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<Product_Ancillary xmlns="http://pds.nasa.gov/pds4/pds/v1" 
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    xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1  https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1N00.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:mro_crism_trdr_2103:miscellaneous:trdr0902_index</logical_identifier>
    <version_id>1.0</version_id>
    <title>MRO CRISM TRDR PDS3 Index Table - 2009-02</title>
    <information_model_version>1.23.0.0</information_model_version>
    <product_class>Product_Ancillary</product_class>
    <Citation_Information>
      <publication_year>2025</publication_year>
      <description>
        PDS3 Index Table for MRO CRISM TRDR data acquired in 2009-02
      </description>
    </Citation_Information>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2025-05-01</modification_date>
        <version_id>1.0</version_id>
        <description>Initial version</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Context_Area>
    <Time_Coordinates>
      <start_date_time>2009-02-01Z</start_date_time>
      <stop_date_time>2009-03-01Z</stop_date_time>
    </Time_Coordinates>
    <Investigation_Area>
      <name>MARS RECONNAISSANCE ORBITER</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.mars_reconnaissance_orbiter</lid_reference>
        <reference_type>ancillary_to_investigation</reference_type>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <name>CRISM</name>
      <Observing_System_Component>
        <name>MARS RECONNAISSANCE ORBITER</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.mro</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>COMPACT RECONNAISSANCE IMAGING SPECTROMETER FOR MARS</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:crism.mro</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>
    <Target_Identification>
      <name>Mars</name>
      <type>Planet</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:planet.mars</lid_reference>
        <reference_type>ancillary_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
  </Context_Area>
  <File_Area_Ancillary>
    <File>
      <file_name>trdr0902_index.tab</file_name>
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    <Table_Delimited>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS DSV 1</parsing_standard_id>
      <description>This index table lists information about each of the data products contained on this archive volume.
        All CRISM index tables use the same set of columns. Some columns may contain the value N/A, indicating that the column 
        does not apply to this CRISM data set.</description>
      <records>27984</records>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <field_delimiter>Comma</field_delimiter>
      <Record_Delimited>
        <fields>57</fields>
        <groups>0</groups>
        <Field_Delimited>
          <name>volume_id</name>
          <field_number>1</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The identifier of the volume on which the product is stored.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>product_id</name>
          <field_number>2</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            A permanent, unique identifier assigned to a data product by its producer.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>product_type</name>
          <field_number>3</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The type or category of a product within a dataset.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>file_specification_name</name>
          <field_number>4</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The full name of a file, including a path name, relative to a PDS volume. It excludes node or volume location.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>participating_instruments</name>
          <field_number>5</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            A character string indicating the instruments that were planned to participate in the observation that generated 
            this product. C = CRISM, H = HiRISE, and X = CTX.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>product_creation_time</name>
          <field_number>6</field_number>
          <data_type>ASCII_Date_Time_YMD</data_type>
          <description>
            UTC date and time when this product was created, in the format yyyy-mm-ddThh:mm:ss.sss.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>start_time</name>
          <field_number>7</field_number>
          <data_type>ASCII_Date_Time_YMD</data_type>
          <description>
            UTC date and time at the beginning of data acquisition for this product, in the format yyyy-mm-ddThh:mm:ss.sss.
          </description>
          <Special_Constants>
            <missing_constant>9999-01-01T01:01:01</missing_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>stop_time</name>
          <field_number>8</field_number>
          <data_type>ASCII_Date_Time_YMD</data_type>
          <description>
            UTC date and time at the end of data acquisition for this product, in the format yyyy-mm-ddThh:mm:ss.sss.
          </description>
          <Special_Constants>
            <missing_constant>9999-01-01T01:01:01</missing_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>spacecraft_clock_start_count</name>
          <field_number>9</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The value of the spacecraft clock at the beginning of a time period of interest.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>spacecraft_clock_stop_count</name>
          <field_number>10</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The value of the spacecraft clock at the end of a time period of interest.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>orbit_number</name>
          <field_number>11</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The number of the orbital revolution of the spacecraft around a target body.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>observation_type</name>
          <field_number>12</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The general type of an observation.</description>
        </Field_Delimited>
        <Field_Delimited>
          <name>observation_id</name>
          <field_number>13</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Uniquely identifies a scientific observation within a data set.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:observation_number</name>
          <field_number>14</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The monotonically increasing ordinal counter of the EDRs generated for a particular CRISM OBSERVATION_ID.
          </description>
          <Special_Constants>
            <missing_constant>-99997</missing_constant>
            <unknown_constant>-99998</unknown_constant>
            <not_applicable_constant>-99999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:activity_id</name>
          <field_number>15</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Identifies the type of measurement contained in a CRISM EDR or other CRISM data product, and provides indication 
            of how the observation is commanded.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:sensor_id</name>
          <field_number>16</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Identifies the CRISM focal plane from which data in an EDR or RDR were returned.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>product_version_id</name>
          <field_number>17</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Identifies the version of an individual product within a data set.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>target_center_distance</name>
          <field_number>18</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>km</unit>
          <description>
            The distance between an instrument and the center of mass of the named target.
          </description>
          <Special_Constants>
            <missing_constant>-999999997.777</missing_constant>
            <unknown_constant>-999999998.888</unknown_constant>
            <not_applicable_constant>-999999999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>solar_distance</name>
          <field_number>19</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>km</unit>
          <description>
            The distance from the center of the sun to the center of a target body.
          </description>
          <Special_Constants>
            <missing_constant>-999999997.777</missing_constant>
            <unknown_constant>-999999998.888</unknown_constant>
            <not_applicable_constant>-999999999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>shutter_mode_id</name>
          <field_number>20</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Identifies the state of an imaging instrument's shutter during image acquisition.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>light_source_name</name>
          <field_number>21</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The name of the light source used in observations when it is not the Sun.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:calibration_lamp_status</name>
          <field_number>22</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The status of the CRISM calibration lamp identified by LIGHT_SOURCE_NAME.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:calibration_lamp_level</name>
          <field_number>23</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The level of the CRISM calibration lamp identified by LIGHT_SOURCE_NAME.
          </description>
          <Special_Constants>
            <missing_constant>-997</missing_constant>
            <unknown_constant>-998</unknown_constant>
            <not_applicable_constant>-999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>pixel_averaging_width</name>
          <field_number>24</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The horizontal dimension, in pixels, of the area over which pixels were averaged prior to image compression.
          </description>
          <Special_Constants>
            <missing_constant>-97</missing_constant>
            <unknown_constant>-98</unknown_constant>
            <not_applicable_constant>-99</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:instrument_pointing_mode</name>
          <field_number>25</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The pointing mode of the CRISM gimbal.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>scan_mode_id</name>
          <field_number>26</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            One of several internal rates for data acquisition by an instrument.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:frame_rate</name>
          <field_number>27</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>Hz</unit>
          <description>
            The rate at which frames of data in a CRISM EDR were returned.
          </description>
          <Special_Constants>
            <missing_constant>-77.77</missing_constant>
            <unknown_constant>-88.88</unknown_constant>
            <not_applicable_constant>-99.99</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:exposure_parameter</name>
          <field_number>28</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The value supplied to the CRISM instrument to command the exposure time.
          </description>
          <Special_Constants>
            <missing_constant>-97</missing_constant>
            <unknown_constant>-98</unknown_constant>
            <not_applicable_constant>-99</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>sampling_mode_id</name>
          <field_number>29</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The resolution mode of a wavelength or frequency channel.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>compression_type</name>
          <field_number>30</field_number>
          <data_type>ASCII_String</data_type>
          <description>The type of compression/encoding used for data that was subsequently decompressed/unencoded before 
            storage.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:wavelength_filter</name>
          <field_number>31</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            Identifies which of four CRISM onboard menus of rows was selected for downlink.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:wavelength_file_name</name>
          <field_number>32</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The name of the file that describes wavelength sampling in a CRISM EDR or RDR.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:pixel_proc_file_name</name>
          <field_number>33</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The name of the file that documents the CRISM onboard compression options selected.
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:lookup_table_file_name</name>
          <field_number>34</field_number>
          <data_type>ASCII_String</data_type>
          <description>
            The name of the CRISM lookup table file that gives the 8-bit DN value replacing each 12-bit DN value if lossy 
            compression is performed (if COMPRESSION_TYPE=8_BIT).
          </description>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:detector_temperature</name>
          <field_number>35</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>celsius</unit>
          <description>
            The temperature of the sensors.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:optical_bench_temperature</name>
          <field_number>36</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>celsius</unit>
          <description>
            The temperature of the CRISM optical bench.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:spectrometer_housing_temperature</name>
          <field_number>37</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>celsius</unit>
          <description>
            The temperature of the CRISM spectrometer
            housing.</description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:sphere_temperature</name>
          <field_number>38</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>celsius</unit>
          <description>
            The temperature of the CRISM onboard integrating sphere.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>mro:fpe_temperature</name>
          <field_number>39</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>celsius</unit>
          <description>
            The temperature of the IR focal plane electronics (if MRO:SENSOR_ID = L), or the VNIR focal plane electronics
            (if MRO:SENSOR_ID = S).
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>lines</name>
          <field_number>40</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The total number of data instances along the vertical axis of an image.
          </description>
          <Special_Constants>
            <missing_constant>-997</missing_constant>
            <unknown_constant>-998</unknown_constant>
            <not_applicable_constant>-999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>line_samples</name>
          <field_number>41</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The total number of data instances along the horizontal axis of an image.
          </description>
          <Special_Constants>
            <missing_constant>-997</missing_constant>
            <unknown_constant>-998</unknown_constant>
            <not_applicable_constant>-999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>bands</name>
          <field_number>42</field_number>
          <data_type>ASCII_Integer</data_type>
          <description>
            The number of spectral bands in image or other object.
          </description>
          <Special_Constants>
            <missing_constant>-9997</missing_constant>
            <unknown_constant>-9998</unknown_constant>
            <not_applicable_constant>-9999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>center_latitude</name>
          <field_number>43</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            A reference latitude for certain map projections.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>center_longitude</name>
          <field_number>44</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            A reference longitude for certain map projections.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>map_resolution</name>
          <field_number>45</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>pixel/degree</unit>
          <description>
            The scale of a given map.
          </description>
          <Special_Constants>
            <missing_constant>-997.7777777</missing_constant>
            <unknown_constant>-998.8888888</unknown_constant>
            <not_applicable_constant>-999.9999999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>maximum_latitude</name>
          <field_number>46</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            The northernmost latitude of a spatial area.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>minimum_latitude</name>
          <field_number>47</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            The southernmost latitude of a spatial area.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>westernmost_longitude</name>
          <field_number>48</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            The minimum numerical value of longitude unless it crosses the Prime Meridian.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>easternmost_longitude</name>
          <field_number>49</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            The maximum numerical value of longitude unless it crosses the Prime Meridian.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>lower_right_latitude</name>
          <field_number>50</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual latitude of the surface point at the edge of the FOV on the antisunward (right-hand) side of the 
            groundtrack at the observation start.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>lower_right_longitude</name>
          <field_number>51</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual longitude of the surface point at the edge of the FOV on the antisunward (right-hand) side of the 
            groundtrack at the observation start.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>lower_left_latitude</name>
          <field_number>52</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual latitude of the surface point at the edge of the FOV on the sunward (left-hand) side of the groundtrack at 
            the observation start.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>lower_left_longitude</name>
          <field_number>53</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual longitude of the surface point at the edge of the FOV on the sunward (left-hand) side of the groundtrack at 
            the observation start.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>upper_right_latitude</name>
          <field_number>54</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual latitude of the surface point at the edge of the FOV on the antisunward (right-hand) side of the 
            groundtrack at the observation end.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>upper_right_longitude</name>
          <field_number>55</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual longitude of the surface point at the edge of the FOV on the antisunward (right-hand) side of the 
            groundtrack at the observation end.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>upper_left_latitude</name>
          <field_number>56</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual latitude of the surface point at the edge of the FOV on the sunward (left-hand) side of the groundtrack at 
            the observation end.
          </description>
          <Special_Constants>
            <missing_constant>-97.777</missing_constant>
            <unknown_constant>-98.888</unknown_constant>
            <not_applicable_constant>-99.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
        <Field_Delimited>
          <name>upper_left_longitude</name>
          <field_number>57</field_number>
          <data_type>ASCII_Real</data_type>
          <unit>degree</unit>
          <description>
            Actual longitude of the surface point at the edge of the FOV on the sunward (left-hand) side of the groundtrack at 
            the observation end.
          </description>
          <Special_Constants>
            <missing_constant>-997.777</missing_constant>
            <unknown_constant>-998.888</unknown_constant>
            <not_applicable_constant>-999.999</not_applicable_constant>
          </Special_Constants>
        </Field_Delimited>
      </Record_Delimited>
    </Table_Delimited>
  </File_Area_Ancillary>
</Product_Ancillary>
