Measurements of Top Quark Properties at the Tevatron

The top quark was discovered in 1995 at Fermilab by the D 0 and Cdf collaborations in Run 1. of the Tevatron collider. Being the last remaining and most elusive member of the 3 generation family of quarks predicted by the Standard Model (S M) of particle interactions, its discovery was an extraordinary scientific achievement and a major confirmation of the theory. While the discovery was based on a handful of events corresponding to about 100 pb-1 of integrated luminosity per experiment, the results presented in this talk are based on substantially more data corresponding to as much as 4.3 fb-1 of integrated luminosity from Run II of the Tevatron. The significant increase in statistics in Run 2. allows more precise determinations of previously measured properties (e.g. mass) and first-time determinations of other properties never before measured. We have presented the latest measurements from the Tevatron of various properties of the top quark, both fundamental and those related to production and decay. So far, the observed top quark seems consistent with S M predictions. With the increasing data in the coming year, these measurements will continue improving, allowing the top quark and the S M to be tested more stringently.