{
  "_id": "015089",
  "classname": "Physical/chemical constituents",
  "classno": "15",
  "datawidthbits": "15",
  "name": "Zenith path delay due to neutral hydrostatic atmosphere (see Note 13)",
  "note": "(13) 015089 is the contribution of the (almost) dry atmosphere to the zenith path delay as expressed by the hydrostatic equation.",
  "refvalue": "0",
  "scale": "4",
  "status": "Operational",
  "unit": "m"
}