Details for Benchmark: KV6455
N 40° 20.883 W 074° 39.200 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In MERCER county, NJ View Original Datasheet
- PRINCETON RM 2
- Marker Type:
- reference mark disk
- set into the top of a round concrete monument
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|01/01/1933 by CGS (MONUMENTED)
|05/30/1990 by NJGS (GOOD)
|DESCRIBED BY NEW JERSEY GEODETIC SURVEY 1990
THE STATION IS LOCATED IN THE BOROUGH OF PRINCETON, ON THE CAMPUS OF PRINCETON UNIVERSITY, ON THE SOUTH SIDE OF PROSPECT AVENUE. TO REACH THE STATION FROM THE JUNCTION OF WASHINGTON ROAD AND PROSPECT AVENUE, PROCEED 45.0 M (147.6 FT) NORTHEAST FROM THE EAST CURBLINE OF WASHINGTON ROAD TO THE STATION ON THE RIGHT, 2.21 M (7.25 FT) SOUTH OF THE SOUTH CURB OF PROSPECT AVENUE, 2.25 M (7.38 FT) NORTH OF THE NORTH EDGE OF THE SIDEWALK, 33.33 M (109.35 FT) SOUTH SOUTHWEST AND ACROSS PROSPECT AVENUE FROM TRIANGULATION STATION PRINCETON, 7.9 M (25.9 FT) SOUTH OF THE CENTERLINE OF PROSPECT AVENUE AND 0.02 M (0.07 FT) ABOVE THE GROUND.
|11/14/1991 by NJGS (GOOD)
|RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1991
RECOVERED IN GOOD CONDITION.
|05/23/1995 by NJGS (GOOD)
|RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1995 (ECB)
RECOVERED AS DESCRIBED.
- The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
- The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in April 1995. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
- The geoid height was determined by GEOID99.
- The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
- The modeled gravity was interpolated from observed gravity values.