Compressed Swiss Ephemeris planet and main asteroid files
In the public Swiss Ephemeris github repository folder ephehttps://github.com/aloistr/swisseph/tree/master/ephe
or from Alois' public Dropbox area in folder 'ephe' with this link
https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0Swiss Ephemeris source code
In the public Swiss Ephemeris Github repository https://github.com/aloistr/swissephThere is also detailed download information, which is always the most up-to-date.
Swiss Ephemeris Documentation
in the public Swiss Ephemeris Github repository folder doc https://github.com/aloistr/swisseph/tree/master/docSwiss Ephemeris for Windows
in the public Swiss Ephemeris github repository folder windows https://github.com/aloistr/swisseph containing sweph.zip The complete Swiss Ephemeris package for Windows (32bit), except the ephemeris data files. See online documentation at https://www.astro.com/swisseph or in the doc directory for more details. Small sample programs and build-projects are included for - Visual C++ .net 2003 - Visual Basic 5.0 - Delphi 32-bit Note: Visual Basic files may not have been updated and tested, as we currently do not possess a working copy of VB at Astrodienst. swephzip.txt overview of content of the sweph.zip package folder vb: declarations for 32-bit and 64-bit Visual Basic folder programs: A directory containing sample and utility programs for Windows: swetest.exe: executable Swiss Ephemeris program. This is a 32-bit Console mode application. To get information about the many features of this program, run swetest -? > out.txt and print the file out.txt, or view it with your text editor. This is just a sample to demonstrate the precision of the ephemeris, and to show the typical use of a few calls.
JPL files
now directly from jpl, see https://www.astro.com/swisseph-download/jplfiles/ or from Alois Treindl's public Dropbox area in folder 'jpl binary files' with this link https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0md5-keys 1ef6191b614b2b854adae8675b1b981f de200.eph 1ef768440cc1617b6c8ad27a9a788135 de406e.eph fad0f432ae18c330f9e14915fbf8960a de431.eph a7b2a5b8b2ebed52ea4da2304958053b de441.eph
Asteroid files for all available numbered asteroids (more than 620'000)
Each file covers 600 years, from 1500 - 2099. They are organized in folders of 1000 files each, available in Alois' public Dropbox area in folder 'all_ast' with this link: https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0 The total volume was 29 Gb in September 2023. Ther simplest way to download a binary file from Dropbox is with the curl utility program, which exists on Mac, Linux and Windows 10 pre-installed. curl is used from a command window. Example: Download short (600 year) ephemeris file for asteroid #3768. The file name will be se03768s.se1 and it will be in folder all_ast/ast3, where files foir asteroids 3000-3999 are kept. curl -O -J -L "https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h/all_ast/ast3/se03768s.se1?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0" For asteroids with number 100'000 or higher the file names begin with 's', not with 'se'.Asteroid files for all available named asteroids (more than 24'000)
Each file covers the long range of 6000 years, from 3000 BCE to 2999 CE. available in Alois' public Dropbox area in folder 'long_ast' with this link https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0 The total volume was 11 Gb in September 2023. Example: download long (6000 year) ephemeris file for asteroid #3768. The file name will be se03768.se1 and it will be in folder long_ast/ast3, where files for asteroids in range 3000-3999 are kept. curl -O -J -L "https://www.dropbox.com/scl/fo/y3naz62gy6f6qfrhquu7u/h/long_ast/ast3/se03768.se1?rlkey=ejltdhb262zglm7eo6yfj2940&dl=0" For asteroids with number 100'000 or higher the file names begin with 's', not with 'se'.How to organize Ephemeris files so that SwissEph finds them
Swissephe code uses an internal swed.ephepath for the directory names where it looks for its data files. It defaults to \sweph\ephe on Windows and to ".:/users/ephe2/:/users/ephe/" on Linux or other Unix-like systems like Android or Mac OS-X. The characters ; in Windows and ; or : in Linux serve as path separators. In the default setting on Linux, the three directories . , /users/ephe and /users/ephe2 are searched when Swiss Ephemeris looks for a file. The programmer can call the function swe_set_ephe_path() to set the ephepath variable, and may include path separators. The user of a program can also set an evironment variable which override the builtin default. The compressed planetary ephemeris files like sepl*.se1, sem*.se1 and seas*.se1 must be directly in one of the path elements. Asteroid files must be in subdirectories named astN like ast0, ast1, ... ast623, where N is the asteroid number divided by 1000. The folders all_ast and long_ast are only used inside the Dropbox area to organize the files. Once downloaded, the astN directory must be placed directly in one of the elements of ephepath. Short asteroid files and long asteroid filese differ by an s in the file name, like se1001.ses and se1001s.se1. They can be merged into the same astN directory, in this case ast1. Astrodienst keeps them traditionally separate in /ephe and /ephe2, but that distinction is not technically necessary.