Input (grade 12): The data revealed no atmosphere to a surface pressure of 10 - 20 nanobars; if it exists, it would have to be far thinner than that of Triton or Pluto.
Output (grade 6): The data revealed no atmosphere to a surface pressure of 0.03 microbars; if it exists, it would have to be far thinner than that of Triton or Pluto.