Swiss Ephemeris Test Page

The Swiss Ephemeris is the high precision ephemeris developed by Astrodienst, based on the NASA JPL ephemeris DE431. This page calls the utility swetest which is a simple test interface to the Swiss Ephemeris.

swetest has a large set of complex options which are mainly used to debug the Swiss Ephemeris module and DLL. Klick here to see the list of optional parameters you can enter.

Start date
(d.m.y) -b
steps -n Stepsize -s
Planet selection -p
Output format -f
other options