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 10:48:45 EST
 EH0970 ********************************************************************
 EH0970  ACCURACIES  -  Complete network and local accuracy information.
 EH0970  HT_MOD      -  This is a Height Modernization Survey Station.
 EH0970  DESIGNATION -  V 219
 EH0970  PID         -  EH0970
 EH0970
 EH0970  Horiz and Ellip are the horizontal and ellipsoid height accuracies
 EH0970  at the 95% confidence level per Federal Geographic Data Committee
 EH0970  Geospatial Positioning Accuracy Standards.  SD_N, SD_E and SD_h are
 EH0970  the standard deviations (one sigma) of the coordinates (NETWORK) or
 EH0970  of the difference in the coordinates (LOCAL) in latitude, longitude
 EH0970  and ellipsoid height.  CorrNE is the (unitless) correlation
 EH0970  coefficient between the latitude and longitude components of either
 EH0970  the coordinate (NETWORK) or coordinate difference (LOCAL).  Dist is
 EH0970  the three-dimensional straight-line slope distance, in km, between
 EH0970  station EH0970 and the corresponding local station.  Local stations
 EH0970  are stations processed simultaneously in a session regardless of
 EH0970  distance.
 EH0970
 EH0970  Accuracy and standard deviation values are given in cm.
 EH0970
 EH0970  Type/PID  Horiz  Ellip  Dist(km)  SD_N   SD_E   SD_h         CorrNE
 EH0970  -------------------------------------------------------------------
 EH0970  NETWORK   0.45   0.73             0.20   0.16   0.37    +0.03173404
 EH0970  -------------------------------------------------------------------
 EH0970  LOCAL (002 points):
 EH0970  EH2504    0.40   0.57     9.50    0.18   0.14   0.29    +0.02884087
 EH0970  EH2499    0.40   0.61     9.66    0.18   0.14   0.31    +0.00511770
 EH0970
 EH0970  MEDIAN    0.40   0.59     9.58
 EH0970  -------------------------------------------------------------------