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OSTN Update tool

OSGB36 derived using OSTN02

Eastings and Northings

*Denotes a required field.

OSGB36 derived using OSTN15

Eastings and Northings

*Denotes a required field.

Batch Transform

*Denotes a required field.

For the result to be valid, the source coordinates must have been derived from OSTN02. If they already contain OSTN15 derived coordinates, this service has no way of knowing and it will produce inaccurate output.

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