United States Geological Survey
20110830
LRO LROC Mosaic, Aitken Crater
1
raster digital data
http://www.lmmp.nasa.gov
Lunar Mapping and Modeling Project (LMMP)
20110830
LRO_NAC_Mosaic_17S173E_150cmp.tif
1
raster digital data
Pasadena, CA
Jet Propulsion Laboratory (JPL)
http://www.lmmp.nasa.gov
This is a visible image mosaic generated using Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) images from the Lunar Reconnaissance Orbiter mission. The images were orthorectified using a digital elevation model (DEM) created from LROC NAC stereo images, when available, or LRO's Lunar Orbiter Laser Altimeter (LOLA) global DEM. The mosaic is generated at the same resolution at which the individual LROC NAC images were gathered, which is approximately 0.5 meters/pixel. The mosaic was registered horizontally to the LOLA global DEM.
The NASA Constellation Program (CxP) has identified 50 regions of interest on the Moon that the LROC NAC will image. A mosaic is generated for each of these regions using the acquired LROC NAC images. High resolution mosaics will be essential for identifying potential landing sites, landing site hazards, placement of landed assets on the surface, as well as other surface operations and navigation needs.
The nodata value for the mosaic is 0
2011
Publication date
None planned
172.777
174.157
-16.125
-17.445
http://www.lmmp.nasa.gov/redmine/projects/lmmpwiki/wiki/Glossary
Lunar Mapping and Modeling Project (LMMP)
Lunar Reconnaissance Orbiter (LRO)
Lunar Reconnaissance Orbiter Camera (LROC)
Lunar Orbiter Laser Altimeter (LOLA)
LOLA Gridded Data Record (GDR)
Digital Elevation Model (DEM)
Digital Terrain Model (DTM)
Elevation
Topography
http://www.lmmp.nasa.gov/redmine/projects/lmmpwiki/wiki/Glossary
The Moon
Earth
None
None
United States Geologic Survey
mailing address
2255 North Gemini Drive
Flagstaff
AZ
86001
USA
928-556-7100
The Lunar Mapping and Modeling Project (LMMP) Team
None
Unclassified
None
ISIS 3.2.1, SOCET SET 5.5 ((R) BAE Systems), GDAL 1.8
All primary or nominal mission images are candidates for inclusion in the site mosaics. Only a few commissioning and science phase images will be included, primarily those used to produce the high resolution Digital Elevation Model (DEM) or those that fill gaps not covered by the primary mission data.
All attempts are made to provide complete coverage of the 40 x 40 km Constellation (Cx) region of interest (ROI). If there is redundant coverage, then some filtering is performed to eliminate unusable images such as: incidence angles greater than 90 degrees, summation modes greater than 2 and where Data_Quality_ID=32 as defined in the image labels. Areas in the mosaic that contain gaps had no LROC NAC coverage at the time the mosaic was created.
For the original DEM used to control this mosaic the given horizontal accuracy is the RMS in the X (longitude) and Y (latitude) directions in meters of the final triangulation solution as reported in SOCET SET. The root mean squared (RMS) values are X=7.3m and Y=6.0m. The relative horizontal accuracy (pixel to pixel across the DEM) is the same as the spatial resolution of the DEM, which is equivalent to the post spacing (typically 1.5m). The images used in this project were controlled to LOLA tracks that were determined to be self-consistent, but which may not have been included in a crossover solution. The total absolute error results from the combination of the DEM horizontal error and the LOLA track data horizontal error. The minimum absolute RMS accuracy of the crossover corrected LOLA data is estimated at 20m. Thus the maximum horizontal RMS for this DEM may be up to 21.3m.
21.3
21.3m represents the LOLA 20m absolute RMS accuracy root summed squared (RSS) with the maximum SOCET SET RMS of 7.3m. 1-5m relative accuracy (same as the DEM pixel spacing)
The vertical accuracy measured in SOCET SET is the RMS Z=2.9m. Since the DEM is tied to LOLA, the vertical accuracy is limited by both the absolute vertical RMS accuracy of the LOLA data and the expected vertical precision (the relative precision) of the DEM. The absolute RMS vertical accuracy of the LOLA data is expected to approach 1 meter, but at the time this DEM was created, the vertical RMS accuracy of the LOLA data is estimated at 10m. The relative precision of this DEM is expected to be 1 meter, but can be as large as 2 meters. Thus the maximum vertical RMS for this DEM may be up to 10.4m.
10.4
10.4m represents the LOLA 10m absolute RMS vertical accuracy root summed squared with the maximum SOCET SET RMS of 2.9m, 1-5m precision. Absolute accuracy is based on LOLA error estimates. Precision is based on SOCET SET precision and RMS error between LOLA profiles and the DEM.
Robinson, Mark S. et. al.
Springer Netherlands, Space Science Reviews Volume 150, Numbers 1-4, 81-124, DOI: 10.1007/s11214-010-9634-2
20100101
Lunar Reconnaissance Orbiter Camera (LROC) Instrument Overview
document
http://dx.doi.org/10.1007/s11214-010-9634-2
PDS EDR
2009
2011
ground condition
LROC NAC
http://lroc.sese.asu.edu/data/LRO-L-LROC-2-EDR-V1.0/LROLRC_0001/DOCUMENT/LROCSIS.PDF
Smith, David E. et. al.
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt
20080108
The Lunar Orbiter Laser Altimeter Investigation on the Lunar Reconnaissance Orbiter Mission
document
http://lunar.gsfc.nasa.gov/lola/images/smith_lola_ssr09.pdf
PDS EDR
2009
2011
ground condition
LOLA
http://pds-geosciences.wustl.edu/lro/lro-l-lola-3-rdr-v1/lrolol_1xxx/document/rdrsis.pdf
This image mosaic merges multiple visible LROC NAC images into one larger image using Integrated Software for Imagers and Spectrometers (ISIS 3.2.1). The individual images are calibrated to reflectance (I/F), horizontally controlled to each other, orthorectified, and then balanced and stretched from 32 bit to 8bit for the final output image.
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For orthorectification, a high resolution DEM (1.5 to 5 meters/pixel) for each sites was first produced by the Geomatics team at the United States Geological Survey (USGS). The global LOLA DEM at 128 pixels/degree (237 meters/pixel) resolution is used to fill in the area around the high resolution DEM where there is no stereo coverage. Blending and feathering techniques were used to blend the two DEMs together. Next, the images are calibrated so the density values represent reflectance (I/F).
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Once the image is loaded into ISIS, the spacecraft pointing (SPICE) information is updated and the shape model is defined for the image. To better automatically control the images to one another, a Sobel gradient filter is applied to each image to enhance the crater rims. A network of tie points is then created along the overlap of the left/right image pairs and around the outer edges of the pair. Occasionally, tie points are added manually if the automatic registration fails. Using this control the entire set of images is run through a bundle adjustment. The images are then map projected and orthorectified using the merged DEM to the standard projection, center latitude, center longitude, and resolution selected for each site mosaic. The last steps include merging the map projected images into the final mosaic and then linearly stretch the 32bit ISIS mosaic to an 8bit GeoTiff format.
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LROC images used: M149384426LE.IMG, M149384426LE.IMG, M156455060RE.IMG, M145841560RE.IMG, M121077222RE.IMG, M151738841RE.IMG, M154100130LE.IMG, M154100130RE.IMG, M123438768LE.IMG, M138771635LE.IMG, M138771635RE.IMG, M108095094LE.IMG, M108095094RE.IMG, M123438768RE.IMG, M141126177LE.IMG, M141126177RE.IMG, M110459130LE.IMG, M110459130RE.IMG, M112815322LE.IMG, M112815322RE.IMG, M112822108LE.IMG, M112822108RE.IMG, M115170547LE.IMG, M115170547RE.IMG, M115177299LE.IMG, M115177299RE.IMG, M121070418LE.IMG, M121070418RE.IMG, M121077222LE.IMG, M128155714LE.IMG, M123431984LE.IMG, M123431984RE.IMG, M125794242LE.IMG, M125794242RE.IMG, M125801026LE.IMG, M125801026RE.IMG, M128148929LE.IMG, M128148929RE.IMG, M156461862LE.IMG, M156461862RE.IMG, M128155714RE.IMG, M130510363LE.IMG, M130510363RE.IMG, M134049236LE.IMG, M134049236RE.IMG, M138764852LE.IMG, M138764852RE.IMG, M141132981LE.IMG, M141132981RE.IMG, M134056021LE.IMG, M134056021RE.IMG, M143487037LE.IMG, M143487037RE.IMG, M145841560LE.IMG, M158815583LE.IMG, M158815583RE.IMG, M145848346LE.IMG, M145848346RE.IMG, M151738841LE.IMG, M154093347LE.IMG, M154093347RE.IMG, M156455060LE.IMG, M118715678LE.IMG, M118715678RE.IMG, M161170544LE.IMG, M161170544RE.IMG, M161177329LE.IMG, M161177329RE.IMG, M164709790LE.IMG, M164709790RE.IMG, M149377661LE.IMG, M149377661RE.IMG, M167064651LE.IMG, M167064651RE.IMG, M169432838LE.IMG, M169432838RE.IMG, M164716629LE.IMG, M164716629RE.IMG, M130517148LE.IMG, M130517148RE.IMG, M134049236LE.IMG, M134049236RE.IMG, M134049236RE.IMG, M134049236LE.IMG.
20110919
United States Geological Survey
Ella Lee
mailing address
2255 North Gemini Drive
Flagstaff
AZ
86001
USA
928-556-7100
elee@usgs.gov
Raster
Pixel
80035
80035
1
Equirectangular
-17.0
0
0
0
row and column
0.5
0.5
meters
Moon 2000
1737400.0
1.0e+10
Moon 2000
1
Meters
Explicit elevation coordinate included with horizontal coordinates
An image mosaic is a merge of multiple LROC NAC images which are spatially and radiometrically controlled to each other and the digital elevation model.
http://isis.astrogeology.usgs.gov/
20110901
United States Geological Survey
Trent Hare
mailing 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