PHL ARP — NGS JU0905 — Philadelphia, US

USNGStrigunknown#218983
Latitude
39.875458°
Longitude
-75.238542°
Ellipsoidal h
-30.64 m
Ortho h
2.36 m
Verifications
0
Last checked
Never
This trigonometric station is part of the NGS network, which comprises the foundational geodetic infrastructure for surveying and mapping throughout the United States. Trig stations serve as precisely positioned control points that establish horizontal and vertical references for regional surveys and engineering projects. Located near Philadelphia, Pennsylvania, at coordinates 39.87546°N, 75.23854°W, this point carries an ellipsoidal elevation of -30.6 meters. The negative elevation indicates positioning below the ellipsoidal surface, typical for locations in low-lying areas or coastal zones. As a documented reference station within the national geodetic network, this point provides essential positional data for surveyors, engineers, and mapping professionals conducting work in the Philadelphia region. Verification and careful documentation of such control points remain critical to maintaining the integrity and reliability of the geodetic framework upon which modern surveying depends.

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PHL ARP — NGS JU0905 — Philadelphia, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #218983 on SurveyingPedia and sits at an approximate elevation of 2.4 metres. Its coordinates in WGS84 are 39.875458°, -75.238542°, corresponding to 39° 52′ 31.65″ N, 75° 14′ 18.75″ 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 PHL ARP — NGS JU0905 — 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)39.875458, -75.238542
WGS84 (DMS)39° 52′ 31.65″ N, 75° 14′ 18.75″ W
UTM zone (approx.)Zone 18N (approx.)
Elevation2.36 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
Q 7 — NGS JU0906 — Philadelphia, US
0.5 km away · US
US NGS · triangulation station
PHILADELPHIA INTL APT CONT TWR — NGS JU3181
0.5 km away · US
US NGS · triangulation station
U 369 — NGS JU2220 — Philadelphia, US
0.5 km away · US
US NGS · triangulation station
MONUMENT 3 — NGS JU3104 — Tinicum Township, US
0.6 km away · US
US NGS · triangulation station
J 277 — NGS JU0902 — Tinicum Township, US
0.9 km away · US
US NGS · triangulation station
PHILADELPHIA 111TH WING TWR — NGS JU3180
1.0 km away · US

Frequently asked questions

What is PHL ARP — NGS JU0905 — Philadelphia, US?

PHL ARP — NGS JU0905 — Philadelphia, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #218983 and sits at an elevation of 2.4 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of PHL ARP — NGS JU0905 — Philadelphia, US?

The position of PHL ARP — NGS JU0905 — Philadelphia, US in WGS84 is 39.875458°, -75.238542° (decimal), or 39° 52′ 31.65″ N, 75° 14′ 18.75″ 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.