File:PIA17074-MarsOpportunityRover-EsperanceRock-20130223-fig1.jpg

Summary

Description	English: 'Esperance' Target Examined by Opportunity This image from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity shows a pale rock called "Esperence," which was inspected by the rover in May 2013. At the specific target point "Esperance6," Opportunity used its rock abrasion tool (RAT) to remove some surface material and then used its alpha particle X-ray spectrometer (APXS) to identify chemical elements in the rock. The APXS data showed that Esperance's composition is higher in aluminum and silica, and lower in calcium and iron, than other rocks Opportunity has examined in more than nine years on Mars. Preliminary interpretation points to clay mineral content due to intensive alteration by water. This image shows an area about 28 inches (70 centimeters) wide. It is a composite of three exposures taken by Opportunity's panoramic camera (Pancam) through different filters during the 3,230th Martian day, or sol, of the rover's work on Mars (Feb. 23, 2013). The view is presented in false color to make some differences between materials easier to see.
Date	23 February 2013
Source	http://photojournal.jpl.nasa.gov/catalog/PIA17074 (image link)
Author	NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA17074.

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Licensing

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS4 Macintosh
File change date and time	13:38, 1 June 2013
Color space	Uncalibrated

File:PIA17074-MarsOpportunityRover-EsperanceRock-20130223-fig1.jpg

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23 February 2013

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