NSSDCA ID: PSPG-00309
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 1994-01-25 to 1994-05-03
This CD-ROM data set contains the Engineering Data Record (EDR) image archive for the Clementine mission acquired by 5 experiments: the Ultraviolet/Visible Camera, the Near-Infrared Camera, the Long Wavelength Infrared Camera, the High Resolution Imaging Camera, and the Star Tracker Cameras. The EDR images are the raw images acquired by these experiments. The only processing performed on these data is to organize and format the data according to Planetary Data System (PDS) standards. The images are in the original compressed format, a Discrete Cosine Transform (DCT) algorithm, in which they were stored on board the Clementine spacecraft. Software for the decompression of these images is available on each disk.
Each disk is formatted according to the ISO 9660 level 1 Interchange Standard. The disks are ordered by orbit number, so that each disk contains images from all 5 experiments for a given set of 3 to 5 orbits. The first volume in the series begins with orbit 32, the start of the lunar mapping phase of the mission. (The low Earth orbit and earth phasing loop image data will be generated on the volumes at the end of the volume series.) Within a top-level directory identified by orbit number are sub-directories identified by experiment, and within each experiment sub-directory are further subdirectories divided into 10 degree latitude bins. Within these sub-directories are the image files. Each image file represents a single Clementine image in four parts: 1) a PDS label describing the image, 2) an image histogram object with statistics about the image, 3) a browse image object containing an uncompressed sub-sampled version of the image, and 4) an image object containing the compressed image.
Lunar images from the Ultraviolet/Visible (UV/VIS) Camera are denoted by LUXXXXXX, where XXXXXX denotes the identification code for the image. These 288 x 384 pixel images were taken in one of 6 filters in the UV and visible wavelengths. Images from the Near-Infrared (NIR) Camera are denoted by LNXXXXXX. These 256 x 256 pixel images were taken in one of 6 filters in the near infrared wavelengths. Images from the Long Wavelength Infrared (LWIR) Camera are denoted by LLXXXXXX. These 128 x 128 pixel images were taken with one broadband filter in the far infrared wavelengths. Images from the High Resolution (HIRES) Camera are denoted by LHXXXXXX. These 384 x 288 pixel images were taken in one of 5 filters in the UV and visible wavelengths. Images from the Star Tracker A Camera are denoted by LAXXXXXX, and from the Star Tracker B Camera by LBXXXXXX. These wide field-of-view, 576 x 384 pixel images were taken in one broadband filter.
In addition, each CD-ROM has a number of other files and directories. The AAREADME.TXT and VOLDESC.CAT files describe the organization and content of the CD. The SOFTWARE directory contains decompression and image software for Mac, DOS, and SUN platforms. A DOCUMENT directory contains files describing the mission and imaging instruments, volume organization, and EDR Software Interface Specifications. The INDEX directory holds files of image indices. The TIMELINE directory contains orbit timeline information (not in PDS format).
These data are available online at: https://pds-imaging.jpl.nasa.gov/volumes/clementine.html#clmEDR
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Mr. Eric Eliason | General Contact | US Geological Survey | eeliason@usgs.gov |