The Local and Network Accuracy Data Sheet

Program lna_ret Version 2.7.24 Date July 3, 2024
National Geodetic Survey, Retrieval Date = FEBRUARY 20, 2025 11:03:59 EST
 BS1745 ********************************************************************
 BS1745  ACCURACIES  -  Complete network and local accuracy information.
 BS1745  DESIGNATION -  G 47 NDS
 BS1745  PID         -  BS1745
 BS1745
 BS1745  Horiz and Ellip are the horizontal and ellipsoid height accuracies
 BS1745  at the 95% confidence level per Federal Geographic Data Committee
 BS1745  Geospatial Positioning Accuracy Standards.  SD_N, SD_E and SD_h are
 BS1745  the standard deviations (one sigma) of the coordinates (NETWORK) or
 BS1745  of the difference in the coordinates (LOCAL) in latitude, longitude
 BS1745  and ellipsoid height.  CorrNE is the (unitless) correlation
 BS1745  coefficient between the latitude and longitude components of either
 BS1745  the coordinate (NETWORK) or coordinate difference (LOCAL).  Dist is
 BS1745  the three-dimensional straight-line slope distance, in km, between
 BS1745  station BS1745 and the corresponding local station.  Local stations
 BS1745  are stations processed simultaneously in a session regardless of
 BS1745  distance.
 BS1745
 BS1745  Accuracy and standard deviation values are given in cm.
 BS1745
 BS1745  Type/PID  Horiz  Ellip  Dist(km)  SD_N   SD_E   SD_h         CorrNE
 BS1745  -------------------------------------------------------------------
 BS1745  NETWORK   3.43   5.37             1.31   1.40   2.74    -0.47525068
 BS1745  -------------------------------------------------------------------
 BS1745  LOCAL (003 points):
 BS1745  BS1744    1.95   2.65     2.62    0.69   0.82   1.35    -0.56620528
 BS1745  BS1746    1.99   2.63     2.69    0.71   0.83   1.34    -0.59393348
 BS1745  BT2337    2.65   3.53     7.47    0.95   1.11   1.80    -0.54378907
 BS1745
 BS1745  MEDIAN    1.99   2.65     2.69
 BS1745  -------------------------------------------------------------------