This code set was created by Jonathan Stelter and Moritz Adam for evaluation of the Magneto-Optic-Trap experiment (F20) of the advanced physics lab courses at the Institute for Phyiscs (Physikalisches Institut) at Heidelberg University. A documentation of the experiment can be found on the web pages of the advanced physics lab. The code set can be used for plotting, fitting and analyzing spectroscopy data of Rubidium obtained through Saturated Laser Absorption Spectroscopy and both loading and release/recapture measurements at an Magneto-Optic Trap (MOT). For the MOT-part an enhanced version of Renato Ferracini Alves' code was used.