Control Points and Coordinate Systems

LivDurica

Hello, I am hoping to get some guidance regarding the general coordinate system setup in Drone2Map. I am setting up a 3D project that includes GCPs collected through our trimble GPS.

For the project coordinate system I am planning to use NAD 1983 State Plane Illinois East (US Feet) (3435) and the vertical NAVD88 height (US Feet) (6360). 

The GPS setup is: GCS NAD 1983 2011 (6318) TMM: NAD83 (2011) (EPOCH:2017.5) 

I am not sure where to go from here. When attempting to import the points, drone2map won't let me press OK. I have been having trouble finding resources on how to resolve this and would like to learn more about best practices. Is there something I am missing or overlooking?

Thank you

Screenshot 2026-08-03 113034.png

Screenshot 2026-08-03 113256.png

JonathanLebowitz

Hi @LivDurica, Are you collecting data in California or in Illinois? NAD83 (2011) (EPOCH:2017.5) in TMM is not the same geographic coordinate system as NAD 1983 2011/WKID 6318 in ArcGIS products; it corresponds to California SRS Epoch 2017.50 (NAD83)/WKID 104024. You would need to change the coordinate system in TMM to NAD83 (2011) (EPOCH:2010). Also, to avoid needing a geographic transformation between NAD 83 and NAD 83 (2011), can you change your project coordinate system in ArcGIS Drone2Map to NAD 1983 (2011) StatePlane Illinois East FIPS 1201 (US Feet)/WKID 6455?