This paper presents the analyzed on Earth Centered Inertial (ECI) of Attitude Determination System (ADS) and satellite velocity data of RazakSAT by using analysis method. ADS are one sub-system in satellite as function to control the orientation of satellite relative with inertial references frame. ECI is one of inertial references frame of RazakSAT with three dimension axis. ECI and velocity of satellite data of RazakSAT are analyzed with normality test by using Minitab software. The results show ECI and velocity data of RazakSAT are non-normal distribution, and correlation between ECI and satellite velocity is ellipse shape.