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    <logical_identifier>urn:nasa:pds:a17hfe_thermal_conductivity:data:a17_hfe_p2_2</logical_identifier>
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    <title>Apollo 17 Lunar Surface Experiments Package Heat Flow Experiment Data Bundle: a17_hfe_p2_2.tab</title>
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      <description>This table contains Apollo 17 heat flow       
        data from probe 2:  Lower section gradient bridge DTG22                   
        (approximately 186 cm to 234 cm depth).</description>
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      <stop_date_time>1974-12-31T21:59:00Z</stop_date_time>
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