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        <logical_identifier>urn:nasa:pds:voyager2_rss_jupiter_raw:calib_freq:vgr_uso</logical_identifier>
        <version_id>1.0</version_id>
        <title>Voyager 1/2 USO Frequency Estimates</title>
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        <Citation_Information>
            <publication_year>2000</publication_year>
            <description>
                Estimates of S- and X-band frequencies transmitted by the Voyager
                spacecraft during radio occultation experiments (and tests) at or near 
                Jupiter, Saturn, Uranus, and Neptune.  Only some of the possible
                combinations are included.
            </description>
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        <Modification_History>
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                <modification_date>2023-11-05</modification_date>
                <version_id>1.0</version_id>
                <description>
                    An original file recovered from Richard Simpson's archives listing USO frequencies
                    at various times during the Voyager 1 and 2 flights to the outer solar system.
                    The original version of the document was an ASCII text file.  The original file
                    has been retained except that Carriage-Return line delimiters have been replaced
                    by Carriage-Return Line-Feed delimiters.
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        <document_name>Voyager 1/2 USO Frequency Estimates</document_name>
        <publication_date>2000-08-11</publication_date>
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            <edition_name>Voyager 1/2 USO Frequency Estimates</edition_name>
            <language>English</language>
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