[
  {
    "temp": 360, "freq": -1
  },
  {
    "temp": 380, "freq": 1500000
  },
  {
    "temp": 400, "freq": 1200000
  },
  {
    "temp": 420, "freq": 1000000
  },
  {
    "temp": 440, "freq": 850000
  }
]