United States Geological Survey
20160701
REGIONAL_AREA_CTX_BlockAdj_dd.tif
1
raster digital data
http://planetarymaps.usgs.gov/mosaic/Mars/CTX_EZs
United Stated Geological Survey
20160701
Context Camera (CTX) Image Mosaic for Mars Human Exploration Zones
1
raster digital data
Flagstaff, AZ
United States Geological Survey (USGS)
http://www.hou.usra.edu/meetings/explorationzone2015/
http://astrogeology.usgs.gov/facilities/mrctr-gis-lab
This is a semi-controlled mosaic of the Mars
Reconnaissance Orbiter (MRO) Context Camera (CTX) images.
Resolution of the original CTX images images is ~5
meters/pixel. Mosaics were created for each site proposed
during the Mars Human Exploration Zone meeting in October
2015. http://www.hou.usra.edu/meetings/explorationzone2015/.
The Context Camera (CTX) on the Mars Reconnaissance Orbiter
(MRO) is a Facility Instrument (i.e., government-furnished
equipment operated by a science team not responsible for
design and fabrication) designed, built, and operated by
Malin Space Science Systems and the MRO Mars Color Imager
team (MARCI). CTX will (1) provide context images for data
acquired by other MRO instruments, (2) observe features of
interest to NASA�s Mars Exploration Program (e.g., candidate
landing sites), and (3) conduct a scientific investigation,
led by the MARCI team, of geologic, geomorphic, and
meteorological processes on Mars Reference: Malin, M. C., et
al. (2007), Context Camera Investigation on board the Mars
Reconnaissance Orbiter, J. Geophys. Res., 112, E05S04,
doi:10.1029/2006JE002808.
CTX image mosaics were created to better
characterize Mars sites for potential human
exploration.
20160701
ground condition
As needed
-180
180
60
-60
http://www.hou.usra.edu/meetings/explorationzone2015/
Mars
CTX
Mars Reconnaissance Orbiter (MRO)
mosaic
NASA
MSSS
http://www.hou.usra.edu/meetings/explorationzone2015/
Mars
none
none
United States Geologic Survey
mailing address
2255 North Gemini Drive
Flagstaff
AZ
86001
USA
928-556-7100
NASA, MSSS, Arizona State University, U.S. Geological Survey (USGS)
None
Unclassified
None
ISIS 3.4.0, GDAL 1.10.2, ArcMap 10.3.1
CTX provides the wider context for the data
collected by the other two instruments. Scientists examine
details of rocks and mineral fields with the other
instruments, while CTX provides a bigger-picture view of the
terrain.
10
http://dx.doi.org/10.1002/ima.1850030205
An accessment of the horizontal and vertical errors have
not been yet determined.
This is a preliminary product.
These CTX mosaics were not controlled to MOLA or the
controlled THEMIS IR mosaics. They were only tied to each
other in an attempt to align features across edges.
100
An assssment of the horizontal errors have not
been yet determined but should be with in
the absolute error of 100m.
n/a
-1
http://dx.doi.org/10.1002/ima.1850030205
1
http://dx.doi.org/10.1002/ima.1850030205
Malin, M.C., et. al.
J. Geophys. Res., 112, E05S04, doi:10.1029/2006JE002808.
2007
Context Camera Investigation on board the Mars Reconnaissance Orbiter
document
http://onlinelibrary.wiley.com/doi/10.1029/2006JE002808/abstract
PDS EDR
2005
2016
ground condition
URL
Context Camera Investigation on board the Mars
Reconnaissance Orbiter
The processing approach to generate the mosaics
used the USGS digital cartographic system ISIS,
Arizona State University's Davinci software, and Esri's
ArcMap. Integrated Software for Imagers and Spectrometers
(ISIS) to ingest images in an archival format and perform
instrument-specific radiometric calibration and map project
the images. Davinci was used to stretch the images using a
running standrd devation to try to remove a ramped (smile)
lightening effect in many of the CTX images. This was not
always successful and thus mosaics will have hard edges.
ArcMap was then used to create a virtual
mosaic and then control the images (block adjustment) to each other in an
attempt to align features across edges. These images were
not controlled to a basemap (e.g. MOLA topographic data or THEMIS controlled mosaic).
20160701
United States Geological Survey
Trent Hare
mailing address
2255 North Gemini Drive
Flagstaff
AZ
86001
USA
928-556-7100
thare@usgs,gov
Raster
Pixel
50000
40000
1
0.000084353
0.000084353
Decimal degrees
Mars 2000 Sphere
3369190.0
0.000000001
Mars 2000 Sphere
1
Meters
Explicit elevation coordinate included with horizontal coordinates
Mosaic built from map projected CTX images. Any orignal I/F values have been lost during the costmetic stretch.
http://www.esri.com
20160701
United States Geological Survey
Trent Hare
Cartographer
mailing and physical address
2255 North Gemini Drive
Flagstaff
AZ
86001
USA
928-556-7100
thare@usgs.gov
FGDC Content Standards for Digital Geospatial
Metadata
FGDC-STD-001-1998