Contributed IDL software by Frank Varosi :

			Mail Code 685
			NASA/Goddard Space Flight Center
			Greenbelt MD 20771

			varosi@gsfc.nasa.gov
			301-286-2841


MOSAIC - image processing/mosaicking software package:

	mosaic-install.tar	:	for first time full installation
	mosaic.tar.Z		:	for update of code
	./mosaic/		:	sub-dir with README and *.pro files


OPTICON - optical Lab/instrument control & data acquistion:

	opticon-install.tar	:	for first time full installation
	opticon.tar.Z		:	for update of code
	./opticon/		:	sub-dir with README and *.pro files


MODION - widget for Grotrian diagram modeling of an atom/ion:
	(requires output from TOPBASE to get the energy Levels, etc.)

	modion-install.tar	:	for first time full installation
	modion.tar.Z		:	for update of code
	./modion/		:	sub-dir with README and *.pro files


See the README file in respective subdirectory for more information.
The README files are also included in each installation tar file,
and the following tar file is also included in each installation tar file:

	vlib.tar.Z	:	Varosi's general purpose IDL code library,
				(must get for updates also).

This vlib.tar file creates the file ~/idl/idl_startup.pro
and subdirectory ~/idl/vlib, with further subdirs and *.pro files.
It is assumed that the IDL Astronomy Library has already been installed.

The mosaic-install.tar distribution also includes the tar file:

	vlibm.tar.Z	:	Varosi's general purpose IDL code models,
				(must get for MOSAIC/IDL updates also).

which when untar'ed creates subdir ~/idl/vlibm and further subdirs.


In general, to install the "name" package,
(where name = mosaic, opticon, or modion) for the first time:

	cd
	ftp idlastro.gsfc.nasa.gov
	user: ftp (or anonymous)

	ftp> cd  pub/contrib/varosi
	ftp> bin
	ftp> get name-install.tar
	ftp> quit

	tar xvf name-install.tar	# creates files in new sub-dir.
	cd install.name			# change to newly created sub-dir.
	install_name			# execute install shell script.

Look at and if necessary edit the file idl_setup, then: source idl_setup
defines the alias: mosaic, opticon, or modion.
Alternatively, just use the "setenv IDL_STARTUP" and alias lines from idl_setup
in your own .login or .cshrc files, combining all the aliases.

In general, to upgrade the "name" package:

	cd ~/install.name
	ftp idlastro.gsfc.nasa.gov
	user: ftp (or anonymous)

	ftp> cd  pub/contrib/varosi
	ftp> bin
	ftp> get name.tar.Z
	ftp> get vlib.tar.Z
	ftp> quit
	untar		#script which overwrites old code with new versions.