Fixed apparent model orientation for CZML

I’m using CZML to create satellite orbits with built in models. It is pretty easy to have the model orient to the direction of travel using velocityReference and #position. However, if I want the satellite to appear fixed in a different orientation (i.e. 45 degrees in the x axis, which should then make the satellite appear to tilt 45 degrees but always in the direction of travel) it then appears to continually rotate around some axis throughout the scenario length. How can I write build the CZML so that the satellite appears fixed when viewing? What would the correct inputs be over time (i.e. latitude, longitude, altitude or rho, theta, phi, etc.) to stop the rotation? Thanks for the help.