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 10:57:17 EST
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QG1171 ACCURACIES - Complete network and local accuracy information.
QG1171 DESIGNATION - S 184
QG1171 PID - QG1171
QG1171
QG1171 Horiz and Ellip are the horizontal and ellipsoid height accuracies
QG1171 at the 95% confidence level per Federal Geographic Data Committee
QG1171 Geospatial Positioning Accuracy Standards. SD_N, SD_E and SD_h are
QG1171 the standard deviations (one sigma) of the coordinates (NETWORK) or
QG1171 of the difference in the coordinates (LOCAL) in latitude, longitude
QG1171 and ellipsoid height. CorrNE is the (unitless) correlation
QG1171 coefficient between the latitude and longitude components of either
QG1171 the coordinate (NETWORK) or coordinate difference (LOCAL). Dist is
QG1171 the three-dimensional straight-line slope distance, in km, between
QG1171 station QG1171 and the corresponding local station. Local stations
QG1171 are stations processed simultaneously in a session regardless of
QG1171 distance.
QG1171
QG1171 Accuracy and standard deviation values are given in cm.
QG1171
QG1171 Type/PID Horiz Ellip Dist(km) SD_N SD_E SD_h CorrNE
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QG1171 NETWORK 0.99 2.33 0.46 0.33 1.19 +0.04730814
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QG1171 LOCAL (004 points):
QG1171 QG1471 1.09 2.53 24.23 0.50 0.37 1.29 +0.00054577
QG1171 QG1469 0.99 2.33 30.02 0.46 0.32 1.19 +0.03355716
QG1171 RE0749 1.07 2.53 78.66 0.50 0.34 1.29 +0.08640617
QG1171 AA2846 0.99 2.31 88.97 0.46 0.32 1.18 +0.05583669
QG1171
QG1171 MEDIAN 1.03 2.43 54.34
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