NSSDCA ID: PSPG-00631
Availability: Archived at NSSDC, accessible from elsewhere
This data set contains the Clementine Basemap Mosaic of the Earth's Moon on 15 CD-ROM volumes. The basemap mosaic is a radiometrically and geometrically controlled, photometrically modeled global mosaicked Lunar Digital Image Model (LDIM) in sinusoidal equal-area projection. It was compiled using more than 43,000 images from the 750 nanometer filter observations from the Ultraviolet/Visible camera onboard the Clementine Spacecraft. (The 900 nanometer filter was used to fill gaps where there was missing 750 coverage.) The resolution is 100 meters per pixel. The images are stored in PDS format and can be extracted using the NASAview software.
The basemap is partitioned into 14 geographic zones with each zone contained on a single CD volume. Twelve zones, each 30 degrees wide in longitude amd ranging from 70 degrees north to 70 degrees south, make up the mid-latitude regions (CD volumes 2-13). The two polar zones cover 360 degrees of longitude from 70 degrees latitude to the pole (CD volumes 1 and 14). The polar regions additionally contain orthographic projection maps centered at the poles. Volume 15 contains reduced-resolution global coverage at .5, 2.5, and 12.5 km/pixel. The geographic zones are further divided into "tiles". Each tile covers ~7 degrees of latitude and ~6 degrees of longitude at the equatorial regions to larger longitude coverage at higher latitudes. Tiles are stored as image files of approximately 2000 pixels on a side. Pixels are 16-bit signed integers.
The CD volume set also contains ancillary data files that support the basemap mosaic. These files include index files ('imgindx.tab' and 'srcindx.tab') that tabulate the contents of the CD volume set, and documentation files that describe the archive collection. Additionally, volume 15 holds special image arrays containing information about the illumination and viewing geometry, backplane data files for emission, incidence, and phase angle values. A file exists for the solar illumination angle, emission angle, and the phase angle at 2.5 kilometers per pixel.
http://pds-imaging.jpl.nasa.gov/volumes/clementine.html#clmBASE
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Alfred S. McEwen | General Contact | University of Arizona | mcewen@pirl.lpl.arizona.edu |