Rosetta: Comet 9P/Tempel 1 & Cruise 2 Raw Data from the Microwave Instrument for Rosetta Orbiter (MIRO)

Status: In Lien Resolution

This data set contains raw spectroscopic, continuum, and engineering data taken by MIRO during the second cruise phase of the mission. The data consist primarily of observations of comet 9P/Tempel 1 before, during and after the planned collision of the Deep Impact mission impactor spacecraft with that comet in July 2005. The data are presented as a series of binary table files. These data were collected from 28 June 2005 to 14 July 2005.

The entire data set including catalog, document, index, and supporting files can be downloaded here:

• ro-c-miro-2-cr2-9p-tempel1-v1.0.tgz (271 MB tgz file) [MD5 checksum for the tgz file]

An overview of the volume contents is provided in the aareadme.txt file.

Catalog Files

Catalog files contain the overview information and parameters used in loading the PDS central catalog, specifically, or for developing other interfaces to the data outside of PDS. The information they contain, particularly in their descriptive text fields, should be clear, complete, and understandable to a research user who is not necessarily a mission or instrument specialist.

These files are located in the catalog/ directory. The directory contents are described by the catinfo.txt file.

• Rosetta mission file
• Rosetta Spacecraft instrument host file
• MIRO instrument file
• Data Set description file
• The target catalog file contains very brief definitions of the various TARGET_NAME values found in the PDS labels for the data:
  • Target file
• Software file
• References file
• Personnel file

Documentation Files

In addition to the small text files located throughout the volume to describe directory contents, some specific documents are provided to assist with understanding the data and processing involved. These files are located in the document/ directory. The directory contents are described by the docinfo.txt file.

• 9P/Tempel 1 Observations Report: (ASCII, PDF, PDS label).
• MIRO Archive Interface Control Document: (ASCII, PDF, PDS label).
• MIRO Experiment User Manual: (ASCII, PDF, PDS label).
• A Fortran-77 program that lists selected portions of the MIRO data files: (Program and PDS label).
• A Fortran-77 program that converts between the time system used in the data files and standard UTC notation: (Program and PDS label).

Data Files

The data/ directory contains raw spectroscopic, continuum, and engineering data in the form of binary table files (*.dat). Each data file has a detached PDS label (*.lbl). The data are grouped into these subdirectories:

• continuum
• engineering
• spectroscopic

The label/ directory contains ASCII format files which define the structures of the different types of binary tables in the data/ subdirectories. The directory contents are described by the labinfo.txt file.

• cont_level_2_format.fmt (continuum table format)
• eng_level_2_format.fmt (engineering table format)
• cts_level_2_format.fmt (spectroscopic table format)

Index Files

The index/ directory contains the required PDS index into the files in the data directory, as well as the checksum file.

• indxinfo.txt describes the directory contents.
• index.tab is a comma-separated variable (CSV) table, required by PDS, that identifies the location of each data file on all volumes of this data set (PDS label).
• checksum.tab is flat table of MD5 checksums for each file in the official archive volume except for itself and its PDS label.