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            <author_list>Verma, A. K.</author_list>
            <publication_year>2022</publication_year>
            <description>This user guide describes how to use the python code included in this bundle. 
            
            Radio science data collected from NASA's Deep Space Networks (DSNs) are made available 
            in various formats through NASA’s Planetary Data System (PDS). The majority of these data are 
            packed in complex formats, making them inaccessible to users without specialized knowledge. This Python-based tool
            can preprocess the closed-loop archival tracking 
            data files (ATDFs), produce Doppler and range observables, and write them in an ASCII table along 
            with ancillary information. </description>
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        <author_list>Verma, A. K.</author_list>
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