purpose.json

{
        "name":"satellitesType",
        "children":[
            {  
                "name":"Communications",
                "children":   [  
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":2
                         },
                                     {  
                            "name":"MEO","size":12
                         }
                      ]
                   },
                         {  
                      "name":"Molniya",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":10
                         }
                      ]
                   },
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"GEO","size":457
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":94
                         },
                                     {  
                            "name":"MEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Polar",
                      "children":         [  
                                     {  
                            "name":"LEO","size":129
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":37
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Earth Observation",
                "children":   [  
                         {  
                      "name":"Elliptical",
                      "children":         [  
                                     {  
                            "name":"LEO","size":4
                         }
                      ]
                   },
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":7
                         }
                      ]
                   },
                         {  
                      "name":"Molniya",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":5
                         }
                      ]
                   },
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":3
                         },
                                     {  
                            "name":"GEO","size":40
                         },
                                     {  
                            "name":"LEO","size":2
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":113
                         }
                      ]
                   },
                         {  
                      "name":"Polar",
                      "children":         [  
                                     {  
                            "name":"LEO","size":17
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":405
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Earth Science",
                "children":   [  
                         {  
                      "name":"Elliptical",
                      "children":         [  
                                     {  
                            "name":"LEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":12
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":10
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Navigation",
                "children":   [  
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"GEO","size":24
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"MEO","size":84
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Space Observation",
                "children":   [  
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"GEO","size":4
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":4
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Space Science",
                "children":   [  
                         {  
                      "name":"Cislunar",
                      "children":         [  
                                     {  
                            "name":"LEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Deep Highly Eccentric",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":9
                         }
                      ]
                   },
                         {  
                      "name":"Elliptical",
                      "children":         [  
                                     {  
                            "name":"LEO","size":2
                         }
                      ]
                   },
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":2
                         }
                      ]
                   },
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":9
                         },
                                     {  
                            "name":"GEO","size":1
                         },
                                     {  
                            "name":"LEO","size":2
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":14
                         }
                      ]
                   },
                         {  
                      "name":"Polar",
                      "children":         [  
                                     {  
                            "name":"LEO","size":3
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":23
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Technology Demonstration",
                "children":   [  
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":1
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":6
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":6
                         }
                      ]
                   }
                ]
             },
             {  
                "name":"Technology Development",
                "children":   [  
                         {  
                      "name":"Elliptical",
                      "children":         [  
                                     {  
                            "name":"LEO","size":2
                         }
                      ]
                   },
                         {  
                      "name":"Equatorial",
                      "children":         [  
                                     {  
                            "name":"LEO","size":7
                         }
                      ]
                   },
                         {  
                      "name":"Molniya",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":1
                         }
                      ]
                   },
                         {  
                      "name":"None",
                      "children":         [  
                                     {  
                            "name":"Elliptical","size":2
                         },
                                     {  
                            "name":"GEO","size":5
                         },
                                     {  
                            "name":"LEO","size":3
                         }
                      ]
                   },
                         {  
                      "name":"Non-Polar Inclined",
                      "children":         [  
                                     {  
                            "name":"LEO","size":34
                         }
                      ]
                   },
                         {  
                      "name":"Polar",
                      "children":         [  
                                     {  
                            "name":"LEO","size":18
                         }
                      ]
                   },
                         {  
                      "name":"Sun-Synchronous",
                      "children":         [  
                                     {  
                            "name":"LEO","size":108
                         }
                      ]
                   }
                ]
             }
        ]
}