PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM SPACECRAFT_NAME = ROSETTA OBJECT = TEXT NOTE = "Overview of the content" PUBLICATION_DATE = 2018-01-01 DESCRIPTION = "AAREADME.TXT File for data set: ROSETTA-ORBITER 67P ROSINA-4 PRL V1.0" END_OBJECT = TEXT END ROSINA ARCHIVE FOR THE EARLY MISSION PHASES 1. Introduction This archive contains calibrated data of the ROSINA instrument on ROSETTA. It also contains documentation which describes the ROSINA mass spectra and the related instruments and detectors. The ROSINA mass spectra archived in this data set are the exact products as described in the ROSINA Experiment to Archive Interface Document(EAICD). Supporting documentation and label files conform to the Planetary Data System (PDS) Standards, Version 3.6, Jet Propulsion Laboratory (JPL) document JPL D-7669, Part 2. Additional information about the ROSINA experiment can be found in documents on ESA's file servers and from the PDS Small bodies Node. 2. Volume format N/A 3. File formats The ROSINA experiment produces two kind of data, mass spectra and pressure records. All data files are in pure ASCII and use up to two TABLE objects with attached labels. The RECORD_TYPE is fixed length with 80 bytes records. Structure pointers, which describe the table COLUMNs, are defined in the labels in order to keep it easy readable. All document files (exept PDF format) contain 80-byte fixed-length records, with a carriage return character (ASCII 13) in the 79th byte and a line feed character (ASCII 10) in the 80th byte. This allows the files to be read by the MacOS, DOS, Unix, and VMS operating systems. All tabular files are described by attached PDS labels. Tabular files are formatted so that they may be read directly into many database management systems on various computers. All fields are separated by commas, and character fields are enclosed in double quotation marks ("). Character fields are left justified, and numeric fields are right justified. The "start byte" and "bytes" values listed in the labels do not include the commas between fields or the quotation marks surrounding character fields. The records are of fixed length, and the last two bytes of each record contain the ASCII carriage return and line feed characters. This allows a table to be treated as a fixed length record file on computers that support this file type and as a normal text file on other computers. PDS labels are object-oriented. The object to which the label refers (e.g., IMAGE, TABLE, etc.) is denoted by a statement of the form: ^object = location in which the carat character (^, also called a pointer in this context) indicates that the object starts at the given location. In an attached label, the location is an integer representing the starting record number of the object (the first record in the file is record 1). In a detached label, the location denotes the name of the file containing the object, along with the starting record or byte number. For example: ^TABLE = "INDEX.TAB" indicates that the TABLE object points to the file INDEX.TAB . Pointers to data objects are always required to be located in the same directory as the label file, so the file INDEX.TAB in this example is located in the same directory as the detached label file. Other types of pointer statements can also be found in this dataset.To resolve the pointer statement, first look in the same directory as the file containing the pointer statement. If the pointer is still unresolved, look in the following top level directory: ^ STRUCTURE - LABEL directory ^ CATALOG - CATALOG directory ^DATA_SET_MAP_PROJECTION - CATALOG directory ^DESCRIPTION - DOCUMENT directory. Below is a list of the possible formats for the ^object keyword. ^object = n ^object = n (used for our TABLES) ^object = "filename.ext" (used for COLUMN definitions) ^object = ("filename.ext",n) ^object = ("filename.ext",n) where n is the starting record or byte number of the object, counting from the beginning of the file (record 1, byte 1) indicates that the number given is in units of bytes filename is the upper-case file name ext is the upper-case file extension 4. Dataset contents The files in this dataset are organized in one top level directory with several subdirectories. The following table shows the structure and content of these directories. In the table, directory names are enclosed in square brackets ([]), upper-case letters indicate an actual directory or file name, and lower-case letters indicate the general form of a set of directory or file names. FILE CONTENTS Top-level directory | |- AAREADME.TXT The file you are reading. | |- ERRATA.TXT Description of known anomalies and errors | present on this dataset. | |- VOLDESC.CAT Dataset volume description | | |- [CATALOG] A directory containing information about the | | ROSINA dataset. | | | |- CATINFO.TXT Description of files in the CATALOG | | directory. | | | |- DATASET.CAT PDS dataset catalog object. A description | | of the dataset, parameters, processing, data | | coverage and quality. | |- PERSONNEL.CAT Personnel involved in the data production. | | | | | |- REFERENCE.CAT Listing of cited references | | | | | |- INSTHOST.CAT Spacecraft overview (inserted by ESA) | | | | | |- MISSION.CAT Mission descriptions (inserted by ESA) | | | | | |- INSTRUMENT.CAT ROSINA instrument description | | | | | |- TARGET.CAT Target information | | | | | |- SOFTWARE.CAT Sofware description | | |- [DATA] A directory containing ROSINA data files. | | | | | [MTP6] MTP6 time period detailed in | | OPERATION_LOGBOOK.PDF document | | | |- [COPS] Directories containing COPS data files | | | [MTP7] MTP7 time period detailed in | | OPERATION_LOGBOOK.PDF document | | | |- [COPS] Directories containing COPS data files | | | [MTP8] MTP8 time period detailed in | | OPERATION_LOGBOOK.PDF document | |- [COPS] Directories containing COPS data files | | | [MTP9] MTP9 time period detailed in | | OPERATION_LOGBOOK.PDF document | | | |- [COPS] Directories containing COPS data files | |- [CALIB] A directory containing ROSINA calibration | | files. | | | |- CALINFO.TXT Description of files in the CALIB directory | | |- [DOCUMENT] A directory containing document files | | relating to this CD-ROM | | | |- DOCINFO.TXT Description of files in the DOCUMENT | directory. | |- [INDEX] A directory containing index files relating | | to this disk. | | | |- INDEX.LBL A PDS detached label describing INDEX.TAB. | | | |- INDEX.TAB Tabular summary of data files. | | | |- INDXINFO.TXT Description of files in the INDEX directory. | |- [LABEL] A directory containing label and include | files from the attached labels | |- LABINFO.TXT Description of files in the LABEL directory | |- COPS_TS_TABLE.FMT COPS Time Series PDS label 6.Errata and Disclaimer A cumulative list of anomalies and errors is maintained in the file ERRATA.TXT at the root directory of this dataset. Although considerable care has gone into making this dataset, errors are both possible and likely. Users of the data are advised to exercise the same caution as they would when dealing with any other unknown data set. Reports of errors or difficulties would be appreciated. Please contact one of the persons listed herein. 7. Whom to Contact for Information For questions concerning this dataset, data products and documentation: University of Bern, Thierry Semon, Physics Institute Division of Space Research and Planetary Sciences Sidlerstrasse 5 CH-3012 Bern Switzerland Phone: (+41 31) 631-4425 Fax: (+41 31) 631-4405 Email: thierry.semon@space.unibe.ch For questions concerning the generation of ROSINA products: University of Bern, Thierry Semon, Physics Institute Division of Space Research and Planetary Sciences Sidlerstrasse 5 CH-3012 Bern Switzerland Phone: (+41 31) 631-4425 Fax: (+41 31) 631-4405 Email: thierry.semon@space.unibe.ch For questions concerning ROSINA data: University of Bern, Kathrin Altwegg, Physics Institute Division of Space Research and Planetary Sciences Sidlerstrasse 5 CH-3012 Bern Switzerland Phone: (+41 31) 631-4420 Fax: (+41 31) 631-4405 Email: kathrin.altwegg@space.unibe.ch