Volume PV03_0001 Pioneer Venus Orbiter - Venus Orbital Operations CD-ROM Neutral Mass Spectrometer Datasets Orbits 1-5055 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 ONMS 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 1-5055 covering the time period between 1978-12-05 through 1992-10-07. All data files are stored in the "DATA" branch of the directory tree. Data are stored in ASCII table format (*.TAB). Each file has a corresponding PDS label file, *.LBL. Users of this disk should read the INFO.TXT file located in the DATA directory which explains where each type of data is located, as well as the INFO.TXT files located in each data directory which describe the data in that directory. Novice users can ignore all directories and files except for those mentioned in this brief description. ============================================================================== Documents ============================================================================== This CD-ROM contains instrument description text which has been extracted from the original instrument paper. All copyright protections associated with this document are retained by the publisher, IEEE. All occurrences of the document on this CD-ROM contain the following copyright permissions statement: Copyright 1980 IEEE, Reprinted, with permission, from IEEE Transactions on Geoscience and Remote Sensing, GE-18, Num 1, 60-65, 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 collective works for resale or resdistribution must be obtained from the IEEE by sending a blank email 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 this material. ============================================================================== Errata ============================================================================== There is a file called ERRATA.TXT found at the root level of this volume which contains a list of changes and errors if there are any at the time this CD was published. This is a list of cumulative changes made to any PVO ONMS CD-ROM (volume set PV03) created by this production date. Any changes or errors that were found to any PV03 CD-ROM after the production of this volume can be found via anonymous-ftp at pdsppi.igpp.ucla.edu (ftp 128.97.68.54). 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 ERRATA/PV03), and transfer the file ERRATA.TXT (get ERRATA.TXT). ============================================================================== Software ============================================================================== The Planetary Plasma Interactions (PPI) Node of NASA's Planetary Data System (PDS) provides software to facilitate the location of the data of interest on CD-ROM data products, as well as software to convert data between architecture specific data formats. In addition, the PPI Node provides software which has been made available by individual projects which may be useful when working with PPI data. Non-PDS software is provided "as is" and is distributed by the PPI Node as a service to the community. To obtain the most recent release of any PPI distributed software use anonymous FTP to connect the PPI FTP server located at "pdsppi.igpp.ucla.edu". (Complete instructions on using FTP can be found in the SOFTWARE directory in the file "FTP.TXT"). ============================================================================== File Formats ============================================================================== 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. This is the only known exception to the PDS version 3.0 standard. 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. There will also be a format file which describes the physical structure of the data. This format file is then pointed to by the label. Both the label file and the format file (*.FMT) are all located in the same directory 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 (VMS / 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. Note: There is a file called YMTRANS.TBL in every directory. This is characteristic of the CD-ROM production software. Also within each of the DATA sub-directories there is a file called ZZINPUT.PDS which is a necessary production file, but not for the user. Excuse any inconvenience that these files may cause. The basic organization of the disk is as follows: CD-ROM | +-CATALOG | +-DOCUMENT | +-INDEX | +-MANAGE | +-SOFTWARE | +-DATA------+ | +-NEUTRAL -+-12S | +-HIRES | | +-ION_LOC +SPRTHRML-+-ION_MAX | +-OXYGEN-+-12S | +-HIRES | +-THRM_ION The following is a brief summary of the contents of each directory: CATALOG Contains mission, spacecraft, dataset, software, parameter and coordinate system templates organized into one file called CATALOG.CAT. key files: CATALOG.CAT - Contains catalog templates. CATINFO.TXT - Describes the directory contents. INDEX Contains a cumulative index table (CUM_INDX.TAB) which describes the location of all files on the PV03 collection (PVO-ONMS). 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 PV03 volume set (a collection of all INDEX.TABs - see below). CUM_INDX.LBL - Describes the columns and format of CUM_INDX.TAB. INDEX.FMT - Describes the structure for both the CUM_INDX.TAB file and the INDEX.TAB file. INDEX.TAB - Contains an index of this volume (PV03_0001) containing name of file, dataset association, and Volume ID. 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: No User Files SOFTWARE Contains information on how to obtain software which will allow users to view, subset, and extract data from the data contained on this disk. Source code is written in C and therefore should compile on various platforms including UNIX (SOLARIS, SUNOS, HP), DOS, WINDOWS, and VAX. key files: SOFTINFO.TXT - Describes the software available and how to acquire software for VMS platforms. FTP.TXT - Describes how to use FTP to transfer file. COPYRIGH.TXT - Explains copyright information. DOCUMENT Contains documentation describing PVO ONMS key files: DOCINFO.TXT - Describes the contents of the DOCUMENT directory. ONMS.ASC - Ascii text of the ONMS documentation. DATA Contains all data in a branching tree structure of sub-directories. The data are the original ASCII version (UADS format) of all 7 datasets as they provided by Dr. Wayne Kasprzak of the PVO ONMS instrument team. key files: COORDS.TXT - Coordinate system descriptions DSPROC.TXT - Specifies which software was used in processing INST.TXT - Instrument descriptions PARM.TXT - Dataset and instrument parameter descriptions SOFTWARE.TXT - Data processing software descriptions DATA/NEUTRAL is divided into 2 subdirectories, 12S and HIGH_RES, which contain the neutral composition datasets DATA/NEUTRAL/12S - contains the 12 second (low) resolution Neutral Composition dataset. key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory LOWNEU.FMT - describes data columns and format LOWNEU.LBL - Neutral composition label file LOWNEU.TAB - Neutral composition data file UADS_HDR.TXT - Header line to the low resolution neutral data DATA/NEUTRAL/HIGH_RES - contains the high resolution Neutral Composition dataset. key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory HIGHNEU.FMT - describes data columns and format HIGHNEU.LBL - Neutral composition label file HIGHNEU.TAB - Neutral composition data file UADS_HDR.TXT - Header line to the high resolution neutral data DATA/SPRTHRML is divided into 3 subdirectories, ION_LOC, ION_MAX, and SPRTHRML DATA/SPRTHRML/ION_LOC - contains the superthermal ion location and duration by species dataset. key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory ION_LOC.FMT - describes data columns and format ION_LOC.LBL - Superthermal ion location label file ION_LOC.TAB - Superthermal ion location data file DATA_HDR.TXT - Header line to the superthermal ion location data DATA/SPRTHRML/ION_MAX - contains the maximum count of superthermal ions by species dataset. key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory ION_MAX.FMT - describes data columns and format ION_MAX.LBL - Superthermal ion maximum label file ION_MAX.TAB - Superthermal ion maximum data file UADS_HDR.TXT - Header line to the superthermal ion maximum data DATA/SPRTHRML/OXYGEN is divided into 2 subdirectories, 12S and HIGH_RES which contain the flux and direction of Superthermal oxygen ions whose energy > 36eV. DATA/SPRTHRML/OXYGEN/12S - contains the 12 second (low) resolution superthermal oxygen dataset key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory UADS_HDR.TXT - Header line to the low resolution superthermal oxygen data UTP.FMT - describes data columns and format UTP.LBL - Superthermal Oxygen label file UTP.TAB - Superthermal Oxygen data file DATA/SPRTHRML/OXYGEN/HIGH_RES - contains the high resolution superthermal oxygen dataset key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory HTP.FMT - describes data columns and format HTP.LBL - Superthermal oxygen label file HTP.TAB - Superthermal oxygen data file UADS_HDR.TXT - Header line to the high resolution superthermal oxygen data DATA/THRM_ION contains the 12 second (low) resolution thermal ion dataset. key files: DATASET.TXT - dataset description INFO.TXT - explains the contents of the directory THRM_ION.FMT - describes data columns and format THRM_ION.LBL - Thermal oxygen label file THRM_ION.TAB - Thermal oxygen data file UADS_HDR.TXT - Header line to the thermal oxygen data ============================================================================== Driver and Hardware Information ============================================================================== This disk has been formatted according to the ISO standard for CD-ROM production (9660) with level 1 compliance. Any system which complies with this standard (all of them should) should be able to access this disk. 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 CD-ROM 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 verified by Ms. Ruth Monarrez of the Central Node at JPL. PPI Personnel JPL Personnel Ray Walker / Todd King Ruth Monarrez Steven Joy / Eva Fried 4800 Oak Grove Dr. 3845 Slichter Hall Mail Stop 525-3610 UCLA - IGPP Pasadena, CA 91109 Los Angeles, CA 90095-1567