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Galileo NIMS PDS4 Archive - Data Collection
The original Galileo NIMS archived data were originally publicly available but not in a format that was readily accessible by the planetary community. This situation precludes the spectral investigation of surface and atmospheric chemistry and mineralogy for these objects. Several aspects of the NIMS data archive contribute to this circumstance, including VAX formatted data files (a platform and format abandoned by the PDS), a challenging radiometric calibration, and the absence of a rigorous camera/sensor model, and/or data products that have been orthorectified or spatially controlled relative to SSI observations or more recent Cassini data products (e.g., VIMS). NIMS data are also not easily accessible by the planetary community. Before this work, NIMS data were only compatible with ISIS2, a program no longer supported by the USGS and no longer functions on some modern computer operating systems (e.g., Apple OS X). Galileo NIMS data were also not compatible with mainstream planetary software, including ENVI/IDL or ISIS3. This effort transitioned the data set to ISIS3 and thereby ISIS3 support interfaces. The NIMS PDS archive contains tube and g-cube data derived from the EDRs. Considering the relatively small scope of this effort only the NIMS tube and g-cube product data are the focus of this work. The objective of this work is to reformat and re-archive the Galileo NIMS data set into a more easily accessible data format. In order to do this we outlined three basic objectives: Objective 1: Create an ISIS3 application that reads and converts the NIMS data cubes into native ISIS3 cubes. NIMS data in the PDS is stored in VAX FLOAT format which is mostly obsolete and not widely used in the community any longer. This objective would ential adding support for conversion of VAX FLOAT to IEEE FLOAT in ISIS; advantageous to the pursuit is existing code in ISIS2 that provided a basis for this work. Here we also sought to seek out problems with the NIMS labels in PDS archive that are not compliant with PDS4 standards. These labels errors are to then be corrected and exported with properly formed labels to the PDS archive. Objective 2: Provide the ability to project NIMS tubes using the existing NIMS latitude, longitude tube backplanes. Objective 3: Derivation of a PDS4 compliant archive of the results of our study and provide it to the PDS for general distribution. These basic initial steps will make NIMS more user friendly and provide active support through ISIS help interfaces. -
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Galileo MAG RDR IDA High Resolution Solar Ecliptic Calibrated Data Collection
This collection contains calibrated high-resolution data from the Gaspra flyby in spacecraft, EME-50, RTN and Gaspra Solar Ecliptic (GaSE) coordinates. -
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Galileo PPR Pre-Jupiter Derived Gaspra Asteroid Encounter Data Collection
This collection contains the RDR data for the Galileo Orbiter PPR instrument for the period corresponding to the Gaspra asteroid encounter observations in October 1991. -
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Galileo MAG Averaged IDA Summary Calibrated Data Collection
This collection contains calibrated averaged data from the Ida flyby in RTN coordinates. These data cover the interval 1993-08-28 00:56 to 1993-08-28 23:59. -
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Galileo Solar System MAG Averaged Cruise Inertial Rotor Coordinates (IRC) Calibrated Data Collection
This collection contains data acquired by the Galileo Magnetometer during the Interplanetary Cruise to Jupiter. The data are at varying resolution depending on the averaging constant applied by the instrument. These data have been fully processed to remove instrument response function characteristics. The data are provided in physical units (nanoTesla) and in 2 coordinate systems. This set of data files contains data in Inertial Rotor Coordinates (IRC= despun spacecraft). -
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Galileo PPR Pre-Jupiter Raw Document Collection
This collection contains the documents associated with the Galileo Orbiter PPR instrument for the period corresponding to the Galileo Pre-Jupiter raw observations. -
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Galileo Trajectory Pre-Jupiter Asteroid Ida Flyby Data Collection
This collection contains Galileo Orbiter 60 second sampled trajectory data from the Ida flyby in Ida-centric Solar Ecliptic (ISE) and RTN coordinates. These data cover the interval 1993-08-28 00:00 to 1993-08-28 23:59 -
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Galileo PPR Pre-Jupiter Derived Ida Asteroid Encounter Data Collection
This collection contains the RDR data for the Galileo Orbiter PPR instrument for the period corresponding to the Ida asteroid encounter observations in August 1993. -
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Galileo NIMS PDS4 Archive Context Collection
The original Galileo NIMS archived data were originally publicly available but not in a format that was readily accessible by the planetary community. This situation precludes the spectral investigation of surface and atmospheric chemistry and mineralogy for these objects. Several aspects of the NIMS data archive contribute to this circumstance, including VAX formatted data files (a platform and format abandoned by the PDS), a challenging radiometric calibration, and the absence of a rigorous camera/sensor model, and/or data products that have been orthorectified or spatially controlled relative to SSI observations or more recent Cassini data products (e.g., VIMS). NIMS data are also not easily accessible by the planetary community. Before this work, NIMS data were only compatible with ISIS2, a program no longer supported by the USGS and no longer functions on some modern computer operating systems (e.g., Apple OS X). Galileo NIMS data were also not compatible with mainstream planetary software, including ENVI/IDL or ISIS3. This effort transitioned the data set to ISIS3 and thereby ISIS3 support interfaces. The NIMS PDS archive contains tube and g-cube data derived from the EDRs. Considering the relatively small scope of this effort only the NIMS tube and g-cube product data are the focus of this work. The objective of this work is to reformat and re-archive the Galileo NIMS data set into a more easily accessible data format. In order to do this we outlined three basic objectives: Objective 1: Create an ISIS3 application that reads and converts the NIMS data cubes into native ISIS3 cubes. NIMS data in the PDS is stored in VAX FLOAT format which is mostly obsolete and not widely used in the community any longer. This objective would ential adding support for conversion of VAX FLOAT to IEEE FLOAT in ISIS; advantageous to the pursuit is existing code in ISIS2 that provided a basis for this work. Here we also sought to seek out problems with the NIMS labels in PDS archive that are not compliant with PDS4 standards. These labels errors are to then be corrected and exported with properly formed labels to the PDS archive. Objective 2: Provide the ability to project NIMS tubes using the existing NIMS latitude, longitude tube backplanes. Objective 3: Derivation of a PDS4 compliant archive of the results of our study and provide it to the PDS for general distribution. These basic initial steps will make NIMS more user friendly and provide active support through ISIS help interfaces. -
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Galileo PPR Pre-Jupiter Raw Asteroid Ida Data Collection
This collection contains the raw data for the Galileo Orbiter PPR instrument for the period corresponding to the Ida asteroid encounter observations in October 1993. -
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Galileo PPR Pre-Jupiter Derived Document Collection
This collection contains the documents associated with the Galileo Orbiter PPR instrument for the period corresponding to the Galileo Pre-Jupiter observations. -
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Galileo Trajectory Pre-Jupiter Cruise RTN Data Collection
This collection contains the Galileo spacecraft trajectory data during the interplanetary cruise. The data have been derived from SPICE kernels at a 1 minute sample rate. The data are provided in RTN coordinates. The SPICE SPK files used to derive these products are: GLL_LONG_2.BSP; GLL910314.BSP; GLL911107.BSP; GLL921228.BSP. -
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Galileo Trajectory Pre-Jupiter Asteroid Gaspra Flyby Data Collection
This collection contains Galileo Orbiter 60 second sampled trajectory data from the Gaspra flyby in Gaspra-centric Solar Ecliptic (GaSE) and RTN coordinates. These data cover the interval 1991-10-29T06:00 to 1991-10-31 00:00.
Data Sets and Information
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