NULL_0000(a)

1.	root directory

	A.	missing required AAREADME.TXT

	B.	missing ERRATA.TXT

		this file is optional, but required to explain deviations
		from standards (if any)

	C.	all files require a PDS label (i.e., dataset.html).  prob
		best to delete this file from the archive.

	D.	voldesc.cat

		1.	not all catalog files listed in the OBJECT=CATALOG
			object.

		2.	VOLUME_ID = "NULL_0000" and
			VOLUME_SET_ID = "USA_NASA_PDS_NULL_000X"

			Can we select something else instead of "NULL".
			You have another volume in this "set" also labeled
			"NULL_0000".

2.	catalog directory

	A.	missing required CATINFO.TXT

	B.	there are two reference.cat files on this volume, one in
		the catalog directory, the other in the catalog/targets
		directory.  They should be combined.

		scratch the above.  The reference.cat file in the target
		directory really isn't a reference file.  Rename this file
		to something else, so as to not confuse with a "real"
		reference.cat file.

		the "reference.cat" file can be considered a reserved name.


		A test ingestion failed with this file (in the target 
		directory) indicating that a TARGET_NAME was not supplied. 
		However, you do have one, with the value of "REFERENCE".  
		I suspect that this is a related problem to the above 
		discussion.  The TARGET_NAME of REFERENCE will need to be 
		changed to something else.

		TARGET_TYPE is of StdValueType = STATIC.  Value in file is
		invalid.

		I cannot get this file to ingest.  Will have to debug later.
		May be problem with ingestion software, or a problem with
		the file.  Will have to investigate later.

	C.	reference.cat

		1.	reference not in proper format.  delete the
			apostrophies.  PDS uses the AGU format.

3.	data directory

	A.	notes.lbl/notes.tab

		1.	Not sure this is a "correct" usage of a table.
			Label indicates 20 records, but there are really
			only 8 records.  Subsequent lines are continue
			lines of previous.  Can they be placed on a single
			line?

		2.	What is start_byte=6, bytes = 1 supposed to be?
			It is in the file, but not defined.

	B.	colors.lbl/colors.tab

		1.	What is start_byte=5, bytes=1?  In file but not
			defined.

	C.	*.lbl/*.tab

		1.	As above (3.A.2. and 3.B.1.), undefined byte in
			file.

	D.	reference_list.tab

		1.	Unusual, I haven't seen a reference list in a data
			format.  Shouldn't it be in a REFERENCE.CAT file
			instead?  If left in this format, see 3.A.1. above.


4.	index directory

	A.	okay

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