - HORIZONTAL
STATION EASTING NORTHING S.D. (E) S.D. (N) COVARIANCE
G100 446.919 10373.700
291 781.942 10469.725
NONAME4 072.153 10217.925
44 14965.231 10463.473 0.007 0.004 -0.000008
Degrees of freedom : 4
Reference Variance used (a priori): 0.25000E-02
Estimated Reference Variance (a posteriori) : 0.42837E-01
Ratio of Estimated/Actual Variance : 17.135
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 8
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
95% CONFIDENCE ELLIPSE DETAILS FOR FREE HORIZONTAL STATIONS
STATION SEMI-MAJOR AXIS SEMI-MINOR AXIS ORIENTATION
44 0.018 0.010 103
LEAST-SQUARES ADJUSTMENT FOR SURVEY NETWORKS 2-Jun-1998 14:28:11 Page 9
Survey name : DEMO Survey date : 2-Jun-1998 Map Grid : Observations
filename : DEMO.LSA_DAT
SPHEROIDAL DISTANCES AND GRID BEARINGS OF OBSERVED LINES
AT TO SPH. DIST FWD BEARING BACK BEARING
G100 291 348.513 074 00 23.5 254 00 23.5
G100 NONAME4 644.347 103 59 24.8 283 59 24.8
G100 44 526.029 080 10 25.4 260 10 25.4
291 44 183.396 091 57 13.2 271 57 13.2
NONAME4 44 267.817 336 28 10.7 156 28 10.7
**End of report**
