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attribute definition:
pattern
The pattern attribute provides a symbolic instruction for forming values. -
attribute definition:
update_purpose
The update purpose attribute indicates the intended objective of this update. -
attribute definition:
stop_orbit_number
The stop_orbit_number attribute provides the last in a series of numbers that represent s set of orbital revolutions of one body around another. -
attribute definition:
type
The type attribute classifies the Resource according to its function. -
attribute definition:
maximum_value
The maximum_value attribute provides the upper, inclusive bound on the value. -
attribute definition:
south_bounding_coordinate
The south_bounding_coordinate attribute provides the southern-most coordinate of the limit of coverage expressed in latitude. -
attribute definition:
maximum_value
The maximum_value attribute provides the upper, inclusive bound on the value. -
attribute definition:
name
The name attribute provides a word or combination of words by which the object is known. -
attribute definition:
pixel_resolution_x
The pixel_resolution_x and pixel_resolution_y attributes indicate the image array pixel resolution (distance/pixel or degree/pixel) relative to the Cartesian (x,y) coordinate system as defined by the map projection. Due to varying properties across different map projections, actual surface distances for an individual pixel may be accurate only at specific location(s) within the image array (e.g. reference latitude or longitude, standard parallels, etc). For most PDS products, x and y resolution values are equal ('square' pixels). The inclusion of both x and y attributes allows for anticipated products where resolution may differ for each axis ('rectangular' pixels). NOTE: Definition of this PDS4 attribute differs from how 'resolution' was defined within PDS3. -
attribute definition:
light_source_incidence_angle
light_source_incidence_angle is an angle measured from the local surface normal vector to the direction of a photon arriving from the light source. For rings, the normal vector is that on the same side of the rings as the light source, so values always range between 0 and 90 in units of degrees. The value is always equal to 90 - | observed_ring_elevation | This will enable users to perform database searches based on the effective ring opening angle when they are not concerned about the the distinction between north-side and southside viewpoints. We have included the 'light source' prefix to the term so that this quantity is not confused with 'incidence angle', a term that is generally associated with sunlight rather than stars or radio transmitters. Required in the label if the value is constant for the observation. If the angle varies for the observation, the min and max attributes are required in the label. Optional as a field in the data table. -
attribute definition:
local_identifier
The local_identifier attribute provides a character string which uniquely identifies the containing object within the label. -
attribute definition:
maximum_wavelength
maximum_wavelength is the largest wavelength used in the observation. Optional in labels. Used with minimum_wavelength when the observation is over a wavelength range. -
attribute definition:
ups_zone_identifier
The ups_zone_identifier attribute provides an identifier for the UPS zone. -
attribute definition:
doi
The doi attribute provides the Digital Object Identifier for an object, assigned by the appropriate DOI System Registration Agency. -
attribute definition:
full_name
The full_name attribute provides the complete name for a person and includes titles and suffixes. -
attribute definition:
maximum_wavelength
maximum_wavelength is the largest wavelength used in the observation. Optional in labels. Used with minimum_wavelength when the observation is over a wavelength range. -
attribute definition:
azimuth_measure_point_longitude
The azimuth_measure_point_longitude attribute provides the longitude of the map projection origin. -
attribute definition:
standard_parallel_2
The standard_parallel_2 attribute defines the second standard parallel (applicable only for specific projections, a subset of specific projections where a first standard parallel is applicable), the second line of constant latitude at which the surface of the planet and the plane or developable surface intersect. -
attribute definition:
document_name
The document_title attribute provides the full name of the published document. This optional attribute is used only if the title in the identification area of the document product is not sufficient. -
attribute definition:
character_constraint
The character_constraint attribute limits the characters allowed. -
attribute definition:
checksum_type
The checksum type attribute provides the name of the checksum algorithm used to calculate the checksum value. -
attribute definition:
unit_id
The unit_id attribute provides a character or character string which serves as an abbreviation for, or symbol representing, a unit of measure. -
attribute definition:
map_projection_name
The map_projection_name attribute provides the name of the map projection. -
attribute definition:
unit_id
The unit_id attribute provides a character or character string which serves as an abbreviation for, or symbol representing, a unit of measure. -
attribute definition:
instrument_host_version_id
The instrument_host_version_id attribute provides the version of the instrument host. -
attribute definition:
url
The url attribute provides a Uniform Resource Identifier (URI) that specifies where a resource is available and the mechanism for retrieving it. -
attribute definition:
xml_schema_base_type
The xml schema base type attribute provides the data type needed for the XML schema implementation. -
attribute definition:
creation_date_time
The creation_date_time attribute provides a date and time when the object was created. -
attribute definition:
character_constraint
The character_constraint attribute limits the characters allowed. -
attribute definition:
occultation_type
occultation_type distinguishes between three types of occultation experiments: Stellar, Solar, or Radio. Stellar occultations involve observing a star as a targeted ring or body passes in front, as seen from either a spacecraft or Earth-based observatory. Solar occultations are similar to stellar occultations except that the Sun is used in place of a star. Radio occultations typically involve observing the continuous-wave radio transmissions from a spacecraft as it passes behind the target as seen from a radio telescope on Earth or another spacecraft. Required in labels of occultation observations. Normally not intended as a value for a table field. -
attribute definition:
minimum_value
The minimum_value attribute provides the lower inclusive bound on the value. -
attribute definition:
type
The type attribute classifies the units of amount of substance according to the quantity being measured (amount of substance). -
attribute definition:
volume_de_fullname
The volume_de_fullname attribute provide the full name of the data engineer. -
attribute definition:
primary_body_name
The primary_body_name attribute identifies the primary body with which a given target body is associated as a secondary body. -
attribute definition:
observed_event_start_tdb
observed_event_start_tdb indicates the value for earliest time in the described data, and is given in elapsed seconds since the J2000 epoch. Optional in labels; not intended for use as a table field. -
attribute definition:
character_constraint
The character_constraint attribute limits the characters allowed. -
attribute definition:
definition
The definition attribute provides a statement, picture in words, or account that defines the term. -
attribute definition:
md5_checksum
The md5_checksum attribute is the 32-character hexadecimal number computed using the MD5 algorithm for the contiguous bytes of single digital object (as stored) or for an entire file. -
attribute definition:
last_sampling_parameter_value
The last_sampling_parameter_value element provides the last value in an ascending series and is therefore the maximum value at which a given data item was sampled. -
attribute definition:
upperleft_corner_x
The upperleft_corner_x and upperleft_corner_y attributes provide the projection x and y values, in meters, relative to the map projection origin, at sample 0.5 and line 0.5 (upper left corner of pixel 1,1 within image array). -
attribute definition:
minimum_characters
The minimum_characters attribute provides the lower, inclusive bound on the number of characters. -
attribute definition:
occultation_type
occultation_type distinguishes between three types of occultation experiments: Stellar, Solar, or Radio. Stellar occultations involve observing a star as a targeted ring or body passes in front, as seen from either a spacecraft or Earth-based observatory. Solar occultations are similar to stellar occultations except that the Sun is used in place of a star. Radio occultations typically involve observing the continuous-wave radio transmissions from a spacecraft as it passes behind the target as seen from a radio telescope on Earth or another spacecraft. Required in labels of occultation observations. Normally not intended as a value for a table field. -
attribute definition:
description
The description attribute provides a statement, picture in words, or account that describes or is otherwise relevant to the object. -
attribute definition:
east_bounding_coordinate
The east_bounding_coordinate attribute provides the eastern-most coordinate of the limit of coverage expressed in longitude. -
attribute definition:
minimum_observed_event_time
minimum_observed_event_time gives the smallest value for observed_event_time in the associated data file. It is given in numeric seconds as an offset from the specified UTC reference time. minimum_observed_event_time is optional in labels since the data file time interval end point values are given by the required start_date_time_utc and stop_date_time_utc attributes in the Time_Coordinates class. -
attribute definition:
instrument_type
The instrument_type attribute identifies the type of an instrument. Example values: POLARIMETER SPECTROMETER -
attribute definition:
orbit_direction
The orbit_direction element provides the direction of movement along the orbit about the primary as seen from the north pole of the 'invariable plane of the solar system', which is the plane passing through the center of mass of the solar system and perpendicular to the angular momentum vector of the solar system orbit motion. PROGRADE for positive rotation according to the right-hand rule, RETROGRADE for negative rotation. -
attribute definition:
institution_name
The institution_name attribute provides the name of the associated institution. -
attribute definition:
sub_stellar_clock_angle
sub_stellar_clock_angle is an angle measured at a point in the ring plane, from the direction toward a star to the local radial direction. This angle is projected into the ring plane and measured in the clockwise (retrograde) direction. Equivalently, this is the prograde angle from the local radial direction to the direction toward the star. For stellar occultation data, this angle is equal to (180 - OBSERVED_RING_AZIMUTH) mod 360. It is available only for backward compatibility with previously published Cassini VIMS occultation data analysis; observed_ring_azimuth is the preferred quantity for archiving. sub_stellar_clock_angle is an optional data table field for Cassini VIMS occultation data; not recommended for other occultation data. In a label, the min and max variation attributes are optional for Cassini VIMS occultation data; not recommended for other occultation data. -
attribute definition:
instance_id
The instance_id attribute provides the formal name of a single occurrence of an object.
Data Sets and Information