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        <logical_identifier>urn:nasa:pds:a15ccig_atmos_density_plots:data:a15a_ccig_72_m018174</logical_identifier>
        <version_id>1.0</version_id>
        <title>Apollo 15 CCIG Atmospheric Density Plot Parameter Table a15a_ccig_72_m018174</title>
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        <product_class>Product_Observational</product_class>
        <Citation_Information>
            <publication_year>2025</publication_year>
            <description>Apollo 15 CCIG Atmospheric Density Plot Parameter Table a15a_ccig_72_m018174</description>
        </Citation_Information>
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        <Time_Coordinates>
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            <stop_date_time>1972-12-31T23:52:00Z</stop_date_time>
        </Time_Coordinates>
        <Primary_Result_Summary>
            <purpose>Science</purpose>
            <processing_level>Calibrated</processing_level>
        </Primary_Result_Summary>
        <Investigation_Area>
            <name>Apollo 15</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.apollo_15</lid_reference>
                <reference_type>data_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
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            <Observing_System_Component>
                <name>The Apollo 15 Lunar Surface Experiments Package</name>
                <type>Host</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.a15a</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
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            </Observing_System_Component>
            <Observing_System_Component>
                <name>Apollo 15 Lunar Surface Experiments Package Cold Cathode Ion Gage Experiment</name>
                <type>Instrument</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument:ccig.a15a</lid_reference>
                    <reference_type>is_instrument</reference_type>
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            <name>Moon</name>
            <type>Satellite</type>
            <Internal_Reference>
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                <reference_type>data_to_target</reference_type>
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        <Internal_Reference>
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            <file_name>a15a_ccig_72_m018174.tab</file_name>
            <creation_date_time>2007-10-02T20:00:00</creation_date_time>
            <comment>This table lists the start and stop times for each digitally-scanned Apollo 15 CCIG atmospheric density 
                plot in the document_density_plots collection.</comment>
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            <records>644</records>
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                <fields>5</fields>
                <groups>0</groups>
                <record_length unit="byte">136</record_length>
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                    <name>Frame File Name</name>
                    <field_number>1</field_number>
                    <field_location unit="byte">1</field_location>
                    <data_type>ASCII_String</data_type>
                    <field_length unit="byte">28</field_length>
                    <description>This column provides the file name for a digitally-scanned plot (frame) located in the 
                        document_density_plots collection.</description>
                </Field_Character>
                <Field_Character>
                    <name>Data Start Time</name>
                    <field_number>2</field_number>
                    <field_location unit="byte">32</field_location>
                    <data_type>ASCII_String</data_type>
                    <field_length unit="byte">9</field_length>
                    <description>This column provides the start time of the frame and usually the beginning of the plotted 
                        data. The formation rule is DDD/hh/mm, where DDD is the day of year, hh is the hour of day, and mm 
                        is the minutes with the hour.</description>
                </Field_Character>
                <Field_Character>
                    <name>Data End Time</name>
                    <field_number>3</field_number>
                    <field_location unit="byte">44</field_location>
                    <data_type>ASCII_String</data_type>
                    <field_length unit="byte">9</field_length>
                    <description>This column provides the stop time of the plotted data. The data can stop at the end of the 
                        frame or at other places on the frame. The formation rule is DDD/hh/mm, where DDD is the day of year, 
                        hh is the hour of day, and mm is the minutes with the specified hour.</description>
                </Field_Character>
                <Field_Character>
                    <name>Frame End Time</name>
                    <field_number>4</field_number>
                    <field_location unit="byte">56</field_location>
                    <data_type>ASCII_String</data_type>
                    <field_length unit="byte">9</field_length>
                    <description>This column provides the time at which the actual frame ended. This could be the same time 
                        as when the plotted data ended. The formation rule is DDD/hh/mm, where DDD is the day of year, hh is 
                        the hour of day, and mm is the minutes with the specified hour.</description>
                </Field_Character>
                <Field_Character>
                    <name>Comments</name>
                    <field_number>5</field_number>
                    <field_location unit="byte">68</field_location>
                    <data_type>ASCII_String</data_type>
                    <field_length unit="byte">67</field_length>
                    <description>This column provides any notes or anomalies that were recorded by personnel who were 
                        digitally-scanning the frames.</description>
                </Field_Character>
            </Record_Character>
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