The InSight mission dictionary contains classes and attributes specific to
the InSight mission and its instruments.
InSight version 1.8.3.0 last updated 2018-07-10 15:35Z
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The ASCII_Equivalent class contains attributes
that identify and locate the ASCII data product equivalent to a
given SEIS SEED data product.
The Metadata_Location class contains attributes
that identify and locate the metadata associated with a given
SEIS data product.
The Observation_Information class provides
information about a science observation.
The SEED_Equivalent class contains attributes
that identify and locate the SEED data product equivalent to a
given SEIS ASCII data product.
Attributes specific to the InSight Seismometer
data products
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
pds namespace.
SEIS data products are archived in their native
SEED format and in a PDS-compatible ASCII format. The
ascii_equivalent_file_name attribute gives the name of the file
that is the ASCII equivalent of a SEED format file.
A SEIS data product contains data from a single
location and single instrument channel. The channel_name
uniquely identifies the location and channel pair using the
format NN.AAA, where NN is a two-digit location number and AAA
is a three-character channel code (uppercase letters or digits).
The complete list of channel names may be found in the Channel
Naming document in the SEIS document
collection.
The local_true_solar_time_sol element specifies
the number of solar days elapsed since a reference day (e.g. the
day on which a landing vehicle set down) for local true solar
time (LTST). Days are measured in rotations of the planet in
question from midnight to midnight. The reference day is '0', as
Landing day is Sol 0. If before Landing day, then value will be
less than or equal to '0' and can be negative.
The mars_year element specifies the number of
the Mars year relative to the reference date of April 11, 1955
(Mars solar longitude 0), which is defined as the start of Mars
year 1.
SEIS observations are stored with the seismic
data from the instrument in one file (mini-SEED or GeoCSV
format) and the metadata for the measurements in another file
(dataless SEED or StationXML format). The metadata_file_name
attribute gives the name of the file containing the metadata
associated with a given data file.
The mission_phase_name identifies a time period
within the mission.
The product_type identifies a group of data
products within a collection that have some property in common,
such as processing level, resolution, or instrument-specific
setting.
Release_number is the number of a scheduled
release of InSight data from PDS. The first Insight data release
is Release 1. The release_number for a given product is always
the first release in which it appears, and does not change if
the product is revised later.
Sample_count is the number of samples in a SEIS
mini-SEED or GeoCSV product.
Sampling_rate represents the number of samples
per second (local on-board seconds). Because the instrument
(EBox) clock drift is dependent on temperature, sampling_rate
various over UTC time. However, this variation is small enough
so as to be negligible and can be ignored for scientific
analyses.
SEIS data products are archived in their native
SEED format and in a PDS-compatible ASCII format. The
seed_file_name attribute gives the name of the file that is the
SEED equivalent of an ASCII data file.
SEIS mini-SEED products and their equivalent
GeoCSV products contain only seismic data, and therefore have
the seis_data_type "waveform". SEIS dataless SEED products and
their equivalent StationXML products contain only metadata for
the seismic data files, and therefore have the seis_data_type
"metadata".
Software_name identifies the processing software
used to generate a data product.
Software_version_id identifies the version of
the processing software used to generate a data
product.
Sol_number is the number of the Mars day on
which an observation was acquired. Landing day is Sol
0.
The spacecraft_clock_count_partition provides
the clock partition active for the spacecraft_clock_start_count
and spacecraft_clock_stop_count attributes. This attribute may
be used when the spacecraft_clock values do not include a
partition number.
The spacecraft_clock_start_count is the value of
the spacecraft clock at the beginning of an observation. It
represents the number of ticks. If a fractional value is
present, it represents the number of 1/65536
ticks.
The spacecraft_clock_stop_count is the value of
the spacecraft clock at the end of an
observation.
Start_local_mean_solar_time is the local mean
solar time, as defined in the main PDS4 data dictionary, at the
beginning of an observation.
Start_local_true_solar_time is the local true
solar time, as defined in the main PDS4 data dictionary, at the
beginning of an observation.
Start_sol_number is the number of the Mars day
on which a multiple-day observation was begun. Landing day is
Sol 0.
Start_solar_longitude is the solar longitude, as
defined in the main PDS4 data dictionary, at the beginning of an
observation.
Stop_local_mean_solar_time is the local mean
solar time, as defined in the main PDS4 data dictionary, at the
end of an observation.
Stop_local_true_solar_time is the local true
solar time, as defined in the main PDS4 data dictionary, at the
end of an observation.
Stop_sol_number is the number of the Mars day on
which a multiple-day observation was ended. Landing day is Sol
0.
Stop_solar_longitude is the solar longitude, as
defined in the main PDS4 data dictionary, at the end of an
observation.