[
  {
    "b": "1/10",
    "a_error": "1",
    "b_residual": "1/200"
  },
  {
    "b": "1/100",
    "a_error": "1",
    "b_residual": "1/2000"
  },
  {
    "b": "1/1000",
    "a_error": "1",
    "b_residual": "1/20000"
  },
  {
    "b": "1/10000",
    "a_error": "1",
    "b_residual": "1/200000"
  },
  {
    "b": "1/100000",
    "a_error": "1",
    "b_residual": "1/2000000"
  },
  {
    "b": "1/1000000",
    "a_error": "1",
    "b_residual": "1/20000000"
  },
  {
    "b": "1/10000000",
    "a_error": "1",
    "b_residual": "1/200000000"
  },
  {
    "b": "1/100000000",
    "a_error": "1",
    "b_residual": "1/2000000000"
  },
  {
    "b": "1/1000000000",
    "a_error": "1",
    "b_residual": "1/20000000000"
  }
]