COMET2_NUC
==========

o Remove last column (rotation periods). 

o Get the rotation period data from Nalin Samarasinha.  Ideally, these
  should be in this same data set (which should be maintained yearly as
  an edited collection of published properties). 

o Comet Machholz is definitely spelled incorrectly at least once.

o Correct typos noted by M. Belton (appended below).

o Correct typos noted by T. Farnham (appended below).

o Make PDS standards corrections as noted by Steve Adams (appended below).

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Mike Belton's List of Typos
---------------------------

4)files with small problems:

In "Properties of Comet Nuclei" 
	- tables 1 and 2 are called "Physical properties of comet nuclei"
not 	"Radii of Comet Nuclei" as you have written
	- Also you have written "probably" when the reference has "probable"

In "Support_archives.cat" 
	-mission start and stop dates seem odd
	-Label revision code has something about "comet polarimetry" which
seems unrelated

In "dataset.cat" 

	-in the 'terse'description the data is listed as Sizes, shapes,
albedos and colors. But "periods" are at present also included
	- I don't know what "EAR-C-COMPIL-5-COMET...." means
	-Is there a problem with the data-set-ID, the Citation.desc, and the
Reference-Key-ID all being different. Why not the same?

In "albedos.lbl"

	-under column 2 you say that D = defunct means destroyed. Not so,
exhausted or disintegrated would be better. This appears in several of 	the
files:e.g colors.tab,comet.lbl,notes.lbl,shape_size.lbl
	-when errors are not given shouldn't the relevant column show a .99?
In most cases you put 0., which be misinterpreted.
	- in 22P shouldn't the entry be 0.042 not 0.42
	- in 109P shouldn't the reference be Lamy et al (2004)

In "colors.lbl"

	- Under "Description" replace BiV with B-V

In "Colors.tab"

	- Machholtz is spelt incorrectly (twice)

In "Comet.lbl"

	-under column 8 description "following" is incorrectly spelt.
	-delete column 24? See issue above.

In "comet.tab"

	- The names Sola, Pajdusakova, Vavrova, Vaisala and Cernes are not
spelled correctly.
	-in 19P 2.62 instead of 2.2
	-in SW1 14(32.3) is given as 14
	-in SW3 entry (1.3) is entered as 0
	-in Gehrals 3 you have << instead of <
	-in 117P something missing in the parentheses
	-in 1P you chose the wrong entry
	- what are the "R"'s in the entries for 109P and C/I-A-A?

In "Extinct.lbl"

	- probable not probably
	- in Object column 9 should read "visual geometric albedo"

In "Notes.tab"

	- the first two entries are incorrect
	- the format seems odd (at least on my printer)

In "Reference.lbl"

	- change "blenk' to "blank"

In "reference_list.tab"

	- Many typos - e.g. Schleicher,liike,Sciience,rainier,abd,Astrphys,
rickman
	- don't really approve of "private communication" references in an
archive	

In "Shape_and_size.lbl"

	- don't use "length" and "width'. Use "semi-major axis A",
"semi-major 	axis B", and "semi-major axis C"

In "Shape_and_size.tab"

	- 0.08 instead of 0.09

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Tony Farnham's List of Typos
----------------------------
In file COMET.LBL

In description for column 4, it says "these are provided only for
   non-periodic comets."  It should read "these are provided only for
   unnumbered comets."
In description for column 12, "following" is misspelled
In description for column 13, "radius" is misspelled
In description for column 19, "...radius in from a variety of source ..."  
   should be "radius from a variety of sources ..."
In description for column 20, "recalculated" is misspelled

In NOTES.LBL file
In description for column 5, "If not object name..." 
   should be  "If an object name..." 

In ALBEDOS.LBL

In PRODUCT_NAME,  "ALBEDOS" is misspelled

In ALBEDOS.TAB
Comet Kopff is listed with an albedo 0.42.  Should this be 0.042?

In COLORS.LBL

In File description, "BiV" should be "B-V"

In file EXTINCT.LBL

in description of column 1, "...assigned as asteroid number..."
   should be "... assigned an asteroid number..."

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Steve Adam's Notes on Standards
-------------------------------
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