If you have to use steel stakes, a poor method to anchor. Cut them atleast24-28" long, weld a 5/8" nut on top, to use a vice grip for removal when frozen. A high Desert spear is far superior to a steel stake, it offers nearly 360 degrees of swivel action, a stake it can only go round and round. This will give the trapped coyote an easy pump out, if it fails to swivel.
The HD Spears have so much holding power, you can go with a much shorter cable, than a regular earth anchor.