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Liens for:	urn:nasa:pds:nh_derived:arrokoth_shapemodel_porter2024::1.0

issue: Context_Area Investigation for KEM2?
--> Some labels include KEM2 as an investigation, while others do not.  In all cases, KEM1 is included, which is when the source data was taken, but KEM2 is when the product was produced.  Please determine if you should include KEM2 across the board, and if the present listing is correct.  Correct as necessary.
--> --> urn:nasa:pds:context:investigation:mission.new_horizons_kem2: <name>New Horizons Kuiper Belt Extended Mission 2</name>
--> --> Files missing KEM2: albedo_arrokoth4_fp36h2_masked1.lblx, porteretal2024b.lblx
--> --> Files that have KEM2: arrokoth_porter_2024.lblx, collection.lblx

file: 'collection.lblx'
--> Please add to the Identification_Area.Citation_Information.description a <Funding_Acknowledgement> statement.  
--> Add a <Reference_List> and as a member an <internal_reference> to the overview document.  Don't forget to add a <comment> stating that this is an overview description of the collection.
--> The shape model says it used some/all resolved LORRI images from the Arrokoth encounter.  Please add to the <Reference_List> a Source_Product_Internal reference to urn:nasa:pds:nh_lorri:kem1_cal::1.0 collection.  Don't forget to add a <comment> stating that all of the resolved images between X and Y times were used.
--> If the Porter et al. (2024) paper is published before this collection has finished lien resolution and is archived, please add to the <Reference_list> an <external_reference> to the paper and don't forget to add an <description> stating this is the paper that describes XYZ.
--> Context_Area.* Context name mismatch.  Please update the following <name> for the LID:
--> --> for urn:nasa:pds:context:instrument_host:spacecraft.nh => "New Horizons"
--> --> for urn:nasa:pds:context:instrument:nh.lorri => "LOng Range Reconnaissance Imager"
--> The Collection.collection_type should be updated to "Data" from "Miscellaneous" since the primary purpose this collection is data.

file: 'overview.txt'
--> Recommend editing the text to specify the date, not just the year of the flyby.  

issue: Description of linking albedo maps to shape model
--> The definition of the two axes of the albedo images appear to be missing, (e.g., texture map coordinates).  Potential users of the albedo map will need clear information to link albedo values contained in the image with surface coordinates on the shape model (or with facets/vertices). If this relationship is performed through the "texture coordinates" contained in the OBJ file, I would recommend adding a clear explanation in the LBLX files.
--> --> Currently this is only described in the paper.  Here is a brief explanation:  The albedo map consists of two south polar azimuthal equidistant projections, one for each lobe. This projection was used to minimize distortion relative to the New Horizons images, and a separate projection was used for each lobe to avoid any coordinate ambiguity. The UV texture mapping in the OBJ file uses this projection.
--> --> Team will this description somewhere in the LBLSX file of the map.
--> --> Team will clearly state in the LBLX file of the shape model that the "texture coordinates" refer to the albedo map.

file: 'albedo_arrokoth4_fp36h2_masked1.lblx'
--> Context_Area.* Context name mismatch.  Please update the following <name> for the LID:
--> --> for urn:nasa:pds:context:investigation:mission.new_horizons_kem1 => "New Horizons Kuiper Belt Extended Mission"
--> --> for urn:nasa:pds:context:instrument_host:spacecraft.nh => "New Horizons"
--> For the Reference_List entry for urn:nasa:pds:nh_lorri:kem1_cal::1.0, please add a comment mentioning that only resolved images between the XYZ dates were used.
--> If the Porter et al (2024b) paper describes how this albedo map was produced, please include it as a reference.
--> For the File_Area_Ancillary.Header, the <description> mentions Hapke parameters are provided in the header.  If possible please put these into the PDS4 label.

file: 'arrokoth_porter_2024.lblx'
--> Context_Area.* Context name mismatch.  Please update the following <name> for the LID:
--> --> for urn:nasa:pds:context:investigation:mission.new_horizons_kem1 => "New Horizons Kuiper Belt Extended Mission"
--> --> for urn:nasa:pds:context:instrument_host:spacecraft.nh => "New Horizons"
--> --> for urn:nasa:pds:context:instrument:nh.lorri => "LOng Range Reconnaissance Imager"
--> Please update the Reference_List entry's <description> for urn:nasa:pds:nh_derived:arrokoth_shapemodel_porter2024:porteretal2024b to say "Pre-print paper Porter et al. (2024b) ..."
--> --> If this paper is published before archiving, please further update the <description> to include the DOI for the published paper, and also add an <external_reference> to the published paper Porter et al. (2024b).
--> For the Reference_List entry for urn:nasa:pds:nh_lorri:kem1_cal::1.0, please add a comment mentioning that only resolved images between the XYZ dates were used.
--> Please add to the File_Area_Ancillary.File.comment, a warning to the user that may be trying to calculate volume using the shape model of the two lobes overlap issue mentioned by the peer reviewers.
--> Add uncertainty of these angles (7 digits in file)
--> Indicate the unit of angles (= deg) defining IAU rotational parameters.

file: 'porteretal2024b.lblx'
--> In the Identification_Area.Citation_Information.description and Document.description, please mention that this is a pre-print of Porter et al. (2024b).
--> Should include a DOI external_reference to the published paper in the Reference_List if it is published.  If added, please also add a <description> stating that this is the published version of the draft paper included in this collection.
--> If appropriate, consider adding the albedo maps to the Reference_List.
--> Context_Area.* Context name mismatch.  Please update the following <name> for the LID:
--> --> for urn:nasa:pds:context:instrument_host:spacecraft.nh => "New Horizons"
--> Suggest to add to the Context_Area the LORRI instrument if deemed appropriate.

file: 'porteretal2024b.pdf'
--> Summarize fitted Hapke parameters (except SSA) in a Table (section 3)
--> Add a scale bar to Figure 3.
--> Add a warning to the user that may be trying to calculate volume using the shape model of the overlap issue.