Installing/Updating OCCULT

OCCULT is a software package that predicts Lunar Occultations; prepares reports of Lunar Occultation observations, and reduces the observations; predicts solar & lunar eclipses, and transits, and provides general planetary predictions. It also computes predictions of occultations of stars by asteroids, and by the planets.


The OCCULT software is distributed as five self-extracting ZIP files.
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To install OCCULT for the first time, you need to download:

INSTALL.EXE
OCCULT1.EXE
OCCULT2.EXE
OCCULT3.EXE
OCCULT4.EXE

To compute predictions of occultations by asteroids, you also need to download 
OCCULT5.EXE
You do not need this file if you do not want to compute occultations by asteriods

You can download these files to any directory. When you have downloaded, run INSTALL.EXE to install OCCULT on the desired drive. OCCULT is installed in a root directory called \OCCULT. Full installation requires about 14Mb drive space; If OCCULT5 is not installed, drive space requirement is around 7.4MB.


The command to run the program is
   \OCCULT\OCCULT

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To update an existing version of OCCULT, you need to download:

INSTALL.EXE
OCCULT2.EXE
OCCULT3.EXE

You do not need OCCULT4.EXE. It contains the file WATTS.DAT, which is not subject to change.
You do not need OCCULT5.EXE. It contains the files for the PPM catalogue for use with predicting occultations by asteroids. THese files are not subject to change.

OCCULT1.EXE contains the files:

	Defaults.DAT, DeltaT.DAT, Multisit.DAT, Sites.DAT, StarCat.DAT, Cities.BIG, 		Cities.Med, and Cities.SML.

These files will usually have been edited by the user to customize for their location. Updating OCCULT with the OCCULT.EXE file will overwite these files, with a loss of any edited information.

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IMPORTANT NOTE:

For users updating from a version of OCCULT before 4.20, please read the readme.dat file located in the \OCCULT directory. THis file is included with the OCCULT2.EXE file. Apart from advising of certain files that can be deleted, it advises of changes to the STARCAT.DAT file which MUST be made.

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