 In addition to the standard guidance control systems used on "Genesis I", it had reaction wheel assemblies and a precision measurement system, which were used to affect the spacecraft's rotation rate and angular momentum without expending fuel.It carried 22 cameras (nine more than the 13 on "Genesis I") for photographing and filming cargo and ship conditions both inside and out.Some of these were on articulated platforms, and one wireless camera that is capable of additional exterior imaging.