The program to interpret JPL Ephemerides, can be downloaded here:
- EphView_1705.zip (12.10 Mb)
See included file Readme.txt for the description (little out-dated, sorry...)
New command-line version available in Eval module (EvalSwEph.dll) ...
- EphView_121229_Source.zip (1.8 Mb)
The source is only for a reference, and is probably outdated.
The source is for Delphi 5, it may possibly compile in Delphi 7,
but surelly it will not compile in Delphi2007 or newer versions of Delphi...
So the source is included rather for a reference. If you need to update the program,
ask me. If you like to compile the program yourself, try it. If something
is not included, ask me and I will send it to you...
(The source is not exactly complete, there are missing tool-kits like JPEG library,
PNG library, UNZIP library etc...)
- Additional ephemerides (included is only 1800-2100) files can be downloaded from NASA/JPL:
Currently, the preffered file, spanning more than years -2000 .. +3000 (which date-range is a limit of
EphView program) is
lnxm3000p3000.422 (531 Mb)
To install the file into EphView program, add it to EphView.ini file in section [JplFiles]
EphView should auto-detect Linux/Windows or Unix/SunOS versions of ephemerides files...
It also supports Swiss ephemerides for asteroids, but these are not included here.
Download only files with extension 406 or 405 or 422... Each file spans 300 years from
the date specified in its name. Only unxp1800.406 is included in my distribution...
(Complete DE406 and DE405 ephemerides are some 250 Mb of data...)
DE405 is more precise, but spans only 1500..2100.
DE406 is less precise, but spans -3000 .. +3000
DE422 is most precise and spans -3000 .. +3000, but is a quite large file...
Note, that EphView program is limited to the range -2000 .. +3000.
The BC years are wrapped arround 5000, so the year 4998 = -2 (if having year 0 in center) or 3 BC in "classical" terminology ...
Gravity simulator - calculate planet positions and makes binary ephemerides files.