Since these are now properties, we need to document them differently.  This property should be changed to:
```
/**
 * Gets the radii of the ellipsoid.
 * @memberof Ellipsoid.prototype
 * @type {Cartesian3}
 */
```
It's important to note that you need the `.prototype` on member of, or our version of JSDoc doesn't do the right thing.  Also, read-only properties should always start with "Gets" and read/write properties should start with "Gets or sets".  This makes it easy to tell if the property is writable.  Finally, you need to use `@type` instead of return.

I'm not going to make this comment anywhere else, so just go in and update all of the new properties to match.