Brazos County Benchmark System Benchmark = HG1

Location: unknown

BM Owner: USGS

For best results contact U.S. Geological Survey.

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

Latitude Longitude

Position 30 03 50.47402 (N) 95 50 29.55954 (W) Adjusted GPS

Orthometric Height (M) 77.109 unchecked GPS

Ellip_Height (M) 49.89 GPS

PROJECTION COORDINATES

NORTH EAST SCALE CONVERG.

SPC TX C 3,052,793.54 1,133,006.14 1.00001447 + 02 18 48.7

UTM 14 3,330,086.72 804,507.39 1.00074417 + 01 35 0.6

 

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

3330086.68690 N

804507.41999 E

Elevation 77.272

Convergence 01 35 00.61090

Scale Factor 1.000744167

Combined Factor 1.000732032

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

3052793.50303 N

1133006.17383 E

Elevation 77.272

Convergence 02 18 48.72964

Scale Factor 1.000014470

Combined Factor 1.000002343

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 03 50.47292 N

95 50 29.55828 W

Elevation (m) 77.272

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 03 49.68390 N

95 50 28.73415 W

Elevation 253.49

Datum Shift (m) Delta Lat. = 24.296

Delta Lon. = 22.074