geodesy-wgs84-knowledge-patch
Geodesy & WGS84 Knowledge Patch
Essential reference for WGS84 coordinate systems, conversions, datum transformations, and geodetic computation patterns.
Index
| Topic | Reference | Key features |
|---|---|---|
| Coordinate conversions | references/coordinate-conversions.md | Olson's ECEF→geodetic (~3 nm), ECEF↔ENU/NED rotation |
| pyproj patterns | references/pyproj-patterns.md | UTM lookup, 3D CRS, TransformerGroup, 4D epoch, geodesic |
| PROJ pipelines & Helmert | references/proj-pipelines.md | Pipeline syntax, Helmert conventions, kinematic, topocentric |
Key EPSG Codes
| Code | CRS | Notes |
|---|---|---|
| 4326 | WGS84 2D geographic (lat/lon) | Most common |
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