Home
Geodetic Database
Browse Database
Map Search
Text Search
WKT Search
Tools
GML Export
PDF Reports
About
Features
Screencasts
Contact
Ellipsoid:
Airy 1830
| Ellipsoid Details | |||||||
|---|---|---|---|---|---|---|---|
| Name: | Airy 1830 | ||||||
| Code: | 7001 | ||||||
| Shape: | Ellipsoid | ||||||
| Semi-Major Axis: |
6377563.396 metre
|
||||||
| Inverse Flattening: | 299.3249646 | ||||||
| Meta Data | |||||||
| Remarks: | Original definition is a=20923713, b=20853810 feet of 1796. 1/f is given to 7 decimal places. For the 1936 retriangulation OSGB defines the relationship of 10 feet of 1796 to the International metre through ([10^0.48401603]/10) exactly = 0.3048007491... | ||||||
| Information Source: | Ordnance Survey of Great Britain. | ||||||
| Data Source: | OGP | ||||||
| Revision Date: | December 18, 2018 | ||||||
| Change Id: | [1998.321] [1998.340] [2006.932] | ||||||
| Alias: |
| ||||||
