Volume PVO2_0004 Pioneer Venus Orbiter - Venus Orbital Operations CDROM Retarding Potential Analyzer Datasets Orbits 550-599 Planetary Plasma Interactions Node of the Planetary Data System ============================================================================== Introduction ============================================================================== This disk contains Venus Orbital Operations data submitted to the Planetary Data System (PDS) by PVO ORPA project investigators. Every effort has been made to assure that the data are of the best quality available. However, the PDS and the Planetary Plasma Interactions (PPI) Node in particular, assume no liability for this disk or its contents. All users are encouraged to verify the "correctness" of the data prior to submitting any publications or other work based on these data. This CD-ROM contains data for orbits 550-599 covering the time period between 1980-06-07T08:21:45.274Z through 1980-07-27T03:07:36.532Z. ============================================================================== Errata ============================================================================== There is a file name ERRATA.TXT found at the root level of this volume which contains a list of changes and errors. This is a list of cumulative changes made to any ORPA RDR CD-ROM (volume PV02_xxxx) created by this production date. Any changes or errors that were found to any PPI CD after the production of this volume can be found via anonymous-ftp at srvsun.igpp.ucla.edu (ftp 128.97.68.55). The account name is anonymous and the password should be your id (it's nice to leave an audit trail). Change to the PDS errata directory (cd pds/ERRATA/PV02), and transfer the file ERRATA.TXT (get ERRATA.TXT). ============================================================================== Disk Format ============================================================================== The disk is organized into a hierarchical directory structure which the PPI Node hopes will be both intuitive for the user as well as easy to use. The disk is formatted according to both ISO 9660 and POSIX (Unix) standards in order to accommodate users on a wide variety of platforms. All of the label, table, and text files are ascii with CR/LF (VAX / IBM-PC) format. The basic organization of the disk is as follows: CATALOG contains instrument, dataset, and processing templates organized into one file called CATALOG.CAT. This single file can be used as the source of all "metadata" regarding this data archive. THERE IS NO CATALOG INFORMATION ON THIS DISK! The ORPA RDR Catalog templates are contained on disk PV02_0001, the first volume in this series. DATA contains all data and catalog templates in a branching tree structure of sub-directories. Data for orbits 500-599 are located in the ORB0550 subdirectory. Data files are given an orbit filename of the form "ORBXXXX.RDR" where XXXX is the orbit number. INDEX contains a cumulative index table (CUM_INDX.TAB) which describes the location of all files on the PV02 collection (ORPA - RDR). In addition, there is a file (INDEX.TAB) which gives the name and location of all files on this volume. These index files have been provided for users who do not wish to make use of the DITDOS software. MANAGE contains data management information for the DITDOS software. Users do not need to make use of any of these files directly, however, the software which allows DITDOS to extract and reformat data files needs to have this information. SOFTWARE contains data processing software provided by the ORPA Principal Investigator which will read the raw (reformatted) data files and perform a routine data processing (Least Squares Fit). This software may contain platform dependencies. THERE IS NO SOFTWARE ON THIS DISK! The ORPA RDR processing software is contained on disk PV02_0001, the first volume in this series. ============================================================================== File Format ============================================================================== All files on this disk are described by detached version 3.0 PDS labels. Version 3.0 of the PDS label does not support detached TEXT file labels, however, TEXT file labels are detached on this disk. PDS labels are identified by a .LBL file name extension. There is one label file for each text and data file contained on this disk and the file name prefix is the same as the file the label describes. The data on this disk are identified with PDS short labels. If the dataset is is stored as multiple files (as most of them are), there will be a single ASCII text format file which describes the physical structure of the data. This format file is then pointed to by all of the labels. Both the label files and the format file (DATAFMT.TXT) are all grouped in the same directories as the data they describe. ============================================================================== Volume Contents ============================================================================== This section describes the volume structure and naming conventions. This basic disk structure is described in the disk format section. Here we give a little insight in to why some of these choices were made. Catalog Directory: A single file, CATALOG.CAT, contains all the catalog information. THERE IS NO CATALOG INFORMATION ON THIS DISK! The ORPA RDR Catalog templates are contained on disk PV02_0001, the first volume in this series. The names of the templates contained in CATALOG.CAT are as follows: CATALOG.CAT MISSION.CAT Mission template SC.CAT Spacecraft template INST.CAT Instrument catalog template DATASET.CAT Dataset catalog template COORD.CAT Coordinate system catalog template PARM.CAT Dataset/Instrument parameter catalog templates DSPROC.CAT Dataset processing catalog template SOFTWARE.CAT Dataset processing software catalog template Software Directory: THERE IS NO SOFTWARE INFORMATION ON THIS DISK! The ORPA RDR Software is contained on disk PV02_0001, the first volume in this series. All of the software is provider by the PVO-ORPA team and and may not be platform independent. The "INFO.TXT" files will help the user to determine if a desired program or application can be used on their platform. Software is available from the PPI Node via an anonymous ftp account - srvsun.igpp.ucla.edu (128.97.68.55), and VAX users can obtain software from UCLASP::DISK$SCRATCH:[PDSUSER.SOFTWARE]. Installation procedures will be provided for all software on this disk in the INSTALL. file. In general, if the installation location is fully compatible with the development platform, the executable will be moved to the installation area. If there are minor incompatibilities (operating system version or compiler version differences) a new executable will be generated from the object code. If there are major incompatibilities (i.e. unsupported platform) and source code is available, the user will have to port the code to the platform needed. File naming will be freeform, however, the file name extensions will follow the standard naming for Unix platforms (.F - Fortran source code, .C - "C" source code, .O - object code, etc.) Index Directory: The index directory contains a cumulative index (CUM_INDX.TAB) which points to every file in this volume series (Volumes PV02_xxxx - RPA-RDR series) and a local index file (INDEX.TAB) which contains a listing of every file on this disk. The index files are ascii tables which can be easily loaded into a database or spreadsheet program. The index files are described by detached PDS labels. Manage Directory: This directory contains several IGPP flatfiles which are used by some of the software in the software directory. These files are not intended for direct use by a user so there are no PDS labels. Data Directory: The data directory is subdivided into multiple levels by groups of orbits in order to keep the number of files in a single directory to a managable number. For example DATA ORB0550 ! Orbits 550-599 The data files, labels, and dataset catalog templates are contained in the sample rate subdirectory. Any files which apply to all datasets further down the tree, are placed at the level at which this transition occurs. This applies to many catalog templates, as well as, calibration files or ancillary information files. Data files are named using the orbit number of the file. Files whose names are Orbit numbers begin with the letters "ORB" and give the orbit in the format ORBXXXX. If the number of files within a single sample rate directory would exceed the ISO 9660 CDROM standard of 255, an additional directory level is added. This level is given an orbit count name which follows the convention just described. In this case, the directory is given the same name as the first file in that directory. ============================================================================== Driver and Hardware Information ============================================================================== This disk has been formatted according to the ISO standard for CDROM production (9660) with level 1 compliance. Any system which complies with this standard (all of them should) should be able to access this disk. 5. Recommended CD-ROM Drives and Driver Software Please note that the following list is not complete. However, these drives and driver software were tested and approved by the project. VAX/VMS Drive: Digital Equipment Corporation (DEC) RRD40, RRD42, or RRD50. Driver: DEC VFS CD-ROM driver V4.7 or V5.2 and up. Product VMS vn Released Commands VFS010 4.7 4/88 MOUNT/STRUCTURE=ISO_9660 VFS020 5.2 12/89 MOUNT/STRUCTURE=ISO_9660 VFS022 5.4 7/90 CDMOUNT/STRUCTURE=ISO_9660 F11CD055 5.5 6/92 CD_MOUNT, CD_DISMOUNT, CDROM (dump) ISO support will be bundled with VMS in version 6.0. Note: VMS drivers can be obtained at UCLASP::DISK$SCRATCH:[PDSUSER.SOFTWARE.VMS_DRIVERS] VAX/Ultrix Drive: DEC RRD40, RRD42, or RRD50. Driver: Supplied with Ultrix 3.1. Note: Use the "cdio" software package (in "~ftp/src/cdio.shar" from the "space.mit.edu" server). Contact Dr. Peter Ford for details. IBM PC Drive: Toshiba, Hitachi, Sony, or compatible. Driver: Microsoft MSCDEX version 2.2. Note: The newest version of MSCDEX (released in February 1990) is generally available. Apple Macintosh Drive: Apple CD SC (Sony) or Toshiba. Driver: Apple CD-ROM driver. Note: The Toshiba drive requires a separate driver, which may be obtained from Toshiba. Sun Micro Drive: Delta Microsystems SS-660 (Sony). Driver: Delta Microsystems driver or SUN CD-ROM Driver. Note: For questions concerning this driver, contact Denis Down at Delta Microsystems, 415-449-6881. ============================================================================== Point of Contact ============================================================================== If the user has problems reading this disk or can not make use of it on one or more of the platforms which should be supported, please contact the PPI pds_operator. This person can be reached in the following ways: SPAN/DEC-NET uclasp::pds_operator Internet pds_operator@igpp.ucla.edu Telephone (310) 206-6073 U.S. Mail PDS Operator c/o Dr. Raymond Walker 3845 Slichter Hall UCLA - IGPP Los Angeles, CA 90024-1567 ============================================================================== Cognizant Persons ============================================================================== The person most directly responsible for the construction and release of this CDROM is Mr. Steven Joy. He was the PPI Node Data Administrator at the time this disk was created and he understands as much about the disk structure and data organization as anyone. The construction of the PDS labels and templates was done by Ms. Eva Fried of the PPI Node and Ms. Sue Hess and Ms. Ruth Monarrez of the Central Node at JPL. Mike Martin of JPL has helped to insure this disk conforms to PDS standards although this disk structure has not yet been adopted as an accepted standard at the time of its release. PPI Personnel JPL Personnel Ray Walker / Steve Joy Eva Fried / Todd King Sue Hess / Ruth Monarrez / Mike Martin 3845 Slichter Hall 4800 Oak Grove Dr. UCLA - IGPP Mail Stop 525-3610 Los Angeles, CA 90024-1567 Pasadena, CA 91109