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| 1 | CODE | NAME | ELLIPSOID | DELTAX | SIGMAX | DELTAY | SIGMAY | DELTAZ | SIGMAZ | NORTH | SOUTH | WEST | EAST | ROTX | ROTY | ROTZ | SCALE |
|---|
| 2 | OGB-7 | ORDNANCE GB 1936, Mean (7 Para) | AA | 446 | | -99 | | 544 | | | | | | -0.945 | -0.261 | -0.435 | -0.0000208927 |