CK kernels contain spacecraft orientation information, correlated to spacecraft clock times. The information in these files, in combination with frame and instrument data can determine exactly what a Spacecraft’s camera and other instruments were pointing at and when.

Because these files are correlated to the Spacecraft’s internal clock time, a SCLK kernel is required to correlate the observations back to a relevant solar system time.

More information can be found by downloading the CK Tutorial:

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