# What is the Coordinate System for C-LINE Results?

**URL:** <https://forum.cmascenter.org/t/what-is-the-coordinate-system-for-c-line-results/3327>\
**Category:** C-LINE\
**Created:** [June 13, 2022, 4:20pm UTC](https://forum.cmascenter.org/t/what-is-the-coordinate-system-for-c-line-results/3327 "2022-06-13T16:20:07Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![cseppan](https://avatars.discourse-cdn.com/v4/letter/c/6de8d8/32.png) [@cseppan](https://forum.cmascenter.org/u/cseppan)\
**Post date:** [July 5, 2022, 4:39pm UTC](https://forum.cmascenter.org/t/what-is-the-coordinate-system-for-c-line-results/3327/2 "2022-07-05T16:39:59Z")

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For C-LINE, the receptors use a UTM projection whose zone is determined by the center of the modeling domain. The file ctools.prj included in the downloadable results archive provides the specific projection for your modeling scenario.

Regarding the raster output, I replied to your question in this thread: [XORIG, YORIG : cell center or cell edge? - #5 by cseppan](https://forum.cmascenter.org/t/xorig-yorig-cell-center-or-cell-edge/2336/5)

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