File:PIA02993 Mars MOLA N. polar crop.jpg
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Summary
DescriptionPIA02993 Mars MOLA N. polar crop.jpg |
English: This topographic map of the north polar region of Mars was obtained from NASA image PIA02993 by cropping (and conversion from TIFF to JPEG format). NASA's description of PIA02993 is as follows:
The color shaded relief image used as the base for this globe has a resolution of 32 pixels per degree (approximately 1850 m/pixel), and was produced and supplied by the MOLA Science Team (http://ltpwww.gsfc.nasa.gov/tharsis/mola.html). The image is shaded as if illuminated everywhere from the west. The elevations represented in color are with respect to a gravitational equipotential surface whose mean equatorial radius is that of the topography. The Astrogeology Team of the U.S. Geological Survey reprojected the image into the format displayed above. The images are presented in a projection that portrays the entire surface of Mars in a manner suitable for the production of a globe; the number, size, and placement of text annotations were chosen for a 12-inch globe. Prominent features are labeled with names approved by the International Astronomical Union. A specialized program was used to create the "flower petal" appearance of the images; the area of each petal from 0 to 75 degrees latitude is in the Transverse Mercator projection, and the area from 75 to 90 degrees latitude is in the Lambert Azimuthal Equal-Area projection. The northern hemisphere of Mars is shown on the left, and the southern hemisphere on the right. |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/PIA02993 |
Author | NASA / JPL / USGS |
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Licensing
Public domainPublic domainfalsefalse |
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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.) | ![]() |
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21 March 2014
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:53, 19 May 2014 | ![]() | 2,000 × 2,000 (1.45 MB) | WolfmanSF | User created page with UploadWizard |
File usage
Metadata
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If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title |
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Width | 2,000 px |
Height | 2,000 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop Elements 9.0 Windows |
File change date and time | 00:47, 19 May 2014 |
Color space | sRGB |
Image width | 2,000 px |
Image height | 2,000 px |
Date and time of digitizing | 22:57, 21 March 2014 |
Date metadata was last modified | 17:47, 18 May 2014 |
Unique ID of original document | xmp.did:E1ABEFDB4EC1E311B390FB258A0A24E8 |
IIM version | 33,064 |