https://arstechnica.com/science/2021...ext-steps-are/
"We have an even better idea of where the rover is than we do of its orientation. Al Chen—who led the Entery, Descent, and Landing team—said the rover touched down about 1.7km from the center of its intended landing area. He noted that Perseverance landed in what he called "a fairly rugged area." Showing the image below, he said that the blue areas were considered acceptable for landing, yellow is iffy, and red presented areas where there was at least a 4 percent chance of dropping the rover onto something unfortunate."
