Editing Thermal Emission Imaging System (section)

==Visible camera==
THEMIS  has a visible imaging camera that acquires data in five spectral bands, takes images with a spatial resolution of 18 m (59'), and can resolve objects about the size of a [[semi-trailer]]. This resolution is intermediate between large-scale images from the [[Viking program|Viking Orbiters]] (150 to 300 meters per pixel) and the high-resolution images from the Mars Orbiter Camera (MOC) on board [[Mars Global Surveyor]] (1.5 to 3 meters per pixel).  Visible images from THEMIS are usually close to 20&nbsp;km wide (12 miles).<ref>{{cite web |url=http://mars.jpl.nasa.gov/odyssey/technology/themis.html |title=Mars Odyssey: Technology |access-date=2009-02-21 |url-status=dead |archive-url=https://web.archive.org/web/20090125170606/http://mars.jpl.nasa.gov/odyssey/technology/themis.html |archive-date=2009-01-25 }}</ref>

The THEMIS visible camera's stated purpose is to determine the geological record of past liquid and volcanic environments on Mars. Additionally, this dataset can be used in conjunction with the infrared data to identify potential landing sites for future Mars missions.
[[File:PIA26203-Mars-HorizonViews-OdysseyTHEMIS-20230509.webm|thumb|center|600px|<div align="center">Mars - horizon views (video; 1:24; [[2001 Mars Odyssey|Odyssey orbiter]]; THEMIS camera; 9 May 2023)</div>]]