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 10:58:12 EST
 HX1885 ********************************************************************
 HX1885  ACCURACIES  -  Complete network and local accuracy information.
 HX1885  SACS        -  This is a Secondary Airport Control Station.
 HX1885  DESIGNATION -  K 203
 HX1885  PID         -  HX1885
 HX1885
 HX1885  Horiz and Ellip are the horizontal and ellipsoid height accuracies
 HX1885  at the 95% confidence level per Federal Geographic Data Committee
 HX1885  Geospatial Positioning Accuracy Standards.  SD_N, SD_E and SD_h are
 HX1885  the standard deviations (one sigma) of the coordinates (NETWORK) or
 HX1885  of the difference in the coordinates (LOCAL) in latitude, longitude
 HX1885  and ellipsoid height.  CorrNE is the (unitless) correlation
 HX1885  coefficient between the latitude and longitude components of either
 HX1885  the coordinate (NETWORK) or coordinate difference (LOCAL).  Dist is
 HX1885  the three-dimensional straight-line slope distance, in km, between
 HX1885  station HX1885 and the corresponding local station.  Local stations
 HX1885  are stations processed simultaneously in a session regardless of
 HX1885  distance.
 HX1885
 HX1885  Accuracy and standard deviation values are given in cm.
 HX1885
 HX1885  Type/PID  Horiz  Ellip  Dist(km)  SD_N   SD_E   SD_h         CorrNE
 HX1885  -------------------------------------------------------------------
 HX1885  NETWORK   1.61   2.23             0.71   0.60   1.14    +0.02853762
 HX1885  -------------------------------------------------------------------
 HX1885  LOCAL (002 points):
 HX1885  AA9349    1.60   2.16    37.13    0.70   0.60   1.10    +0.03234575
 HX1885  AA9350    1.58   2.25    37.72    0.70   0.58   1.15    +0.02722132
 HX1885
 HX1885  MEDIAN    1.59   2.21    37.42
 HX1885  -------------------------------------------------------------------