wrong orbit plot

Hi All,
   I generated a .czml file to track the orbit of the satellite, i checked the actual generated positions (ECEF) and compared it with Orbitron and it is correct. However, when I drag the .czml file to the cesium viewer, it plots a different orbit and it is not the same as the one generated by Orbitron. I cant seem to figure out where the problem lies. Please Help..

I am using Cesium-1.41 with a CENTOS7 Operating System.

Here is my .czml file

[
  {
    "id":"document",
    "name":"simple",
    "version":"1.0",
    "clock":{
      "interval":"2018-01-29T14:50:29.422405Z/2018-01-30T14:50:29.422405Z",
      "currentTime":"2018-01-29T14:50:29.422405Z",
      "multiplier":60,
      "range":"LOOP_STOP",
      "step":"SYSTEM_CLOCK_MULTIPLIER"
    }
  },
  {
    "id":"Satellite/SAT-1",
    "name":"SAT-1",
    "availability":"2018-01-29T14:50:29.422405Z/2018-01-30T14:50:29.422405Z",
    "description":"<!--HTML-->\r\n<p>SAT-1</p>",
    "billboard":{
      "eyeOffset":{
        "cartesian":[
          0,0,0
        ]
      },
      "horizontalOrigin":"CENTER",
      "image":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADJSURBVDhPnZHRDcMgEEMZjVEYpaNklIzSEfLfD4qNnXAJSFWfhO7w2Zc0Tf9QG2rXrEzSUeZLOGm47WoH95x3Hl3jEgilvDgsOQUTqsNl68ezEwn1vae6lceSEEYvvWNT/Rxc4CXQNGadho1NXoJ+9iaqc2xi2xbt23PJCDIB6TQjOC6Bho/sDy3fBQT8PrVhibU7yBFcEPaRxOoeTwbwByCOYf9VGp1BYI1BA+EeHhmfzKbBoJEQwn1yzUZtyspIQUha85MpkNIXB7GizqDEECsAAAAASUVORK5CYII=",
      "pixelOffset":{
        "cartesian2":[
          0,0
        ]
      },
      "scale":1,
      "show":true,
      "verticalOrigin":"CENTER"
    },
    "label":{
      "fillColor":{
        "rgba":[
          255,255,0,255
        ]
      },
      "font":"11pt Lucida Console",
      "horizontalOrigin":"LEFT",
      "outlineColor":{
        "rgba":[
          0,0,0,255
        ]
      },
      "outlineWidth":2,
      "pixelOffset":{
        "cartesian2":[
          6,-4
        ]
      },
      "show":true,
      "style":"FILL_AND_OUTLINE",
      "text":"SAT-1",
      "verticalOrigin":"CENTER"
    },
    "path":{
      "show":[
        {
          "interval":"2018-01-29T14:50:29.422405Z/2018-01-30T14:50:29.422405Z",
          "boolean":true
        }
      ],
      "width":1,
      "material":{
        "solidColor":{
          "color":{
            "rgba":[
              255,255,0,255
            ]
          }
        }
      },
      "resolution":120
    },
    "position":{
      "interpolationAlgorithm":"LAGRANGE",
      "interpolationDegree":4,
      "referenceFrame":"FIXED",
      "epoch":"2018-01-29T14:50:29.422405Z",
      "cartesian":[
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    "2018-01-30T14:40:29.422405",-5406065.28369,4034371.27643,62053.7170428,
    "2018-01-30T14:45:29.422405",-5886789.4967,2816411.68256,-1715774.70749,
    "2018-01-30T14:50:29.422405",-5749049.02252,1281196.19004,-3294492.30213
      ]
    }
  }
]

The dates of the samples in your position data are in local time, but judging by the other dates in the document, you probably intended them to be in GMT.

Hi Scott,
Thank you for the quick reply. Maybe I have missed it but all the dates that are in the .czml file are in UTC and is inline with the dates in the position data.

Regards,

Bryan

ISO dates with no time zone specified are local time.

“2018-01-29T14:50:29.422405”,3966802.4139,-4872647.02421,-2460178.82662,

Probably this is a bug in whatever tool generated your CZML.