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class definition:
catalog
The CATALOG object is used within a VOLUME object to reference completed PDS high level catalog templates. These provide additional information related to the data sets on the volume. -
class definition:
qube
The QUBE object is a multidimensional array (called the core) of sample values in multiple dimensions. QUBEs of one to three dimensions can support optional suffix areas in each axis. A specialization of the QUBE object is the ISIS (Integrated Software for Imaging Spectrometers) Standard Qube, which is a three-dimensional QUBE with two spatial dimensions and one spectral dimension. Its axes have the interpretations 'sample', 'line and 'band'. Three physical storage orders are allowed: band-sequential, line_interleaved (band-interleaved-by-line) and sample_interleaved (band-interleaved-by-pixel). An example of a Standard ISIS Qube is a spectral image qube containing data from an imaging spectrometer. Such a qube is simultaneously a set of images (at different wavelengths) of the same target area, and a set of spectra at each point of the target area. Typically, suffix areas in such a qube are confined to 'backplanes' containing geometric or quality information about individual spectra, i.e. about the set of corresponding values at the same pixel location in each band. NOTE: The following required and optional elements of the Qube object are ISIS-specific. Since the ISIS system was designed before the current version of the PDS Data Dictionary, some of the element names conflict with current PDS nomenclature standards. NOTE: In a Generalized ISIS Qube, the axis names are arbitrary, but in a Standard ISIS Qube, the standard value set applies. -
class definition:
histogram
The histogram object is a sequence of numeric values that provides the number of occurrences of a data value or a range of data values in a data object. The number of items in a histogram will normally be equal to the number of distinct values allowed in a field of the data object. (For example, an 8-bit integer field can have 256 values. This would result in a 256-item histogram.) Histograms may be used to bin data, in which case an offset and scaling factor indicate the dynamic range of the data represented. The following equation allows the calculation of the range of each 'bin' in the histogram. 'bin lower boundary' = ('bin element' * scaling_factor) + offset. -
class definition:
mission_target
The MISSION_TARGET catalog object contains the name of each target associated with a mission. -
class definition:
document
The DOCUMENT object is used to identify a particular document provided on a volume to support a data set or data set collection. A document can be made up of one or many files in a single format. Multiple versions of a document can be supplied on a volume with separate formats, requiring a DOCUMENT object for each document version, i.e., OBJECT = TEX_DOCUMENT and OBJECT = PS_DOCUMENT when including both the TEX and Postscript versions of the same document. If the document's INTERCHANGE_FORMAT is BINARY, it is recommended that the ABSTRACT_TEXT keyword be used for ASCII browsing and text searches. -
class definition:
band_suffix
The BAND_SUFFIX group provides a mechanism for grouping keywords that describe the properties of each BAND suffix plane, or BACKPLANE, of a SPECTRAL_QUBE. -
class definition:
file
The file object is used to define the format of a file, to reference external files, and to indicate boundaries between label records and data records in data files with attached labels. In the PDS, the file object may be used in two ways: 1) As a container, or envelope, for label files. All label files contain an implicit file object that starts at the top of the label and ends where the label ends. In these cases, the PDS recommends against using the NAME keyword to reference the file name. 2) As an explicit object, used when a file reference is needed in a label, in which case the optional file_name data element is used to identify the file being referenced. The keywords in the file object always describe the file being referenced, not the file in which they are contained, i.e., if used in a detached label file, they describe the detached data file, not the label file itself. -
class definition:
table
The TABLE object is a uniform collection of rows containing ASCII and/or binary values stored in columns. Note: In the PDS, if any of the columns in a table are in binary format, the value of the keyword interchange_format is BINARY and the value of record_type is FIXED_LENGTH. On the other hand, if the columns contain only ASCII data, interchange_format = ASCII and record_type can equal STREAM, VARIABLE_LENGTH, or FIXED_LENGTH. -
class definition:
target
The TARGET catalog object forms part of a standard set for the submission of a target to the PDS. The TARGET object contains the following subobject: TARGETINFO. -
class definition:
node_information
The NODEINFO (Node Information) catalog object is completed for the Node specified the NODE catalog object. -
class definition:
personnel
The PERSON (Personnel) catalog object forms part of a standard set for the submission of a PDS user to the PDS. The PERSON object contains the following subobjects: PERSINFO, PERSORDER, PERSELECMAIL, PERSINSTN, PERSNODE, PERSMSN, and PERSTASK. -
class definition:
data_set_map_projection_info
The DATA_SET_MAP_PROJECTION_INFO object provides descriptions of the map projection and the rotational element. -
class definition:
instrument_host_reference_info
The INSTRUMENT_HOST_REFERENCE_INFO catalog object is completed for each reference associated with the instrument host. -
class definition:
instrument_host
The INSTRUMENT_HOST catalog object is used to describe the spacecraft or earth-based observatory from which instrument measurements were taken. -
class definition:
header
The HEADER object is used to identify and define the attributes of commonly used header data structures for non-PDS formats such as VICAR or FITS. These structures are usually system or software specific and are described in detail in a referenced description text file. The use of bytes within the header object refers to the number of bytes for the entire header, not a single record. -
class definition:
target_information
The TARGETINFO (Target Information) catalog object is completed if the target moves in an orbit, in order to provide target physical and dynamic parameters. The TARGETINFO object contains the following subobject: TARGPARMINFO. -
class definition:
mission
The MISSION catalog object forms part of a standard set for the submission of a mission to the PDS. The MISSION object contains the following subobjects: MSNINFO and MSNREFINFO. -
class definition:
personnel_electronic_mail
The PERSELECMAIL (Personnel Electronic Mail) catalog object is repeated for each electronic mail address of a PDS user. -
class definition:
data_set_reference_information
The DSREFINFO (Data Set Reference Information) catalog object forms part of a standard set for the submission of a publication reference to the PDS and also may be used to reference an existing publication reference. The DSREFINFO object contains the following subobjects: REFERENCE. -
class definition:
inventory_node_media_info
The INVNODEMEDIA (Inventory Node Media Information) catalog object provides information about data set distribution medium, data set size, data set cost, and a maximum number of copies a Node is willing to distribute per medium for a PDS cataloged data set This catalog object is repeated for each type of distribution medium. -
class definition:
data_set_target
The DATASETTARG (Data Set Target) catalog object is repeated for each target associated with the data set specified in the DATASET catalog object, in order to specify all targets associated with the data set. -
class definition:
window
The WINDOW object is used to identify an area of interest within an IMAGE object. For example: - In sparse images, a sub-image would indicate where the valid data are located. - In mosaicked images, sub-images could indicate the borders of the constituent images. - In approach images, a sub-image could indicate the area where the target is expected to be found. The WINDOW object identifies a rectangular area of interest within an IMAGE object. WINDOW objects may not serve as the primary object in a data product, nor may they appear outside the context of an IMAGE object. The areas described by separate WINDOW objects may overlap in whole or in part, but WINDOW object definitions may not be nested. The boundaries and physical attributes of the WINDOW object are always determined with reference to the enclosing (parent) IMAGE object. That is, 'first' is defined with respect to the LINE_DISPLAY_DIRECTION and SAMPLE_DISPLAY_DIRECTION of the IMAGE and the WINDOW must have the same SAMPLE_TYPE and SAMPLE_BITS as the IMAGE. WINDOW objects may not have prefix or suffix bytes. As a rule, PDS structures are one-based rather than zero-based. Thus, references to the parent object using FIRST_LINE and FIRST_LINE_SAMPLE should be counted starting at (1,1) rather than (0,0). -
class definition:
instrument_reference_info
The INSTREFINFO (Instrument Reference Information) catalog object forms part of a standard set for the submission of a publication reference to the PDS. The INSTREFINFO object contains the following subobject: REFERENCE. -
class definition:
data_set_map_projection
The DATA_SET_MAP_PROJECTION object is one of two distinct objects that define the map projection used in creating the digital images in a PDS data set. The name the of other associated object that completes the definition is called IMAGE_MAP_PROJECTION. The map projection information resides in these two objects, essentially to reduce data redundancy and at the same time allow the inclusion of elements needed to process the data at the image level. Basically, static information that is applicable to the complete data set reside in the DATA_SET_MAP_PROJECTION object, while dynamic information that is applicable to the individual images reside in the IMAGE_MAP_PROJECTION object. The DATA_SET_MAP_PROJECTION object is to be included in a Archive Quality Data Product Label, and used to load the map projection catalog data into a PDS Catalog. -
class definition:
inventory
The INVENTORY (PDS Data Set Inventory) catalog object is completed once for each Node that is responsible for orderable data sets from the PDS catalog. Its subobjects provide the necessary inventory information which will facilitate the ordering of these data sets. The INVENTORY object contains the following subobjects: INVNETTHRSHLD. -
class definition:
data_set
The DATA_SET catalog object is used to submit the information about a particular data set to the PDS. It contains a detailed description of the data set and associated target, host and reference information. -
class definition:
reference
The REFERENCE catalog object is completed for each reference document. -
class definition:
data_set_release
The DATA_SET_RELEASE object provides information on the release of a data set or portion of a data set being made available for online access. -
class definition:
data_producer
The DATA_PRODUCER object is used within a PDS object, such as VOLUME, to provide information about the producer of a PDS data set. -
class definition:
data_set_collection_ref_info
The following templates form part of a standard set for the submission of a publication reference to the PDS and may also be used to reference an existing publication reference. -
class definition:
ds_map_projection_ref_info
The DS_MAP_PROJECTION_REF_INFO object provides references for the map projection. -
class definition:
data_set_collection_info
This template shall be completed for the data set collection identifier entered in the Data Set Collection template. -
class definition:
instrument_host_information
The INSTRUMENT_HOST_INFORMATION catalog object provides a detailed description of the properties and characteristics of the instrument host. -
class definition:
inventory_data_set_info
The INVDSINFO (Inventory Data Set Information) catalog object provides all the size and threshold information specific to a PDS data set. The INVDSINFO catalog object and its subcatalog objects are to be submitted repetitively for each orderable and cataloged PDS data set. The INVDSINFO object contains the following subobjects: INVSIZE, INVSZTHRSHLD, INVPINSW, and INVNODEMEDIA. -
class definition:
resource_information
The RESOURCE_INFORMATION object is used to submit information about each of the resources (e.g. web pages, ftp sites, data set browsers) that may be used used to select and download data products or other files associated with the data set. The RESOURCE_INFORMATION object is repeated for each resource associated with the data set. -
class definition:
column
The COLUMN object identifies a single column in a data object. Note: In the PDS, columns must not contain embedded COLUMN objects. -
class definition:
data_supplier
The DATA_SUPPLIER object is used within a PDS object, such as VOLUME, to provide information about the supplier of a PDS data set. The supplier is a contact for obtaining data sets and science support information. -
class definition:
bit_element
The bit_element object identifies a bit string embedded in a element. -
class definition:
field
The FIELD object is used inside a SPREADSHEET object to define a single delimited column within the logical table. -
class definition:
text
The TEXT object provides general description of a file of plain text. It is recommended that text objects contain no special formatting characters, with the exception of the carriage return/line feed sequence and the page break. It or Unix line terminators will cause text to be unreadable on other host computers. Tabs are discouraged, since they are interpreted differently by different applications. To ensure ease of display by many text processors, it is recommended that text lines be limited to 70 characters. -
class definition:
parameters
The parameters group provides a mechanism for Grouping multiple sets of related parameters within a data product label. -
class definition:
coordinate_system
The COORDINATE_SYSTEM object provides coordinate system values for spacecraft or rovers. -
class definition:
software_purpose
The SOFTWARE_PURPOSE catalog object contains the identifier for the function that the software performs. -
class definition:
mission_information
The MSNINFO (Mission Information) catalog object is completed for the mission name entered in the MISSION catalog object in order to provide general information regarding the mission. The MSNINFO object contains the following subobjects: MSNPHSINFO. -
class definition:
data_set_mission
The DSMISSION (Data Set Mission) catalog object is repeated for each mission associated with the data set specified in the DATASET catalog object, in order to specify all missions associated with the data set. -
class definition:
discipline_description
The DISCD (Discipline Description) catalog object is completed for the submission of a scientific discipline description to the PDS. -
class definition:
alias
The alias object provides a method of identifying alternate terms or names for approved data elements or objects within a data system. -
class definition:
software_information
The SOFTWARE_INFORMATION catalog object contains the identifier for each piece of software in the PDS. -
class definition:
mission_reference_information
The MSNREFINFO (Mission Reference Information) catalog object forms part of a standard set for the submission of a publication reference to the PDS. The MSNREFINFO object contains the following subobjects: REFERENCE. -
class definition:
target_reference_information
The TARGET_REFERERENCE_INFO catalog object is completed for each reference associated with a particular target.
Data Sets and Information