• Select the geoid models you want to install from the list below and click Download and install.
Model Reference URL Download Size Download Link
NGA: EGM 84, 96, 2008 http://earth-info.nga.mil/GandG/wgs84/gravitymod/wgs84_180/wgs84_180.html
http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html
http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008
963 MB

for TPC 2019

for TPC 2020

NGS: Geoid12A / Geoid12B https://www.ngs.noaa.gov/GEOID/ 93 MB

for TPC 2020

NGS: Geoid18 https://www.ngs.noaa.gov/GEOID/ 29 MB

for TPC 2020 R1

The NGA geoid model is currently supported in TPC Desktop 2019 R1 and newer.

  • TPC will install the geoid models to C:\ProgramData\Traverse PC\TPC Desktop [version]\Geoids\

The NGS geoid model is currently supported in TPC Desktop 2020 R0 and newer.

  • TPC will install the geoid models to C:\ProgramData\Traverse PC\Geoids\[Model]\