Appendix

GeoCalc Updates

• Update to NGS Horizontal Time-Dependent Positioning v 3.5.0. - CALC-2357

• Mark the ITRF2020 (EPSG1322) and IGS 2020 (EPSG 1333) datums as suitable for HTDP. - CALC-2367

• Fix issues in the Transformation Preview dialog that were causing failures for Vertical Concatenated Transforms and some Time-Dependent Transforms. - CALC-2355

• Mark the World Geodetic System 1984 (G2139) datum (EPSG 1309) as suitable for HTDP. - CALC-2368

• NTv2 point errors are computed correctly in meters - CALC-2364

• Fixed issue where searching for coordinate systems imported from WKT was causing unexpected errors. - CALC-2344

• Detect when a user has customize the current Geodetic base for a Projected Coordinate Reference System, so that we properly prompt for any required Datum Transformations. - CALC-2351

Datasource Updates

• Add support for Netherlands Geoid Model of 2018 (NLGEO2018). - DATA-230

• Update the geodata.xml datasource to reflect changes by EPSG to use new coord operation types 1134 and 1135 for a number of transforms that were incorrectly labeled as GTX transforms. - DATA-330

• Add coordinate system and coordinate transforms defined for the Yuma Proving Grounds to the base datasource. - DATA-331

• Support for the EPSG v 11.017 Geodetic Parameter Dataset. - DATA-328

• Add a variation of the "PNG94 to PNG08 Height" transformation based on EPSG 7655, but using a BMG-specific grid file PNG08_BMG.DAT - DATA-299