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- Floppy Almanac
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- U. S. Naval Observatory
- Nautical Almanac Office
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- Version 2.20.91
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- A few changes have been introduced with this new version of
- the Floppy Almanac, and a few bugs have been chased out.
- Due to incompatibilities in the BIOS routines of different
- brands of machines, there appeared to be no end to the
- problems which were occurring with the assembly language
- routines that did the screen clearing. This problem has
- been solved by the elimination of these routines. The
- Floppy Almanac now has only 3 assembly language routines.
- The rest of the program is entirely in FORTRAN, and the
- screen clearing is done by writing blank lines to the
- screen. It's not as elegant, but it works. A major problem
- in the Navigation section was caused by the disappearance of
- a line of code, causing a random value to be used for the
- parallax in altitude of the Moon. This missing line of code
- has been restored. A couple of minor irritations have been
- removed also. All of the box drawing characters that
- appeared in the tabular output have been removed. This will
- greatly speed printing of output files on dot matrix
- printers. The message stating whether or not the default
- file FA.DFT was read has been eliminated. Finally, the
- cursor size is never changed; it is only turned off and on.
- When the program ends, the cursor is left at the default
- size.
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- The requirements for running this version of the Floppy
- Almanac remain the same as the previous editions: IBM PC or
- clone with 256k RAM running MS DOS 2.0 or higher. There are
- 8 files on this disk. They are:
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- FA91.EXE
- FA.DFT
- STAR1.CAT
- MESSIER.CAT
- RADIO1.CAT
- SAMPLE.TXT
- CATALOG.EXE
- READ.ME
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- The first file in the list is the executable file comprising
- the Floppy Almanac, and is the only necessary file. It is
- executed by simply typing the first four characters, that
- is, FA91 (or fa91) for the 1991 Floppy Almanac. The program
- will then begin execution, and the Floppy Almanac masthead
- will scroll onto the screen followed by the main menu. The
- Floppy Almanac is completely self-contained, and once the
- main menu appears the disk can be removed from the drive;
- no further disk reads are required for standard execution.
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- The other files on the disk are auxiliary files, which are
- not used by most applications. Most of these files relate
- to the optional facility for redefining the star catalog to
- be used by the Floppy Almanac.
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- The file named SAMPLE.TXT is a small sample of a formatted
- star catalog to be used as a model for creating other
- catalogs. The large star catalog, STAR1.CAT, is the FK5
- catalog.
-
- Since the Floppy Almanac is menu- and prompt-driven, the
- novice user can usually "feel" his way around its various
- options and obtain useful information. One can become
- fairly proficient in using the Floppy Almanac simply through
- a series of trial-and-error runs. Nevertheless, there is a
- significant amount of information about how the Floppy
- Almanac works which is not obvious but which is quite
- important for all but the most casual user. This
- information is contained in the paper documentation
- distributed by the National Audiovisual Center with each
- Floppy Almanac disk.
-
- Ordering Information:
- Mail to:
- National Audiovisual Center
- Code FA
- 8700 Edgeworth Drive
- Capitol Heights, MD 20743-3701
-
- Each yearly edition of the Floppy Almanac is $25, and
- includes two MS-DOS diskettes (5.25 and 3.5 inch) and a copy
- of the paper documentation. Please make your check or money
- order payable to the "NATIONAL ARCHIVES TRUST FUND (NAC)."
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- Credit card orders may be placed by calling 1-800-638-1300.
- Please have your MasterCard or VISA account number and
- expiration date handy.
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- A version for IBM mainframes running the VM/CMS operating
- system, and for DEC VAX computers running VMS are also
- available. Write to the National Audiovisual Center at the
- above address for more information.
-
- The Observatory is presently developing a series of software
- packages that will include the functions of Floppy Almanac
- along with the Air, Nautical and Astronomical Almanacs
- presently available in print form only. When these programs
- are complete, a single disk set will be offered through the
- National Audiovisual Center. The anticipated availability
- date is fall 1991.