iss.json

{
     "version": "1.0",
     "name": "ISS",

     "items" :
     [
        {
          "name" : "ISS",
          "center" : "Earth",
          "trajectoryFrame" : "EquatorJ2000",
          "trajectory" :
          {
              "type" : "TLE",
              "name" : "ISS (ZARYA)",
              "line1" : "1 25544U 98067A   11042.40620627  .00065760  00000-0  48638-3 0  8024",
              "line2" : "2 25544  51.6440  85.8998 0004217 288.1282 194.3117 15.72311137701100",
              "source" : "http://celestrak.com/NORAD/elements/visual.txt"
          },

          "bodyFrame" :
          {
              "type" : "TwoVector",
              "primaryAxis" : "x",
              "primary" :
              {
                  "type" : "RelativePosition",
                  "observer" : "ISS",
                  "target" : "Earth"
              },
              "secondaryAxis" : "-y",
              "secondary" :
              {
                  "type" : "RelativeVelocity",
                  "observer" : "ISS",
                  "target" : "Earth"
              }
          },

          "geometry" :
          {
              "type" : "Mesh",
              "size" : 0.1,
              "source" : "models/iss.cmod"
          }
        }

    ]
}