VARIOUS GROUND-BASED TELESCOPES
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  Instrument Host Overview                                                    
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    This instrument host is used for those datasets that consist of           
    surveys taken, usually over long periods of time, at various              
    ground-based observatories.  The VARGBTEL host is used when it is         
    not possible or practical to attempt to determine which specific          
    observatory and/or telescope was used for individual results              
    reported.  Some additional more specific information may be               
    available in the published references cited in the corresponding          
    data set description.