\documentstyle[adc,11pt]{article}
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\newcommand{\dmv}{Documentation for the Computer-Readable Version}
\newcommand{\cat}{Lick Northern Proper Motion Program: NPM1 Catalog 

Cross-Identifications and Appendices}
\newcommand{\abbr}{NPM1}
\newcommand{\catref}{Klemola, et al. (1994)}
\newcommand{\pcatref}{Arnold R. Klemola, Robert B. Hanson, and Burton F. Jones}
\newcommand{\docnum}{NSSDC/WDC-A-R\&S 94-14}
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\begin{document}
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\title{\cat}
\author{(\pcatref)}
\docauthor{Robert B. Hanson and Arnold R. Klemola \linebreak {\it (UCO/Lick
Observatory, University of California, Santa Cruz)}}
\docno{\docnum}
\date{}
\date{November 1994}
\maketitle

\begin{abstract}
 
The {\it NPM1 Catalog} provides absolute proper motions, positions, and 
photographic photometry, measured in the Lick Northern Proper Motion (NPM) 
program, for some 149,000 stars with $8 \leq B \leq 18$ mag. covering the sky
outside the Milky Way north of declination $-23^\circ$.  
This catalog, the {\it NPM1 Catalog Cross-Identifications and 
Appendices} consists of two parts: the NPM1 Cross-Identifications and the NPM1 
Appendices.
The {NPM1 Cross-Identifications} file provides some 42,000 
cross-identifications between the {\it NPM1 Catalog} numbers and star names,
stellar type classifications, and publication references.  These additional
data, extracted from the Lick {\it Input Catalog of Special Stars}, facilitate
many practical uses of the {\it NPM1 Catalog}.  Six { Appendices to the NPM1
Catalog} provide references, footnotes, and other useful information.
     
\end{abstract}

\section{Introduction and Source Reference}

{\bf A copy of this document should accompany any further distribution of 
these files.}

\subsection{Introduction}

The Lick Northern Proper Motion (NPM) program is a mammoth 
photographic survey of the northern sky, whose goal is to measure absolute 
proper motions, on an inertial system defined by some 50,000 faint galaxies, 
for some 300,000 stars over a blue apparent magnitude range from 8 to 18,
covering the northern two-thirds of the sky.  A full description of the NPM
program is given by Klemola, Jones, and Hanson (1987).

The NPM survey is based on photographs taken with the Lick 51 cm (20 in)
Carnegie double astrograph.  There are 1,246 $6^\circ \times  6^\circ$ fields 
in the NPM survey (from $+90^\circ$ to $-23^\circ$).  First-epoch photography 
began in 1947; second-epoch photography was completed in 1988.  Measurements 
and reductions for proper motions, positions, and photometry in the sky outside
the Milky Way (Part~I of the NPM program) began in 1975 and were completed in 
1992.

The resulting catalog, the {\it NPM1 Catalog}, containing some 149,000 stars
from 899 of the 1,246 NPM fields, was deposited with the Astronomical Data
Center in 1993, as ADC catalog number A1199 (Klemola, Hanson, and Jones 1993).
Documentation for the {\it NPM1 Catalog} is given by Hanson (1993). 
A more detailed discussion of the {\it NPM1 Catalog} is being prepared for 
publication (Klemola, Hanson, and Jones 1995).

Included in the {\it NPM Catalog} are some 94,000 anonymous stars for 
astrometric and galactic studies, some 23,000 positional reference stars,
and some 35,000 ``special stars'' chosen from the astronomical literature.
(These numbers total more than 149,000 due to overlaps among categories.)
The {\it NPM Catalog} will serve as a valuable database or many applications 
-- astrometric (correction to precession, comparison with Hipparcos), galactic
(stellar kinematics, galactic rotation), and statistical (luminosity 
calibrations).

The {\it NPM1 Catalog} designates each star with a numerical ``name'' in a 
zone-catalog format (e.g., NPM1+89.0001).  The only star identifications
given in the {\it NPM1 Catalog} are the AGK3 (northern zones) or SAO (southern
zones) numbers for the positional reference stars.  Many useful applications 
of the NPM1 data will require knowledge of the star names, stellar type 
classifications, and publication references for the NPM1 stars.

The NPM1 Catalog Cross-Identifications file provides this information.
For each NPM1 special star, this file connects the {\it NPM1 Catalog} ``name''
to the original publication references used in construction of the Lick {\it 
Input Catalog of Special Stars (ICSS)}, which is the database for selection 
and identification of special stars for the NPM program.  Thus, the NPM1
Catalog Cross-Identifications file allows the user of the {\it NPM1 Catalog}
to relate it to star lists and catalogs from the astronomical literature.  
Beyond merely identifying the NPM1 stars, this file allows the user to perform
such tasks as selecting subsets from the {\it NPM1 Catalog} containing stars of 
a particular classification type, or from a particular literature reference
or author.  This will greatly expand the utility of the {\it NPM1 Catalog}.

Accompanying the NPM1 Catalog Cross-Identifications file are six 
Appendices to the NPM1 Catalog, providing explanations
of the NPM1 stellar type designations, publication references, footnotes, and
other useful information.

\subsection{Source Reference}

\begin{references}

\item ``Lick Northern Proper Motion Program: NPM1 Catalog'', 1993,
Klemola, A.R., Hanson, R.B., and Jones, B.F., 
National Space Science Data Center -- Astronomical Data Center
Catalog No. A1199.

\end{references} 

\section{Structure and Content of the NPM1 Catalog Cross-Identifi-\break
cations and Appendices.}

\subsection{File Structure}

The NPM1 Catalog Cross-Identifications file as distributed here is in a single
fixed block file.  It contains 41,858 records, each 80 bytes long.  It is the 
concatenation of 114 NPM1 zone cross-identification files, each covering 
$1^\circ$ of declination.  As in the {\it NPM1 Catalog}, the zones are ordered
from north to south ($+89^\circ$ through $+00^\circ$, $-00^\circ$ through 
$-23^\circ$).  Unlike the {\it NPM1 Catalog}, there may be more than one entry
per star, reflecting the fact that the Lick {\it ICSS} may give more than one 
publication source per star.  

Six Appendices to the NPM1 Catalog are also distributed here, in seven
files.  Each is a single variable block file, up to 100 bytes long.  
{\it Appendix 1} contains 113 records, giving a translation of the NPM1 star
class codes.
{\it Appendix 2} contains 69 records, giving a statistical summary of the NPM1
star classes.
{\it Appendix 3} contains 649 records, relating publication reference numbers 
in the {\it NPM1 Catalog Cross-Identifications} to the actual literature 
references.
{\it Appendix 4} is presented as two files:  {\it (a)} an AAS LaTex file 
containing 3,321 records, giving the full list of literature references for the
Lick {\it ICSS}; and {\it (b)} a plain ascii file, containing 2,222 records, 
giving the same information.
{\it Appendix 5} contains 737 records, giving the Footnotes to the {\it NPM1 
Catalog}.
{\it Appendix 6} contains 18 records, giving a list of stars to be rejected 
from the {\it NPM1 Catalog}.

This information is sufficient for a user to describe the indigenous 
characteristics of the machine-readable version of the {\it NPM1 Catalog 
Cross-Identifications and Appendices} to a computer.

\subsection{Content}

The { NPM1 Catalog Cross-Identifications} file gives identifications, 
stellar class codes, and publication references for some 35,000 Lick {\it ICSS}
``special'' stars in the {\it NPM1 Catalog}.  Large numbers of all classes
of stars have been gathered by Klemola from the astronomical literature,
to form the {\it ICSS}.  For each {\it ICSS} star in the {\it NPM1
Catalog}, data were extracted from the {\it ICSS} to form that star's entry
in the { NPM1 Catalog Cross-identifications} file.

Each star's entry begins with its NPM1 ``name'', containing the NPM1 
declination zone and the star's running number within its zone (e.g., 
+89.0001).  This is followed by the star name from the {\it ICSS} literature
source (improvised where necessary), 
a three-letter code abbreviating the stellar type classification 
({\it Appendices 1 and 2} explain these codes), and the {\it ICSS} publication 
reference number ({\it Appendices 3 and 4}).  
A one-digit code then follows, noting
an identification comment, footnote, or rejection note.  Four columns of
photometry information give magnitudes and colors from the literature, where 
available.  Finally, the {\it ICSS} literature reference is given in a highly
abbreviated form (see {\it Appendix 3} description below).

{\it Appendix 1} gives a translation of the 113 three-letter class codes used 
in the { NPM1 Catalog Cross-Identifications} file.  The codes are listed in
alphabetical order.  These class codes are usually based on information given 
by the authors of the publications from which the stars were chosen.  For many
surveys these classes are only provisional, awaiting improved data for more
definitive stellar classifications.  The variable star class codes are those
in GCVS3 and its three supplements (REF 0001), and the codes in the three
supplements to GCVS4 (REFS 0614, 0615, 0616).

{\it Appendix 2} is a text file giving 
a condensed array of class codes according to natural 
groupings of the objects.  Counts of stars in the {\it NPM1 Catalog} are listed
for each class.  For variable stars, the number in each class in the GCVS4 
are also listed, for comparison with the NPM1 counts.

{\it Appendix 3} relates the {\it ICSS} publication reference numbers given in
the { NPM1 Catalog Cross-Identifications} file to the actual literature 
references.  After the null reference (0000) for reject stars, the entries are
sorted alphabetically, by the surname of the
first author.  The first column of each entry gives the {\it ICSS} number.
Then follows the abbreviated publication reference.  Here, a + sign following 
the author denotes multiple authorship.  An asterisk after the year of 
publication means this {\it ICSS} source includes additional references 
(see {\it Appendix 4}).  The next column gives the total number of stars from 
this reference in the {\it NPM1 Catalog}.  Finally, the three-letter codes
for the classes of objects found in this reference are also listed.  

Generally, {\it Appendix 3} has one entry per literature reference.  Three 
exceptions to this rule are the variable star catalogs:  REF 0001 (6 lines), 
REF 0614 (2 lines), and REF 0615 (2 lines).

It is important to note that the Lick {\it ICSS} includes many more publication 
references than actually appear in the { NPM1 Catalog Cross-Identifications} 
file.
There are three reasons for this:  (1)~The {\it ICSS} covers the whole northern
sky, including the Milky Way, which forms the future Part~II of the NPM program 
(NPM2).
(2)~Many stars were added to the {\it ICSS} after their particular declination
zones were already measured, i.e., too late for inclusion in NPM1.
(3)~Any {\it ICSS} stars failing to survive the NPM1 survey, measurement, or 
reduction stages do not appear in the {\it NPM1 Catalog}.

{\it Appendix 4} gives a full listing of all {\it ICSS} publication references.
These are in numerical order by {\it ICSS} reference number.  There are 641 
references plus the null reference (0000) for reject stars.  Some {\it ICSS}
reference numbers correspond to more than one literature reference, e.g. a 
series of papers.  Several publications provide no additional stars but contain
finding charts for other references. 
{\it Appendix 4} is presented in two versions:  {\it (a)} in AAS LaTex format,
and {\it (b)} in ascii format.

{\it Appendix 5} provides 737 Footnotes to the {\it NPM1 Catalog}.  These stars
are flagged by a one-digit code in the { NPM1 Catalog Cross-Identifications}.
Each footnote entry consists of the NPM1 ``name'', followed by the note itself.
The entries are ordered in the same manner as the {\it NPM1 Catalog}.

{\it Appendix 6} lists 18 stars which must be rejected from the {\it NPM1 
Catalog}, for reasons identified during the compilation of the { NPM1
Catalog Cross-Identifications}.  (These include survey errors, severe image 
blending, image defects, and other uncorrectable errors.)  These stars
are flagged by a one-digit code in the { NPM1 Catalog Cross-Identifications}
file.
Each entry in {\it Appendix 6} consists of the NPM1 ``name'', followed by the 
reason for rejection.  The entries are ordered in the same manner as the 
{\it NPM1 Catalog}.  

\subsection{File Format}

The ``readme'' file distributed with the {\it NPM1 Catalog Cross-Identifications
and Appendices} gives a byte-by-byte description of the contents of each file,
except for {\it Appendices 2 and 4a} which are text files.

\section{Notes}

The {\it NPM1 Catalog Cross-Identifications and Appendices} are designed to be 
used in conjunction with the {\it NPM1 Catalog}.  For example:

\noindent
(1)~To find the identity (and other information) for a particular NPM1
``special'' star, use the NPM1 ``name'' (e.g. +89.0001) to locate that star's
entry (or entries) in the { NPM1 Catalog Cross-Identifications} file.

\noindent
(2)~To find NPM1 stars of a given stellar type or classification, first use 
{\it Appendix 1} to find the appropriate three-letter NPM1 class code.  
Then search the { NPM1 Catalog Cross-Identifications} file (column 3)
to generate a list of NPM1 ``names''.

\noindent
(3)~To find NPM1 stars from a particular literature reference, or from a 
particular author's paper(s), first use {\it Appendix 3} to find the {\it ICSS}
reference number(s).  Then search the { NPM1 Catalog Cross-Identifications}
file (column 4) to generate a list of NPM1 ``names''.

\section{Acknowledgments}

The Authors thank the National Science Foundation for its continued support of
the Lick NPM program.  Current work is supported by grant AST 92-18084.
We also thank Dr.~Paul~Kuin of the Astronomical Data Center for his invaluable
help in preparing the NPM1 data files and documentation for distribution.

\section{References}
\begin{references}

\item Hanson, R.B., 1993, National Space Science Data Center Document No.
      NSSDC/WDC-A-R\&S 93-41
\item Klemola, A.R., Jones, B.F., and Hanson, R.B. 1987, AJ, 94, 501
\item Klemola, A.R., Hanson, R.B., and Jones, B.F. 1993, National Space Science
      Data Center -- Astronomical Data Center Catalog No. A1199
\item Klemola, A.R., Hanson, R.B., and Jones, B.F. 1995, AJ (in preparation)

\end{references}
\end{document}

