CARPENTER — NGS JU4499 — Philadelphia, US

USNGStrigunknown#218503
Latitude
39.934449°
Longitude
-75.145396°
Ellipsoidal h
-26.64 m
Ortho h
6.30 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network of control points that establish the geometric and gravitational framework for surveying and mapping across the United States. Located near Philadelphia, Pennsylvania, at coordinates 39.93445° N, 75.14540° W, this trig point serves as a reference station for horizontal and vertical control in regional surveying operations. The negative ellipsoidal elevation of -26.6 meters reflects its position relative to the WGS84 reference ellipsoid. Trig stations of this type historically supported precise surveying work through direct observation and triangulation methods. Modern surveyors and engineers rely on documented benchmark networks to establish local control, verify GPS observations, and maintain consistency in large-scale projects. Verification and documentation of such control points remains essential for quality assurance in geodetic and surveying work throughout the region.

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CARPENTER — NGS JU4499 — Philadelphia, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #218503 on SurveyingPedia and sits at an approximate elevation of 6.3 metres. Its coordinates in WGS84 are 39.934449°, -75.145396°, corresponding to 39° 56′ 4.01″ N, 75° 8′ 43.43″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like CARPENTER — NGS JU4499 — Philadelphia, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)39.934449, -75.145396
WGS84 (DMS)39° 56′ 4.01″ N, 75° 8′ 43.43″ W
UTM zone (approx.)Zone 18N (approx.)
Elevation6.30 m
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
854 5240 J TIDAL — NGS AJ2129 — Philadelphia, US
0.4 km away · US
US NGS · triangulation station
W 237 — NGS JU0734 — Philadelphia, US
0.4 km away · US
US NGS · triangulation station
PHILADELPHIA GER EVAN LUTH CH — NGS JU3142
0.4 km away · US
US NGS · triangulation station
X 237 — NGS JU0735 — Philadelphia, US
0.5 km away · US
US NGS · triangulation station
PIER 55 S — NGS JU3118 — Philadelphia, US
0.6 km away · US
US NGS · triangulation station
Q 369 — NGS JU2224 — Philadelphia, US
0.9 km away · US

Frequently asked questions

What is CARPENTER — NGS JU4499 — Philadelphia, US?

CARPENTER — NGS JU4499 — Philadelphia, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #218503 and sits at an elevation of 6.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of CARPENTER — NGS JU4499 — Philadelphia, US?

The position of CARPENTER — NGS JU4499 — Philadelphia, US in WGS84 is 39.934449°, -75.145396° (decimal), or 39° 56′ 4.01″ N, 75° 8′ 43.43″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 18N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.