Coordinate Reference System (CRS)

The foundation for accurate site alignment and data processing.

Written by Intercom Admin
April 1, 2025

Setting up a Coordinate Reference System (CRS) is essential for enabling TraceAir's processing capabilities and ensuring accurate alignment of all project data. Without a CRS, the first flight and data processing cannot be completed. Please fill out the CRS form and upload the control plan along with the control points in PDF and CSV or DWG and CSV formats. The control plan is a requirement for TraceAir to place the Ground Control Points (GCPs). Additionally, details about both the Plane and Vertical CRS must be specified.

If CRS information is unclear or unavailable, we recommend consulting a surveyor or engineer for assistance.

1. Overview

To enable data processing and site alignment, we require a defined Coordinate Reference System (CRS). This setup includes information on both Plane and Vertical CRS, ensuring the accurate integration of all spatial data.

2. Process for Completing the CRS Form

Complete the CRS form by providing project-specific details and control points. We will review the submitted information and may request updates or corrections if needed to ensure data accuracy. Once the CRS form is approved, the setup process is complete.

3. Filling out the CRS Form

• Project and Contact Information: Select a project and provide an email address for TraceAir to contact regarding the CRS setup.

• Control Plan*: Attach a PDF and CSV file or a DWG and CSV file to facilitate precise alignment. The PDF or DWG shows point locations, and the CSV has the exact coordinates.

A control plan is optional for projects where you set the markers yourself and mandatory if TraceAir sets them.

* A control plan is a drawing on which existing control points are marked—points with accurate coordinates (Easting, Northing, Elevation) that can be easily identified on the ground. These points serve as reference markers for field surveys and include a description of their physical appearance, for instance, 'MAG NAIL.'

• Plane Coordinate Reference System

  • Units: Select the units used for your site’s Plane CRS, such as U.S. feet.

  • Published or Assumed: Specify if the Plane CRS is "Published" (standardized and documented) or "Assumed" (unique to this project but not officially published).

• Vertical Coordinate Reference System (if applicable)
  If the site uses a specific vertical CRS, indicate whether it is "Published" or "Assumed." The section cannot remain blank.

Use the comments field for any specific details or clarifications needed by our setup team.