  The Universal Transit Modeller (UTM) is a light-curve simulator for all kinds
of transiting or eclipsing configurations between arbitrary numbers of several
types of objects, which may be stars, planets, planetary moons, and planetary
rings. Applications of UTM to date have been mainly in the generation of
light-curves for the testing of detection algorithms. For the preparation of
such test for the Corot Mission, a special version has been used to generate
multicolour light-curves in Corot's passbands. A separate fitting program, UFIT
(Universal Fitter) is part of the UTM distribution and may be used to derive
best fits to light-curves for any set of continuously variable parameters.
UTM/UFIT is written in IDL code and its source is released in the public domain
under the GNU General Public License.
