Sometime in the last year or so, the NGA updated their website and deleted a number of documents that we depend on as references. This project hosts those files, mostly rescued from wayback machine, on gitlab and the web.
We are not affiliated with the National Geospatial-Intelligence Agency. These files were originally published with unlimited distribution in the public domain. This page and its source code are made available © 2021 IS4S, Inc under the Creative Commons Attribution license.
Please let us know if any of these files are still available from official sources and we’ll replace our copy with a web redirect to the official version.
| File | Description | Dead Link | Rescued From |
|---|---|---|---|
wgs84fin.pdf |
DoD World Geodetic System ‘84 definition | wgs-old | wgs-src |
NGA.STND.0036_1.0.0_WGS84.pdf |
NGA STANDARDIZATION DOCUMENT | stnd-old | stnd-src |
Sections 1-5.pdf |
DMA TECHNICAL REPORT TR8350.2-b - Supplement to DoD WGS 84 Technical Report Part 2 | s15-old | s15-src |
README_FIRST_new.pdf |
Description of EGM2008 gravity files | egm-old | egm-src |
| multiple (see below) | Gold Data v6.3 Testing for Datum Transformations and Coordinate Conversion Software | gld-old | gld-src |
These files were rescued from a wayback machine page. That page includes javascript which will attempt to redirect you to NGA’s new homepage (which is apparently missing these files), and is only viewable if you turn your browser’s Javascript feature off.