{
  "_id": "4.57",
  "name": "Product definition template 4.57 - analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents based on a distribution function",
  "values": [
    {
      "CONTENTS": "Repeat the following 5 octets for the number of function parameters (n = 1,Np), if Np > 0",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Parameter category",
      "_id": "10",
      "note": "4.1",
      "status": "Operational"
    },
    {
      "CONTENTS": "Parameter number",
      "_id": "11",
      "note": "4.2",
      "status": "Operational"
    },
    {
      "CONTENTS": "Atmospheric chemical constituent type",
      "_id": "12-13",
      "note": "4.230",
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of modes (N) of distribution",
      "_id": "14-15",
      "note": "(see Note 1)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Mode number (l)",
      "_id": "16-17",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of distribution function",
      "_id": "18-19",
      "note": "4.240",
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of following function parameters (Np), defined by type given in octets 18-19 (Type of distribution function)",
      "_id": "20",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "List of scale factor of fixed distribution function parameter (p1-pNp), defined by type of distribution in octets 18-19",
      "_id": "21+5(n-1)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of generating process",
      "_id": "21+5Np",
      "note": "4.3",
      "status": "Operational"
    },
    {
      "CONTENTS": "List of scaled value of fixed distribution function parameter (p1-pNp), defined by type of distribution in octets 18-19",
      "_id": "(22+5(n-1))-(25+5(n-1))",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Background generating process identifier (defined by originating centre)",
      "_id": "22+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Analysis or forecast generating process identifier (defined by originating centre)",
      "_id": "23+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hours of observational data cut-off after reference time",
      "_id": "(24+5Np)-(25+5Np)",
      "note": "(see Note 2)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Minutes of observational data cut-off after reference time",
      "_id": "26+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time range",
      "_id": "27+5Np",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Forecast time in units defined by the previous octet",
      "_id": "(28+5Np)-(31+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of first fixed surface",
      "_id": "32+5Np",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of first fixed surface",
      "_id": "33+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of first fixed surface",
      "_id": "(34+5Np)-(37+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of second fixed surface",
      "_id": "38+5Np",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of second fixed surface",
      "_id": "39+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of second fixed surface",
      "_id": "(40+5Np)-(43+5Np)",
      "note": null,
      "status": "Operational"
    }
  ]
}