PDS Imaging Node
Imaging Dictionary

• Hierarchical Listing of Classes
• Alphabetical Listing of Classes
• Alphabetical Listing of Attributes
• Class Definitions
• Attribute Dictionary

This dictionary contains high level classes and attributes used in imaging and spectrometer products. It also contains classes with attributes used during active mission operations. Many of these classes are designed to be extended into local mission dictionaries.

• Command_Parameters

• name
• description
• command_sequence_number

• Imaging_Instrument_Parameters

• crosstrack_summing
• downtrack_summing
• exposure_count
• exposure_duration
• exposure_type
• first_line
• first_line_sample
• gain_mode_id
• light_flood_state_flag
• offset_mode_id

• Device_Temperature

• name
• temperature_raw
• temperature_calibrated

• Filter

• filter_name
• filter_id
• filter_number
• center_filter_wavelength
• full_width_half_maximum
• comment

• Processing_History

• Process

• Process_Owner

• producer_id
• producer_full_name
• producer_institution_name

• Software

• name
• version_id
• description
• user_id
• host_name
• Missing from attributes table: pds.start_date_time
• Missing from attributes table: pds.stop_date_time

• Telemetry_Parameters

• downlink_telemetry_protocol_type
• telemetry_application_id
• telemetry_application_name
• telemetry_application_subtype_id
• telemetry_provider_id
• earth_received_start_date_time
• earth_received_stop_date_time

• Packet_Parameters

• packet_creation_sclk
• packet_creation_date_time
• expected_packets
• received_packets
• missing_packet_flag
• packet_map_mask

• Command_Parameters
• Device_Temperature
• Filter
• Imaging_Instrument_Parameters
• Instrument_Compression_Parameters
• Packet_Parameters
• Process
• Processing_History
• Process_Owner
• Producer_Name
• Software
• SPICE_File
• Telemetry_Parameters

• center_filter_wavelength
• command_sequence_number
• comment
• crosstrack_summing
• description
• downlink_telemetry_protocol_type
• downtrack_summing
• earth_received_start_date_time
• earth_received_stop_date_time
• expected_packets
• exposure_count
• exposure_duration
• exposure_type
• filter_id
• filter_name
• filter_number
• first_line
• first_line_sample
• full_width_half_maximum
• gain_mode_id
• host_name
• light_flood_state_flag
• missing_packet_flag
• name
• offset_mode_id
• packet_creation_date_time
• packet_creation_sclk
• packet_map_mask
• producer_full_name
• producer_id
• producer_institution_name
• received_packets
• telemetry_application_id
• telemetry_application_name
• telemetry_application_subtype_id
• telemetry_provider_id
• temperature_calibrated
• temperature_raw
• user_id
• version_id

Command_Parameters

Class Description: The Command_Parameters class contains attributes used to identify or describe the commands sent to a spacecraft to perform one or more actions resulting in the acquisition of the current data product.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Command_Parameters
Subclasses	none
Attributes	name	0..1
	description	0..1
	command_sequence_number	0..1
Associations	any (incomplete)

Device_Temperature

Class Description: The Device_Temperature class provides the temperature of some point on an instrumnet or other device.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Device_Temperature
Subclasses	none
Attributes	name	1
	temperature_raw	0..1
	temperature_calibrated	1
Associations	any (incomplete)

Filter

Class Description: The Filter class describes the filter associated with a particular observation. The filter may be identified by name, identifier, number or some combination of these.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Filter
Subclasses	none
Attributes	filter_name	0..1
	filter_id	0..1
	filter_number	0..1
	center_filter_wavelength	0..1
	full_width_half_maximum	0..1
	comment	0..1
Associations	any (incomplete)

Imaging_Instrument_Parameters

Class Description: The Imaging_Instrument_Parameters class contains attributes providing the values of any dynamic physical or operating characteristics of an instrument.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Imaging_Instrument_Parameters
Subclasses	none
Attributes	crosstrack_summing	0..1
	downtrack_summing	0..1
	exposure_count	0..1
	exposure_duration	0..1
	exposure_type	0..1
	first_line	0..1
	first_line_sample	0..1
	gain_mode_id	0..1
	light_flood_state_flag	0..1	On Off
	offset_mode_id	0..1
Associations	has_Device_Temperature	0..1	Device_Temperature
	has_Filter	0..*	Filter
	any (incomplete)

Packet_Parameters

Class Description: The Packet_Parameters class contains parameters describing the packetized telemetry data.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Packet_Parameters
Subclasses	none
Attributes	packet_creation_sclk	0..1
	packet_creation_date_time	0..1
	expected_packets	0..1
	received_packets	0..1
	missing_packet_flag	0..1	0 false 1 true
	packet_map_mask	0..1
Associations	none

Process

Class Description: The Process class describes an action taken upon a product, typically by a software program.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Process
Subclasses	none
Attributes	none
Associations	has_Process_Owner	0..1	Process_Owner
	has_Software	0..*	Software

Processing_History

Class Description: The Processing_History class provides a listing of the programs used to create the current product.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Processing_History
Subclasses	none
Attributes	none
Associations	has_Process	1..*	Process

Process_Owner

Class Description: The Process_Owner class describes the individual and/or organization that made changes to a product.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Process_Owner
Subclasses	none
Attributes	producer_id	0..1
	producer_full_name	0..*
	producer_institution_name	0..1
Associations	none

Software

Class Description: The Software class identifies the software program used to make changes to a product.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Software
Subclasses	none
Attributes	name	1
	version_id	0..1
	description	0..1
	user_id	0..1
	host_name	0..1
	pds.start_date_time (incomplete)
	pds.stop_date_time (incomplete)
Associations	none

Telemetry_Parameters

Class Description: The Telemetry_Parameters class contains downlink-related attributes used primarily during mission operations.

	Entity	Card	Value/Class
Hierarchy	pds:Tagged_NonDigital_Object
	. Telemetry_Parameters
Subclasses	Telemetry_Parameters_restricted
	Telemetry_Parameters_restricted
Attributes	downlink_telemetry_protocol_type	0..1	SFDU Data Product CFDP
	telemetry_application_id	0..1
	telemetry_application_name	0..1
	telemetry_application_subtype_id	0..1
	telemetry_provider_id	0..1	MPCS FDM TTACS TDS
	earth_received_start_date_time	0..1
	earth_received_stop_date_time	0..1
Associations	has_Packet_Parameters	0..1	Packet_Parameters
	any (incomplete)

center_filter_wavelength

The center_filter_wavelength attribute provides the mid_point wavelength value between the minimum and maximum instrument filter wavelength values.

Type: ASCII_Real
Unit of Measure Type: Units_of_Length
Nillable: true
Steward: img
Name Space Id: img


command_sequence_number

The command_sequence_number attribute provides a numeric identifier for a sequence of commands sent to a spacecraft or instrument.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


comment

The comment attribute provides one or more remarks or thoughts relevant to the object.

Type: ASCII_Text_Preserved
Minimum Characters: 1
Nillable: false
Steward: pds
Name Space Id: pds


crosstrack_summing

The crosstrack_summing attribute provides the number of detector pixel values in the crosstrack direction that have been averaged to produce the final output pixel.

Type: ASCII_Integer
Minimum Value: 1
Maximum Value: 127
Nillable: false
Steward: img
Name Space Id: img


description

The description attribute provides a statement, picture in words, or account that describes or is otherwise relevant to the object.

Type: ASCII_Text_Preserved
Nillable: false
Steward: pds
Name Space Id: pds


downlink_telemetry_protocol_type

The downlink_telemetry_protocol_type attribute specifies the protocol used by the source of a telemetry stream for creating telemetry data products.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


Values:
- SFDU - Standard Formatted Data Unit; used by Cassini, Phoenix, Insight
- Data Product - Data Product file delivery protocol; used by MER and MSL.
- CFDP - CCSDS File Delivery Protocol; used by MRO, Juno


Terminological Entries:
- MSL:TELEMETRY_SOURCE_TYPE (English, PDS3)
- TELEMETRY_SOURCE_TYPE (English, PDS3)


downtrack_summing

The downtrack_summing attribute provides the number of detector pixel values in the downtrack direction that have been averaged to produce the final output pixel.

Type: ASCII_Integer
Minimum Value: 1
Maximum Value: 127
Nillable: false
Steward: img
Name Space Id: img


earth_received_start_date_time

The earth_received_start_date_time attribute provides the earliest time at which any component telemetry data for a particular product was received.

Type: ASCII_Date_Time_UTC
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- EARTH_RECEIVED_START_TIME (English, PDS3)
- EARTH_RECEIVED_TIME (English, PDS3)


earth_received_stop_date_time

The earth_received_stop_date_time attribute provides the latest time at which any component telemetry data for a particular product was received.

Type: ASCII_Date_Time_UTC
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- EARTH_RECEIVED_STOP_TIME (English, PDS3)


expected_packets

The expected_packets attribute provides the total number of telemetry packets which constitute a complete data product, i.e., a data product without missing data.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- EXPECTED_PACKETS (English, PDS3)


exposure_count

The exposure count attribute provides the maximum number of exposures taken during a specified interval. The value is dependent on exposure type.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


exposure_duration

The exposure_duration attribute provides the value of the time interval between the opening and closing of an instrument aperture (such as a camera shutter).

Type: ASCII_Real
Unit of Measure Type: Units_of_Time
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


exposure_type

The exposure_type attribute indicates the exposure setting on a camera.

Type: ASCII_Short_String_Collapsed
Maximum Characters: 15
Nillable: false
Steward: img
Name Space Id: img


filter_id

The filter_id attribute provides the number of an instrument filter through which an image or measurement was acquired or which is associated with a given instrument mode.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


filter_name

The filter_name attribute provides the commonly-used name of the instrument filter through which an image or measurement was acquired or which is associated with a given instrument mode.

Type: ASCII_Short_String_Collapsed
Minimum Characters: 1
Nillable: false
Steward: img
Name Space Id: img


filter_number

The filter_number attribute provides the numeric identifier of an instrument filter through which an image or measurement was acquired or which is associated with a given instrument mode. Within the bin class of a spectral data object, it identifies the filter through which data in the given band were acquired.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


first_line

The first_line attribute indicates the line within a source image that corresponds to the first line in a sub-image.

Type: ASCII_Integer
Minimum Value: 1
Nillable: false
Steward: img
Name Space Id: img


first_line_sample

The first_line_sample attribute indicates the sample within a source image that corresponds to the first sample in a sub-image.

Type: ASCII_Integer
Minimum Value: 1
Nillable: false
Steward: img
Name Space Id: img


full_width_half_maximum

The full_width_half_maximum attribute describes the width of a "bump" on a curve or function. It is given by the distance between points on the curve at which the function reaches half of its maximum value.

Type: ASCII_Real
Unit of Measure Type: Units_of_Length
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


gain_mode_id

The gain_mode_id attribute identifies the gain state of an instrument. Gain is a constant value which is multiplied with an instrument's output signal to increase or decrease the level of that output.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


host_name

The name of a computer on which a process was run.

Type: ASCII_Short_String_Collapsed
Minimum Characters: 1
Maximum Characters: 60
Nillable: false
Steward: img
Name Space Id: img


light_flood_state_flag

The light_flood_state_flag attribute indicates the mode (on or off) of light flooding for an instrument.

Type: ASCII_Short_String_Collapsed
Minimum Characters: 2
Maximum Characters: 3
Nillable: false
Steward: img
Name Space Id: img


Values:
- On - The light flooding is "on" for the instrument.
- Off - The light flooding is "off" for the instrument.


missing_packet_flag

The missing_packet_flag attribute indicates whether or not there were telemetry packets that were expected but not received.

Type: ASCII_Boolean
Nillable: false
Steward: img
Name Space Id: img


Values:
- 0 - All telemetry packets that were expected were received.
- false - All telemetry packets that were expected were received.
- 1 - Some telemetry packets that were expected were not received.
- true - Some telemetry packets that were expected were not received.


name

The name attribute provides a word or combination of words by which the object is known.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: pds
Name Space Id: pds


offset_mode_id

The offset_mode_id attribute identifies the analog value that is subtracted from the video signal prior to the analog/digital converters.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


packet_creation_date_time

The packet_creation_date_time attribute specifies the time, in standard UTC format, that data was packetized on board a spacecraft. This value is not always co-incident with the data acquisition time.

Type: ASCII_Date_Time
Nillable: false
Steward: img
Name Space Id: img


packet_creation_sclk

The packet_creation_sclk attribute specifies the value of the spacecraft clock at the time that data was packetized on board a spacecraft. This value is not always co-incident with the data acquisition time.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- PACKET_CREATION_SCLK (English, PDS3)


packet_map_mask

The packet_map_mask attribute is a binary or hexadecimal number identifying which of a data file's expected packets were actually received. The digits correspond positionally with the relative packet numbers of the data file. The bits are to be read left to right; i.e., the first (left-most) digit of the number corresponds to the first packet of the data file. A bit value of 1 indicates that the packet was received; a value of 0 indicates that it was not received.

Type: ASCII_Numeric_Base16
Nillable: false
Steward: img
Name Space Id: img


producer_full_name

The producer_full_name attribute provides the complete name for a person and includes titles and suffixes.

Type: ASCII_Short_String_Collapsed
Minimum Characters: 1
Maximum Characters: 127
Nillable: false
Steward: img
Name Space Id: img


producer_id

The producer_id attribute provides a short name or acronym identifying the organization or team which produced a product. Ex. "LRO_LROC_TEAM", "MIPL of JPL"

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


producer_institution_name

The producer_institution_name attribute identifies a university, research center, national space agency, or other institution associated with the production of a PDS archive. This is generally an institution associated with the Producer_Name. Ex. "Max Planck Institute", "NASA/Goddard Space Flight Center"

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


received_packets

The received_packets attribute provides the total number of telemetry packets which constitute a reconstructed data product, cf. expected_packets.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


telemetry_application_id

The telemetry_application_id attribute identifies the process, or source, which created the data. This can include information such as an identification of the instrument which generated the telemetry stream, its operating mode at the time of data acquisition, and any onboard compression of the data.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- APPLICATION_PACKET_ID (English, PDS3)
- APPLICATION_PROCESS_ID (English, PDS3)
- TELEMETRY_APPLICATION_ID (English, PDS3)
- TELEMETRY_FORMAT_ID (English, PDS3)


telemetry_application_name

The telemetry_application_name attribute provides the name associated with the source or process which created the data.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- APPLICATION_PACKET_NAME (English, PDS3)
- APPLICATION_PROCESS_NAME (English, PDS3)


telemetry_application_subtype_id

The telemetry_application_subtype_id attribute provides further distinction (i.e., greater specificity) among telemetry_application_id types.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img


Terminological Entries:
- APPLICATION_PROCESS_SUBTYPE_ID (English, PDS3)
- TELEMETRY_FMT_EXTENSION_TYPE (English, PDS3)


telemetry_provider_id

The telemetry_provider_id attribute identifies the organization or subsystem that supplied the telemetry data product to the producer of the raw (EDR) PDS data product. This is typically (but not always) the organization responsible for reassembling packetized data into a single product.

Type: ASCII_Short_String_Collapsed
Maximum Characters: 20
Nillable: false
Steward: img
Name Space Id: img


Values:
- MPCS - Mission data Processing and Control System (used by MSL)
- FDM - Front end Data Manager (used by JUNO and MRO)
- TTACS - Test Telemetry And Command Subsystem
- TDS - The DSN's Telemetry Data (or Delivery) System (alternately, "Telemetry Data Staging")


Terminological Entries:
- TELEMETRY_PROVIDER_ID (English, PDS3)
- TELEMETRY_PROVIDER_TYPE (English, PDS3)


temperature_calibrated

The temperature_calibrated attribute provides the temperature, in the specified units, of some point on an instrument or other device.

Type: ASCII_Real
Unit of Measure Type: Units_of_Temperature
Minimum Value: -273.15
Specified Units: degC
Nillable: false
Steward: img
Name Space Id: img


temperature_raw

The temperature_raw attribute provides the raw, uncalibrated, temperature of some point on an instrument or other device.

Type: ASCII_Integer
Minimum Value: 0
Nillable: false
Steward: img
Name Space Id: img


user_id

A short identifier used to run a computer process.

Type: ASCII_Short_String_Collapsed
Minimum Characters: 1
Maximum Characters: 60
Nillable: false
Steward: img
Name Space Id: img


version_id

The version_id attribute provides the version of the software program.

Type: ASCII_Short_String_Collapsed
Nillable: false
Steward: img
Name Space Id: img