Volume PV02_0001 Pioneer Venus Orbiter - Venus Orbital Operations CD-ROM Retarding Potential Analyzer Datasets Orbits 1-199 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 Retarding Potential Analyzer 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. Brief Disk Description This CD-ROM contains data for orbits 1-199 covering the time period between 1978-12-05T07:22:17.236Z through 1979-06-22T00:08:34.109Z. All data files are stored in the "DATA" branch of the directory tree. Data are stored in ASCII tables which are described by a detached PDS label (.LBL) and format file (.FMT). Each orbit is stored in a separate file which follow the naming convention ORBxxxx,where xxxx is a four digit orbit number. Data does not exist for every one of the 5055 orbits of the PVO mission, some orbits are missing due to data loss or data processing problems. Users of this disk should read the INFO.TXT files located in each data directory which describe the data in that directory, as well as the other files in that directory. Although the INFO.TXT file is quite large it contains the most relevant information first. It begins by describing the type of data in the directory, the orbits covered, and the names of the most useful user files. Next the file naming conventions are described and the structure of the data files is given. More detailed information about each data file is then given. Novice users can ignore all directories and files except for those mentioned in this brief description. ============================================================================== Documents ============================================================================== This CD-ROM contains documents (consisting of text and, in some cases, images) which have been extracted from the original documentation. All copyright protections associated with these documents are retained by the publishers. All occurrences on this CD-ROM of documents originally published by Kluwer Academic Publishers and by IEEE contain their respective copyright permissions statements in their text in some form: Reprinted with permission of Kluwer Academic Publishers. or Copyright (c) 1980 IEEE. Reprinted, with permission, from IEEE Transactions on Geoscience and Remote Sensing, GE-18, Num. 1, 60-65, Jan. 1980. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of PDS's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new ccollective works for resale or redistribution must be obtained from the IEEE by sending a blank e-mail message to info.pub.permission@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Users of this CD-ROM and/or the Planetary Data System are required to comply with the copyright laws governing the usage of these and any other copyrighted materials on the disk. ============================================================================== Volume Set Information ============================================================================== This CD-ROM is the first disk of the PV02_xxxx series. This volume set contains the sweep data (RDR's) from the Retarding Potential Analyzer team. Every volume will be divided into subdirectories containing 100 orbits each in order to maintain managability. This volume set will contain orbits 1-5055 (1978-12-05 to 1992-10-07.) As the first disk of the series, this CD contains all catalog templates, documentation, and software pertinent to the entire volume series. ============================================================================== Errata ============================================================================== There is a file called ERRATA.TXT found at the root level of this volume which contains a list of changes and errors at the time this CD was published. 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 ftp.igpp.ucla.edu (ftp 128.97.68.41). The account name is anonymous and the password should be your e-mail address (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). Changes can also be found through our web site at http://www.igpp.ucla.edu/ssc/pdsppi/Welcome.html through the data access system. ============================================================================== File Format ============================================================================== All files on this disk are described by detached version 3.0 PDS labels. Data are stored in ASCII tables which are described by a detached PDS label. 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. If the dataset 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. ============================================================================== 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. ============================================================================== Volume Contents and Structure ============================================================================== This section describes the volume structure and naming conventions. Below is a tree diagram of the CD-ROM, followed by a description of the directory function and key files in each directory. CD-ROM | +- CATALOG | +- DOCUMENT | | | +- MISSION | | | +- BRACE | | | +- GREBOWSKY | | | +- MILLER | | | +- INST | +- INDEX | +- MANAGE | +- SOFTWARE | | | + PC | | | + SOLARIS | | | + SOURCE | | | + SUNOS | | | + VMS | +- DATA | +- ORB0001 | +- ORB0100 The basic organization of the disk is as follows: CATALOG Contains mission, spacecraft, software, instrument, dataset, and references templates. key files: CATINFO.TXT - Explains directory contents. MISSION.CAT - Mission template for the Pioneer Venus mission INSTHOST.CAT - Instrument Host (Spacecraft) template for PVO and Probes RDR_DS.CAT - ORPA data set description ORPAINST.CAT - ORPA instrument description PERSON.CAT - ORPA personel REF.CAT - ORPA references DOCUMENT Contains 4 documents which are considered important to the understanding of these and other PVO charged particle experiment datasets. Each document is stored in its own directory. The documents have been scanned electronically and stored as "GIF" files (images of the actual pages) and the document has also been converted to an ASCII text file (with all graphics missing). All documents have also been converted to HTML which preserves the original format of the document as much as possible. key files: DOCINFO.TXT - Describes the contents of the DOCUMENT directory. DOCUMENT/BRACE contains the appendix extracted from Brace, L. H. and A. J. Kliore, "Structure of the Venus Ionosphere", Space Science Reviews, v55, p81-163, 1991. [BRACE&KLIORE1991] which describes some of the problems associated with the inter-calibration of the charged particle detectors aboard PVO. key files: BRACE.ASC - ASCII text version of appendix A from reference above. BRACE.HTM - HTML version of appendix A from reference above. INFO.TXT - Describes the contents of the DOCUMENT/BRACE directory. DOCUMENT/GREBOWSK contains the appendix extracted from Grebowsky, J. M., W. T. Kasprzak, R. E. Hartle, K. K. Mahajan, T. C. G. Wagner, "Superthermal ions detected in the Venus dayside ionosheath, ionopause, and magnetic barrier regions", J. Geophys. Res., vol 98, No. E5, pg 9055-9064, 1993. [GREBOWSKYETAL1993] which discusses the OIMS instrument response to superthermal ions. The text has been included as part of the documentation accompanying the PVO-ORPA data in order to fulfill a requirement imposed during the PDS peer review process. The text is the appendix from the document list above. This appendix is titled "Response of OIMS to Superthermal Ions". key files: GREBOWSK.ASC - ASCII text version of document. GREBOWSK.HTM - HTML version of document. FIGxx.GIF - GIF image file of page xx. INFO.TXT - Describes the contents of the DOCUMENT/GREBOWSK directory DOCUMENT/INST contains the original instrument description and initial results paper Knudsen, W.C., K. Spenner, J. Bakke, V. Novak, "Pioneer Venus Orbiter Planar Retarding Potential Analyzer Plasma Experiment". IEEE Trans. Geoscience and Remote Sensing, vol GE-18, No 1, p54-59, 1980. [KNUDSENETAL1980]. as both an ASCII text file and GIF image files of each page. key files: INFO.TXT - Describes the contents of the DOCUMENT/DATA directory. INST.ASC - ASCII text version of document. INST.HTM - HTML version of document. FIGxx.GIF - GIF image file of page xx. DOCUMENT/MILLER contains both an ASCII and a hypertext version of the selected sections extracted from Miller, K. L., W. C. Knudsen, K. Spenner, "The Dayside Venus Ionosphere", Icarus, 1984. [MILLERETAL1984] which describes some of the problems associated with the inter- calibration of the charged particle detectors aboard PVO. key files: INFO.TXT - Describes the contents of the DOCUMENT/MILLER directory. MILLER.ASC - ASCII text version of appendix A from reference above. MILLER.HTM - HTML version of appendix A from reference above. FIGxx.GIF - GIF image file of page xx. DOCUMENT/MISSION contains both an ASCII and a hypertext version of the mission and instrument host (spacecraft) templates plus numerous scanned images from NASA SP-518 (Fimmel et al., 1995) key files: FIGxxx.GIF - GIF image file of figure XX MISSION.ASC - ASCII text version of the above reference. MISSION.HTM - HTML version of the document (graphics included) INDEX Contains a cumulative index table (CUM_INDX.TAB) which describes the location of all files on the PV02 collection (PVO 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. key files: CUM_INDX.TAB - Contains a cumulative index for the PV02 volume set. CUM_INDX.LBL - Describes the columns and format of CUM_INDX.TAB. INDEX.FMT - Contains column objects describing the format of INDEX.TAB and CUM_INDX.TAB INDEX.TAB - Contains an index of this volume (PV02_0001). INDEX.LBL - Describes the columns and format of INDEX.TAB. INDXINFO.TXT - Describes the contents of this directory. 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. key files: *.* - Various files for internal use. SOFTWARE Contains information about software to extract data from this disk. key files: COPYRIGH.TXT - Describes the legal rights and limitations of liability pertaining to software distributed by the PPI Node of PDS FTP.TXT - Contains instructions on using anonymous to obtain software from the PDS/PPI Node SOFTINFO.TXT - Describes and explains the software available in the directory SOFTWARE/WIN95 A directory containing the executables for the IBM/Windows, and IBM/WindowsNT platforms. keyfiles: INFO.TXT - (this file) describes directory contents LBLTOOL.EXE - a label (.LBL) and catalog (.CAT) file viewer NASAVIEW.EXE - a display tool which may be used with this volume to view PDS labeled tables, or time series as ASCII tables. This software may also be used with PDS qube or image data (neither of which are included on this volume) NASAVIEW.TXT - NASAView AAREADME and licensing information PDSEXP.EXE - used to navigate through this CD-ROM with a point and click interface. This program should run automatically upon inserting the CD-ROM into a Windows95 machine PDSEXP.HLP - PDS Explorer on-line help file SPLASH.EXE - plots PDS Version 3.2 labeled data files SPLASH.HLP - Splash on-line help file SPLASH.TXT - 'Using Splash,' an introduction to Splash TEXTVIEW.EXE - text viewer for use with PDS Explorer *.DLL - dynamically-linked library files required by various of executables DATA Contains all data in a branching tree structure of sub-directories. key files; INFO.TXT - describes the sub-directories in DATA. DATASET.TXT - ASCII text document describing the dataset. INST.TXT - ASCII text document describing the instrument and initial scientific results from the ORPA experiment PARM.TXT - Instrument and dataset parameter description SOFTWARE.TXT - Dataset processing software description DATA/ORBxxxx Contains the ORPA data. Data for orbits 1-99 are located in the ORB0001 sub-directory, the data for orbits 100-199 are in the ORB0100 sub-directory. Data files are given an orbit filename of the form "ORBXXXX.RDR" where XXXX is the orbit number. key files: INFO.TXT - Describes the directory contents. ORPADATA.FMT - Format file describing the ASCII data file. ORBxxxx.RDR - ASCII data file. ORBxxxx.LBL - PDS label for data file. ============================================================================== 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. Mr. Tyler Brown of JPL has helped to insure this disk conforms to accepted PDS standards. PPI Personnel JPL Personnel Ray Walker / Steve Joy Eva Fried / Todd King Tyler Brown 3845 Slichter Hall 4800 Oak Grove Dr. UCLA - IGPP Mail Stop 525-389 Los Angeles, CA 90024-1567 Pasadena, CA 91109