Comments by SBN:T.Barnes for the 2022-10-18 peer review.

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NOTE:

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Datasets Validated:
	urn:nasa:pds:gbo-lowell::1.0
	urn:nasa:pds:gbo-lowell:lowellphot::1.0

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Errors for:	GLOBAL (all datasets)

Missing context objects:
--> urn:nasa:pds:context:telescope:lowell-anderson_mesa.hall_ritchey-chretien_1_1m07
--> urn:nasa:pds:context:instrument:multi-host.kron_photometer

file: 'lowellphot/collection.xml'
--> Reminder for SBN or provider to provide DOI information in this file for the collection.
--> I recommend <Identification_Area><title> change in case the range of data changes and you wish to supersede the data set instead of creating a new data set.

files: 'lowellphot/data/lowellphot18may21apr.csv'
--> There are 2374 cases of "NaN" values in this file.  Please replace with a valid ASCII_Real value.
--> The first column is described as a UTF8_String, but would it be more useful for it to be a date format (ASCII_Date_*).  This would require changing the format of the column since the current date values are not in a valid PDS format.

file: 'lowellphot/overview.xml'
--> Sanity check, are all of these papers (<External_Reference>) necessary to understand this data or in the creation of this data product?  Should any of these be moved to the collection.xml file?  From what I can tell, none of these are mentioned in the overview document itself.