Brazos County Benchmark System Benchmark = EATON

Location: Robertson County Road 313

BM Owner: National Geodetic Survey

For best results contact NGS.

Horz. Datum NAD 83 (1993) Vert. Datum NAVD 88

Latitude Longitude

Position 30 58 36.28611 (N) 96 19 48.86874 (W) Adjusted GPS

Orthometric Height (M) 146.413 unchecked GPS

Ellip_Height (M) 120.46 GPS

PROJECTION COORDINATES

NORTH EAST SCALE CONVERG.

SPC TX C 3,152,107.76 1,082,277.39 0.99988184 + 02 03 42.6

UTM 14 3,430,083.70 754,976.87 1.00040203 + 01 22 29.4

 

All adjustments hereafter, Original Horizontal Coordinates: NAD 83 Geographic

Universal Transverse Mercator Projection,

NAD 83, NAVD 88, Meters

UTM Zone 14

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD88, Meters

3430083.71309 N

754976.90074 E

Elevation 146.461

Convergence 01 22 29.42741

Scale Factor 1.000402029

Combined Factor 1.000379035

State Plane Coordinates. NAD 83, NAVD 88

Texas Central Zone (4203) Meters

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD 88, Meter

3152107.77009 N

1082277.41159 E

Elevation 146.461

Convergence 02 03 42.58166

Scale Factor 0.999881836

Combined Factor 0.999858854

NAD83 and NAVD88, GEOID96 model, GRS80 ellisoid

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD 88, Meters

NAD83 (1993) NAVD88

30 58 36.28635 N

96 19 48.86776 W

Elevation (m) 146.461

NAD27, NGVD29, Mean Sea Level, Clark 1866 Ellipsoid

Input Vertical Coordinates: Ellipsoid Height GRS 80, Meters

Output Vertical Coordinates: MLS, NGVD 29, U.S. Survey Feet

30 58 35.61118 N

96 19 48.00197 W

Elevation 480.41

Datum Shift (m) Delta Lat. = 20.793

Delta Lon. = 22.974