The LRO dictionary contains classes that describe aspects of the
Lunar Reconnaissance Orbiter mission and related instruments.
LRO version 1.0.0.0
PDS Build 1.17.0.0 (1H00)
LDDTool version 13.1.0
Created with lddtool -plJ PDS4_LRO_IngestLDD.xml
The Channel_Range class contains spectral
parameters for specific Diviner channels.
The Diviner_Parameters class is the container
for Diviner-specific observation parameters.
The Geodetic_Model class provides parameters
describing the shape of the planet.
The LOLA_Parameters class is the container for
LOLA-specific observation parameters.
The LROC_Parameters class is the container for
LROC-specific observation parameters.
The LRO_Parameters class is the container for
mission-specific metadata elements.
The MiniRF_Parameters class is the container for
MiniRF-specific observation parameters.
The Parameter_Range class contains the minimum
and maximum values of Diviner parameters.
This section contains the simpleTypes that provide more constraints
than those at the base data type level. The simpleTypes defined here build on the base data
types. This is another component of the common dictionary and therefore falls within the
common namespace.
The a_axis_radius attribute provides the radius
of the equatorial axis of the ellipsoid. The IAU calls this
"Subplanetary equatorial radius" and mapping applications
generally call this "semi_major_axis".
The true resolution of the radar image in the
azimuth (along track) direction, evaluated at the center of the
image for the transmit, receive, and processing parameters used
for the sequence.
The b_axis_radius attribute provides the value
of the intermediate axis of the ellipsoid that defines the
approximate shape of a target body. The b_axis_radius is usually
in the equatorial plane. The IAU calls this axis "along orbit
equatorial radius". Mapping applications, which generally only
define a sphere or an ellipse, do not support this radius
parameter.
_TBD
The band_code records the commanded band code
for a WAC observation.
Set to the temperature of the LROC FPA in
degrees Celsius, as converted from the raw engineering counts,
at the beginning of a series of WAC frames.
Set to the raw engineering counts for the LROC
(F)ocal (P)lane (A)rray at the beginning of a series of WAC
frames.
Set to the temperature of the LROC SCS in
degrees Celsius, as converted from the raw engineering counts,
at the beginning of a series of WAC frames.
Set to the raw engineering counts for the LROC
SCS at the beginning of a series of WAC
frames.
NAC companding bterm 1
NAC companding bterm 2
NAC companding bterm 3
NAC companding bterm 4
NAC companding bterm 5
The c_axis_radius attribute provides the value
of the polar axis of the ellipsoid that defines the approximate
shape of a target body. The c_axis_radius is normal to the plane
defined by the a_axis_radius and b_axis_radius. The IAU calls
this "polar radius". Mapping applications generally call this
"semi_minor_axis"
The version of calibration software used to
generate a data product.
One of nine Diviner channels.
Records the commanded NAC channel A offset for
either the NAC LEFT or NAC RIGHT.
Records the commanded NAC channel B offset for
either the NAC LEFT or NAC RIGHT.
Indicates which stored companding table was used
(0-7)
The number of lines of data in a data product
that are complete; that is, with no missing
data.
Indicates if lossless compression was commanded
(0=no, 1=yes)
The given name of the used coordinate system.
e.g. "MEAN EARTH/POLAR AXIS OF DE421"
There are three basic types of coordinate
systems: body-fixed rotating, body-fixed non-rotating, and
inertial. A body-fixed coordinate system is one associated with
the body (e.g., a planet or satellite). The body-fixed system is
centered on the body and rotates with the body (unless it is a
non-rotating type), whereas an inertial coordinate system is
fixed at some point in space. Currently, the PDS has
specifically defined two types of body-fixed rotating coordinate
systems: planetocentric and planetographic. However, the set of
related data elements are modeled such that definitions for
other body-fixed rotating coordinate systems, body-fixed
non-rotating and inertial coordinate systems can be added as the
need arises. Contact a PDS data engineer for assistance in
defining a specific coordinate system.
Records the commanded DAC reset level for either
the NAC LEFT or NAC RIGHT.
The data_quality_desc attribute describes the
data qualities associated with a data_quality_id attribute.
The data_quality_id attribute provides a numeric
key which identifies the quality of data available for a
particular time period. The data_quality_id scheme is unique to
a given instrument and is described by the associated
data_quality_desc attribute.
Gives the maximum recorded date value in a DLRE
RDR data product.
Gives the minimum recorded date value in a DLRE
RDR data product.
The version of Diviner geometry and averaging
software used to generate a Diviner GDR product. Example value:
1.0.
Diviner instrument operating
mode.
An unordered set of all orientations recorded
from activity flags in a DLRE RDR data product.
Gives the maximum recorded UTC value in a DLRE
RDR data product.
Gives the minimum recorded UTC value in a DLRE
RDR data product.
The version of Diviner Remote Electronics Box
flight software used to acquire the telemetry data for a data
product.
Set to the temperature of the LROC FPA in
degrees Celsius, as converted from the raw engineering counts,
at the end of a series of WAC frames.
Set to the raw engineering counts for the LROC
(F)ocal (P)lane (A)rray at the end of a series of WAC
frames.
Set to the temperature of the LROC SCS in
degrees Celsius, as converted from the raw engineering counts,
at the end of a series of WAC frames.
Set to the raw engineering counts for the LROC
SCS at the end of a series of WAC frames.
Records the commanded exposure code for a WAC
observation.
Indicates whether a file possibly contains
potentially corrupted data.
Identifies the version of the instrument flight
software used to acquire the data.
For NAC, records if the image was acquired from
the "LEFT" or "RIGHT" NAC.
Records the commanded WAC mode: BW, COLOR, VIS
or UV.
Set to the value of the interframe delay between
WAC framelets. Keyword can have values between 25/64 and 280/64
seconds, in 1/64 seconds increments.
Records the commanded interframe gap code for a
WAC observation.
The latitude_type attribute defines the type of
latitude (planetographic, planetocentric) used within a
cartographic product and as reflected in attribute values within
associated PDS labels. For planets and satellites, latitude is
measured north and south of the equator; north latitudes are
designated as positive. The planetocentric latitude is the angle
between the equatorial plane and a line from the center of the
body. The planetographic latitude is the angle between the
equatorial plane and a line that is normal to the body. In
summary, both latitudes are equivalent on a sphere (i.e.,
equatorial radius equal to polar radius); however, they differ
on an ellipsoid (e.g., Mars, Earth). For more on latitude_type,
please see the IAU publication available here:
http://astrogeology.usgs.gov/groups/IAU-WGCCRE
Records the commanded value for the number of
NAC lines to acquire, in 1024 increments. (LINES = LINES_CODE *
1024)
Index range from 0 to 4095 each corresponding to
one LINE_EXPOSURE_DURATION increment.
For NAC products, LINE_EXPOSURE_DURATION can
have values between 337.6 and 35,281.6 microseconds, in 128/15
microsecond increments (LINE_EXPOSURE_DURATION =
[LINE_EXPOSURE_CODE * 128/15] + 337.6)
Gives the version of the LOLA digital elevation
model that was used to locate Diviner footprints for the
generation of a Diviner GDR product. Example value: 1.0.
LOLA instrument operating
mode.
The longitude_direction attribute identifies the
direction of longitude (e.g. POSITIVE_EAST or POSITIVE_WEST) for
a planet. The IAU definition for direction of positive longitude
should be adopted:
http://astrogeology.usgs.gov/groups/IAU-WGCCRE. Typically, for
planets with prograde (direct) rotations, positive longitude
direction is to the west. For planets with retrograde rotations,
positive longitude direction is to the east. Generally the
Positive West longitude_direction is used for planetographic
systems and Positive East is used for planetocentric systems. If
the data is defined with Spatial_Domain in a manner not
recommended by the IAU, there is a optional
Secondary_Spatial_Domain section to define a second set of
bounding coordinates.
The East-West look azimuth discrimination angle.
This is the angle between the projection of North into the
tangent plane of a sphere at the image center point and the
vector from subspacecraft point to the image center projected
into the plane. It assumes values from 0 to 360, where 0 means
North-looking, 90 East-looking, 180 South-looking, and 270
West-looking.
Always set to STORED.
Set to the temperature of the LROC FPA in
degrees Celsius, as converted from the raw engineering counts,
at the middle of a series of WAC frames.
Set to the raw engineering counts for the LROC
(F)ocal (P)lane (A)rray at the middle of a series of WAC
frames.
Set to the temperature of the LROC SCS in
degrees Celsius, as converted from the raw engineering counts,
at the middle of a series of WAC frames.
Set to the raw engineering counts for the LROC
SCS at the middle of a series of WAC frames.
The total number of lines of data missing from
an image or observation when it was received on
Earth.
The mission_phase_name attribute provides the
mission-defined name of a time period within the mission.
Set to the mode value as commanded for both NAC
and WAC observations.
NAC companding mterm 1
NAC companding mterm 2
NAC companding mterm 3
NAC companding mterm 4
NAC companding mterm 5
Records the commanded number of frames for a WAC
observation.
Identifies the general type of an
observation.
The orbit_number attribute identifies the number
of the orbital revolution around a target body.
The maximum value for the Diviner parameter
specified by lro.parameter_name.
The minimum value for the Diviner parameter
specified by lro.parameter_name.
Diviner parameter name.
The number of lines of data in a data product
that contain partial but incomplete data.
The UTC time and date at the start of the image
acquisition command, corresponding to the acquisition of 1024
lines at the given exposure prior to the actual image
acquisition.
The producer_institution_name attribute
identifies a university, research center, NASA center, or other
institution associated with the production of a data product.
The product_type attribute indicates the
processing level of an individual data
product.
The product_version_id attribute identifies the
version of an individual data product.
The maximum recorded value of radiance for the
channel given by lro:channel in a DLRE RDR data
product.
The minimum recorded value of radiance for the
channel given by lro:channel in a DLRE RDR data product.
The true resolution of the radar image in the
range (across track) direction, evaluated at the center of the
image for the transmit, receive, and processing parameters used
for the sequence.
The rationale_desc attribute describes the
rationale for performing a particular
observation.
The software_version_id element indicates the
version (development level) of a program or a program
library.
The spacecraft_clock_count_partition attribute
indicates the clock partition active for the
spacecraft_clock_start_count and spacecraft_clock_stop_count
attributes.
Set to the sclk string for the start of an
observation preroll acquisition.
The spacecraft_clock_start_count attribute
provides the value of the spacecraft clock at the beginning of a
time period of interest.
The spacecraft_clock_stop_count attribute
provides the value of the spacecraft clock at the beginning of a
time period of interest.
Provides the the lowest revolution orbit number
that contributed data to a given data product.
Marks the beginning of a time range measured in
solar longitude. Solar longitude is the value of the angle
between the body_Sun line at the time of interest and the
body_Sun line at the vernal equinox, thus providing a measure of
the season on the target body.
Provides the name of the LRO Spacecraft Time
Correlation file, which is a housekeeping file containing the
offset between the spacecraft raw clock and terrestrial time.
The time correlation file is used to compute the start and stop
spacecraft clock times for LOLA data products.
Provides the the highest revolution orbit number
that contributed data to a given data product.
Marks the end of a time range measured in solar
longitude. Solar longitude is the value of the angle between the
body_Sun line at the time of interest and the body_Sun line at
the vernal equinox, thus providing a measure of the season on
the target body.
Provides the value of the angle, measured on the
target body surface, between the direction from a ground point
to the north pole and the direction from the ground point to the
sub-spacecraft point. If the location of the ground point at
which the azimuth is measured is not otherwise specified, it is
assumed to correspond to the center of the image. The values of
this angle increase in a clockwise direction. When a pair of
values is given, e.g. (350.0, 10.0), they represent the ordered
end-members of a range of ground azimuth values that extends
clockwise from the first to the second, modulo 360 degrees.
The maximum recorded value of brightness
temperature for the channel given by lro:channel in a DLRE RDR
data product.
The minimum recorded value of brightness
temperature for the channel given by lro:channel in a DLRE RDR
data product.
Set to the temperature of the LROC FPA in
degrees Celsius, as converted from the raw engineering
counts.
Set to the raw engineering counts for the LROC
(F)ocal (P)lane (A)rray.
Set to the temperature of the LROC FPGA in
degrees Celsius, as converted from the raw engineering
counts.
Set to the raw engineering counts for the LROC
(F)ield (P)rogrammable (G)ate (A)rray.
Set to the temperature of the LROC SCS in
degrees Celsius, as converted from the raw engineering
counts.
Set to the raw engineering counts for the LROC
SCS.
Set to the temperature of the LROC telescope
corresponding to NAC-L or NAC-R, as converted from the raw
engineering counts.
Set to the raw engineering counts for the LROC
Telescope corresponding to NAC-L or NAC-R.
The total number of lines of data in a data
product, including both complete lines and partial
lines.
The upload_id attribute describes a spacecraft
command set that is associated with the given data
product.
NAC companding xterm 1
NAC companding xterm 2
NAC companding xterm 3
NAC companding xterm 4
NAC companding xterm 5