PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM SPACECRAFT_NAME = "CLEMENTINE 1" TARGET_NAME = "MOON" OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 1999-03-01 NOTE = "CLEMENTINE UVVIS DIM MOSAIC" END_OBJECT = TEXT END CLEMENTINE UVVIS DIM MOSAIC Table of Contents 1. - INTRODUCTION 2. - DISK FORMAT 3. - FILE FORMATS 4. - CD CONTENTS, DIRECTORY, AND FILENAMING CONVENTIONS 5. - CONTACTS FOR MORE INFORMATION 1. INTRODUCTION This CD is one of 78 CD volumes that contain the full resolution Clementine UVVIS Digital Image Model (DIM) of Earth's Moon. This multi-spectral lunar DIM is a radiometrically and geometrically controlled, photometrically modeled global image mosaic compiled using more than 400,000 images from multiple filter observations of the Ultraviolet/Visible camera onboard the Clementine Spacecraft. The DIM mosaic is mapped in the Sinusoidal Equal-Area projection at a resolution of 100 meters per pixel requiring approximately 66 gigabytes of digital storage (78 CD volumes). This database is partitioned into quads or "tiles" equivalent to the previously released Clementine 750 nanometer Basemap Mosaic (PDS volumes CL_3001 through CL_3015). Tiles are stored as image files of approximately 2100 pixels on a side. Pixels are 16-bit signed integers. A phase angle image database, at equivalent resolution, accompanies the UVVIS DIM. Additional CD volumes will contain supplemental ancillary information and reduced-resolution planetwide coverage at 0.5, 2.5, and 12.5 km/pixels. A final ancillary volume will include additional information in support of the UVVIS DIM. This final volume will include an 'image source' index file and a 'browse' interface for the entire UVVIS DIM CD collection. Although the tiling scheme is equivalent to the original Basemap Mosaic, each 30 degree "zone" of the basemap is now divided into six sets of quadrangles such that each set completes a 650 megabyte CD volume. The full-resolution tiling and CD archive scheme is available in graphic form in the SCHEME.PDF (Adobe Portable Document (PDF) format) file found in the 'document' directory of each CD. A detailed description of the Clementine UVVIS DIM Mosaic with information about the organization and compilation of the database is provided in the VOLINFO files located in the 'document' directory. Using a web browser application, open the 'index.htm' file located in the 'root' directory of each CD. The HTML document will direct you to other informational documents and the image browser for rapidly viewing the image collection. The browse image collection consists of large, medium, and small browse images of enhanced color, color ratio, and b/w (750nm) images for each Clementine UVVIS DIM product. The Clementine UVVIS DIM Mosaic was compiled for the National Aeronautics and Space Administration (NASA) by the United States Geological Survey (USGS) under the direction of Eric M. Eliason, (USGS) and Alfred McEwen (University of Arizona). Mark Robinson (Northwestern University) provided tremendous support and expertise in the compilation of the UVVIS mosaic. Ella Lee and Tammy Becker headed the USGS technical group responsible for its compilation. Cartographic and archive design, data conversion for PDS compliance, and production of CDs was performed by Chris Isbell. The Lunar Geometric Control network was derived by Mert Davies and Tim Colvin (both from the RAND Corporation). Also, an extended number of people have contributed to the production of the UVVIS DIM dataset. See the acknowledgments section of the VOLINFO files ('document' directory) for a complete list of those who contributed. The image files are organized according to NASA's PDS standards. An image file (tile) is organized as a PDS labeled file containing an "image object". Additionally, each image file is associated with an Integrated Software for Imagers and Spectrometers (ISIS) "qube object" detached label. This detached label allows for images to be accessed and processed in the ISIS system (available through the USGS, Flagstaff, AZ). Within ISIS, users should reference the detached label file when accessing image files on this CD set. Other access tools are available that support the Clementine UVVIS DIM. A software tool called "MapMaker" enables users to extract seamless mosaics of images for any latitude-longitude region and at a variety of scales in different map projections. MapMaker, available for distribution through the PDS Imaging Node, can output images in a variety of formats common to the user community (gif, jpeg, tiff, PDS). Additionally, the program "NASAView" provides a simple display capability for images stored in the PDS format. The current version (V2.5.2 as of release date of this CD) of NASAView supports only single band PDS images. The UVVIS DIM products are multi-band image cubes and currently cannot be accessed within NASAView. A new version of NASAView that will support multi-spectral data is planned for release in late summer 1999. This tool is available for distribution by the PDS (Jet Propulsion Laboratory, Pasadena, CA) (http://pds.jpl.nasa.gov). Digital storage requirements for the full resolution image products range from ~35MB to ~55MB. These images have the 'img' filename extension and are found in the 'data' directory. For each UVVIS DIM tile, color ratio, enhanced color, and b/w (750nm) browse images are provided at reduced resolution in JPEG format within the 'browse' directory tree. Detailed information regarding the density stretch parameters used for the generation of these browse products is provided in the BROWINFO.TXT file in the 'browse' directory. 2. DISK FORMAT The disk has been formatted so that a variety of computer systems (e.g. IBM/PC compatible, Macintosh, Sun) may access the data. Specifically, it is formatted according to the ISO 9660 level 1 Interchange Standard. For further information, refer to the ISO 9660 Standard Document: Reference Number ISO 9660-1988, 15 April 1988. The extended attribute records (XAR) supported by the ISO are not used in this volume series. The lack of XARs on a file only affects the VAX/VMS user community. It will be necessary for VAX/VMS users to use the VMS CONVERT utility to convert document and text files before they can be satisfactorily accessed. VAX/VMS users can contact the PDS Imaging Node for support of the Clementine UVVIS DIM Volume set. 3. FILE FORMATS All document files, detached label files, and tables are stored as ASCII stream-record files. In a stream-record file, records (lines of text) are separated by a carriage-return and line-feed character sequence. The / sequence marks the end-of-record and the start of a new record. This organization works well for the Microsoft-DOS systems because the / sequence is identically used on these systems. On Macintosh systems, an end-of-record mark is simply a character. Macintosh text editors can read and access these files, but a special-character indicator (usually a "square box" character) will mark the "extraneous" character at the beginning of each line. On UNIX systems, an end-of-record mark is simply a character. UNIX text editors can read and access these files, but a special-character (usually a ^M sequence) indicator will mark the "extraneous" character at the end of each line. File names with extension "TAB", "LBL", "LAB", "TXT", and "CAT" are formatted as ASCII stream-record files. In addition to the standard ASCII text file format used for documentation files, some documentation files may additionally exist in other forms to facilitate easy access to these files. File names with the extension "HTM" are formatted as HyperText Markup Language (HTML) documents. File names with the extension "PDF" are formatted as Adobe Portable Document Format (PDF) files. Tabular files are formatted so that they may be read directly into many database management systems of various computers. All fields are separated by commas, and character fields are enclosed in double quotation marks ("). Character fields are left justified, and numeric fields are right justified. The "start byte" and "bytes" values listed in the labels that describe the tabular files do not include the commas between fields or the quotation marks surrounding character fields. The records are of fixed length, and the last two bytes of each record contain the ASCII / characters. This scheme allows a table to be treated as a fixed- length record file on computers that support this file type and as a normal text file on other computers. PDS labels are object-oriented. The object to which the label refers (IMAGE, TABLE, etc.) is denoted by a statement of the form: ^object = location in which the carat character (^) indicates that the object starts at the given location. In an embedded label, the Clementine UVVIS DIM image archive uses the form: ^object = n where "n" points to the starting byte location of the object. (The first byte in a file is designated as byte location 1.) For detached labels (labels existing in their own file) the object location is signified as: ^object = "file.nam" In this form, the object of the label description exists in the file named "file.nam". For a description of the PDS object label specifications, consult JPL document D-7669. 4. CD CONTENTS, DIRECTORY, AND FILENAMING CONVENTION The files on this CD are organized starting at the root or 'parent' directory. Below the parent directory is a directory tree containing data, documentation, and index files. In the table below directory names are indicated by brackets (<...>), upper-case letters indicate an actual directory or file name, and lower-case letters indicate the general form of a set of directory or file names. DIRECTORY/FILE CONTENTS ------------------- ------------------------------------------ | |-AAREADME.TXT The file you are reading (ASCII Text). | |-INDEX.HTM Hypertext Markup Language(HTML) file for use | as a user interface to files on this CD. | |-ERRATA.TXT Description of known anomalies and errors | present on the volume set (optional file). | |-VOLDESC.CAT A description of the contents of this | CD volume in a format readable by | both humans and computers. | |- Catalog Directory | | | |-CATINFO.TXT Describes Contents of the Catalog directory | | | |-DATASET.CAT Clementine UVVIS DIM Mosaic description | | | |-DSMAP.CAT Map Projection description | | | |-INSTHOST.CAT Clementine Spacecraft description | | | |-MISSION.CAT Clementine Mission description | | | |-PERSON.CAT Contributors to Clementine UVVIS Mosaic | | | |-REF.CAT References for Clementine UVVIS Mosaic | | | |-UVISINST.CAT UVVIS Camera description | |- Documentation Directory. The files in this | | directory provide detailed information | | regarding the Clementine UVVIS Mosaic. | | | |-DOCINFO.TXT Description of files in the DOCUMENT | | directory. | | | |-VOLINFO.TXT Documentation regarding the | | contents of this CD Volume Set. | | | |-VOLINFO.HTM HTML document for VOLINFO.TXT | | | |-VOLINFO.LBL PDS Label file describing the VOLINFO | | documents. | | | |-SCHEME.PDF Adobe Portable Document Format file showing | UVVIS tiling and CD volume scheme. | |- Directory for the image index files. | | | |-INDXINFO.TXT Description of files in directory. | | | |-INDEX.TAB Image Index table specific to each volume. | | | |-INDEX.LBL PDS label for INDEX.TAB. | | | |-CUMINDEX.TAB Image Index table for entire CD collection. | | | |-CUMINDEX.LBL PDS label for CUMINDEX.TAB. | | |- Data directory containing UVVIS DIM tiles. | | | |- Data filenames where; | (For this UVVIS CD Volume Set) | t = U (Clementine UVVIS Mosaic) | = P (Phase angle image (for dir) | | (For past or future CD Volumes) | = B (Clementine Basemap Mosaic) | = U (UVVIS Cube) | = N (NIR Cube) | = L (LWIR Image Data) | = H (Hi-res Image Data) | | s = (Resolution - km/pixel) | = A (.004 km/pixel - future mapping) | = B-D (For future mapping as needed) | = E (.02 km/pixel - future mapping) | = F-H (For future mapping as needed) | = I (.1 km/pixel) | = J (.15 km/pixel) | = K-L (For future mapping as needed) | = M (.5 km/pixel) | = N-P (For future mapping as needed) | = Q (2.5 km/pixel) | = R-T (For future mapping as needed) | = U (12.5 km/pixel) | = V-Z (For future mapping as needed) | | pp = (00-90) Center latitude of Image File. | (Two digit truncated integer) | | y = N (Positive latitude) | = S (Negative latitude) | = (Not used for full latitude | coverage. i.e. -90 to 90) | | mmm = (000-360) Center longitude of Image. | (Three digit truncated integer) | xxx = IMG (PDS Labeled Image File) | = LAB (ISIS Detached Label File) | = JPG (JPEG "small", "medium", and | "large" Browse Images) | Directory Tree only | = HTM ( Directory Tree only) | |- Directory containing phase angle images. | | | |- Phase angle filenames as defined | in above. | |- Directory tree containing enhanced color, | color ratio, and b/w (750nm) "Browse" (reduced | resolution) JPEG images for each image data | product on the CD. | |-BROWINFO.TXT Description of content. | |-BRCOLOR.HTM Graphics (map)-based HTML interface to | enhanced color browse data | (Accessed by INDEX.HTM file). | |-BRRATIO.HTM Graphics (map)-based HTML interface to | color ratio browse data | (Accessed by INDEX.HTM file). | |-BRBW.HTM Graphics (map)-based HTML interface to | b/w (750nm) browse data | (Accessed by INDEX.HTM file). | |-LOCATOR.HTM CD Volume/Quad Locator Map. | |-CLEMLOGO.GIF Various icons, logos, and images |-USGSLOGO.GIF used by HTML documents on the CD. |-CLEMGRID.GIF |-GR17.GIF |-GR38.GIF | |- | |- | |- Directory tree containing "small","medium", | |- and "large" sized JPEG images (enhanced color, | color ratio, and b/w (750nm)) for each |- DIM product. These JPEG images are primarily | |- used by the HTML documents on the CD. | |- "small" images are ~60x60 pixels | |- "medium" images are ~400x400 pixels | "large" images are ~1000x1000 pixels |-<750nm> |- |- |- 5. CONTACTS FOR MORE INFORMATION For details regarding generation of the Clementine UVVIS Mosaic ------------------------------------------------------------------ Eric M. Eliason, Ella Lee, or Tammy Becker U.S. Geological Survey Astrogeology Team 2255 N. Gemini Dr. Flagstaff, Arizona 86004 eeliason@flagmail.wr.usgs.gov elee@flagmail.wr.usgs.gov tbecker@flagmail.wr.usgs.gov For overall content, design, and archive of the Clementine UVVIS DIM as presented on this CD volume set: ---------------------------------------------------------- Chris Isbell U.S. Geological Survey Astrogeology Team 2255 N. Gemini Dr. Flagstaff, Arizona 86004 cisbell@flagmail.wr.usgs.gov For information on how to obtain a copy of the Clementine UVVIS DIM ------------------------------------------------------------------- Planetary Data System Imaging Node Eric Eliason U.S. Geological Survey Astrogeology Team 2255 N. Gemini Dr. Flagstaff, Arizona 86004 eeliason@flagmail.wr.usgs.gov