Features move 3 feet when shared to ArcGIS Online, does not retain original location

AlexanderLynch2

I have a GDB set in local coordinate system on ArcGIS Pro map. I then shared map to ArcGIS online [reprojected to Spherical Mercator] and turn on feature editor tracking and sync. Next, I imported original GDB and ArcGIS Online Services URL to data warehouse [FME]. Manipulated coordinate system to match and compared geometry of same feature. It resulted with NW shift of 3 feet. When surveying centimeter-grade, this shift is unacceptable.

Is there a best practice to retain feature's original geometry when sharing to ArcGIS Online then back to GDB???

 

Image below:
ArcGIS Online Features -- brownish-red line and point
File GDB Features -- green line and point

 

Screenshot 2021-12-08 093807.png

Felipe_Costa_0-1718278836622.png

Anonymous User

Hi @AlexanderLynch2 thanks for this post. If I'm understanding this right, you're comparing the location of points from the following two workflows:

• Published hosted feature layer from ArcGIS Pro
• Original FGDB
  • You're comparing the hosted feature layer published from Pro to the original FGDB and noticing the discrepancy of three feet.  
  • Is this right or am I misinterpreting/missing something here?

We would like to get this to a Support analyst to take a closer look at the data and workflow involved. Let me know and I can get a case going for you. In the meantime, would you be able to attach a zipped file geodatabase with some sample data?

Thanks,

-Peter