PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 1999-12-10 NOTE = "Description of PEDR2TAB software provided with the MGS MOLA archive volumes" END_OBJECT = TEXT END FILES IN THIS DIRECTORY ----------------------- P2TINFO.TXT - The file you are reading. PEDR2TAB.F - Fortran source code for Macintosh platforms. Variants for other architectures are available on the MOLA website, http://ltpwww.gsfc.nasa.gov/tharsis/software.html. PEDR2TAB.PRM - Preferences file read by PEDR2TAB, to be edited by user P2TABPPC.HQX - BINHEX file containing executable program compiled for Macintosh PowerPC MOLA.LBL - Example of a PDS label for a file produced by PEDR2TAB EXTRACTING CONTENTS OF BINHEX FILES ----------------------------------- Because of the way this CD-ROM was produced, it was not possible to record this program as a Macintosh executable file. The BINHEX format was used to encode the Macintosh executable so that it could be stored on this CD-ROM. The file needs to be decoded before it can be used on a Macintosh computer. StuffIt Expander is software to decode Macintosh files in BINHEX format. It is available at no charge from: Aladdin Systems, Inc. 165 Westridge Dr. Watsonville, CA 95076 831-761-6200 http://www.aladdinsys.com/ electronic mail: info@aladdinsys.com PEDR2TAB SOFTWARE FOR MGS MOLA ARCHIVE VOLUMES ---------------------------------------------- PEDR2TAB is a program that reads MOLA PEDR files and produces an ASCII table of selected fields, one line for each altimetry shot detected. The user may choose to see all ranges, or only those that are/are not ground hits, in a selected region. The user may output any of eight groups of MOLA instrument values. By default, topography, range, planetary radius, and flags are output. The program is written in Fortran 77 with MIL-STD-1753 and other extensions. The user should modify the preferences file, PEDR2TAB.PRM, to select the groups of values to be written to the output file. A group is selected by placing a T (for True) at the beginning of the line that describes the desired group. Lines that begin with F (False) will not be selected for output. The program writes an ASCII table to a file named MOLA.TAB. The file MOLA.LBL can be used as the basis for a PDS label that describes MOLA.TAB. MOLA.LBL describes all possible fields that can be output. In order for MOLA.LBL to be valid for a particular output file, it must be edited to reflect the user's selections in PEDR2TAB.PRM. The Macintosh version of program uses the Language Systems Fortran FILE=* extension to open files through a Finder dialog window. A single output ASCII table is generated when the program is run. It is very important that the binary files have a filetype of "TEXT" or other non-application type when accessed, as the OPEN routine doesn't see unknown file types. The output file (defaults to MOLA.TAB) is an "MPW document" but can be read by a spreadsheet program or text processor. PEDR2TAB was written by Gregory Neumann, MOLA Science Team, NASA/Goddard Space Flight Center. Although the software contained herein has been tested, no warranty, expressed or implied, is made by NASA, the Jet Propulsion Laboratory (JPL), or the Goddard Space Flight Center (GSFC), as to the accuracy and functioning of the software and related materials, and no responsibility is assumed by NASA, JPL, or GSFC. This software is not supported by the MOLA Instrument and Science Teams. The PEDR Software Interface Specification 2.7 is the authoritative document, and should be consulted if questions arise. If you have any comments, improvements, or bug reports, please send email to Gregory.Neumann@gsfc.nasa.gov.