Celestia Forums

Posted: **18.07.2011, 16:49**

Juno spacecraft:
launch date: 5th of august 2011
Destination: Jupiter
Orbital Insertion date: August 2016
Mass: 3625 kg

Juno's orbit around Jupiter:
The probe's planned orbit is highly elongated, and takes it close to the poles (within 4300 km (~2,670 miles)), but then far beyond even Callisto's orbit.
http://en.wikipedia.org/wiki/Juno_(spacecraft)
http://www.nasa.gov/mission_pages/juno/ ... 10707.html

Posted: **19.07.2011, 17:20**

Here's an addon:

Code: Select all

"Juno Orbiter" "Sol"
{
  Class "spacecraft"
  Mesh "JUNO.3ds"
  Radius 0.012

  Albedo 0.7
  UniformRotation
  {
    Period 0.008333333 # 2 rpm
    Epoch 2455792.5
  }

  Beginning "2011 08 05 16:27:50.663" #Launch
  Ending    "2012 08 04 16:31:05.663"

  BodyFrame {
    TwoVector {
      Center "Sol/Juno Orbiter"
      Primary {
        Axis "z"
        RelativePosition { Target "Sol" }
      }
      Secondary {
        Axis "x"
        RelativeVelocity { Target "Sol" }
      }
    }
  }
  Orientation [ 0 1 1 1 ]
  OrbitFrame { EclipticJ2000 { Center "Sol"}}

  SpiceOrbit {
    Kernel          "spk_ref_110805_120804_110608_1534mco.bsp"
    Target          "-61"
    Origin          "10"
    BoundingRadius    10
  }
}

Ofcourse you'll have to download the spice kernel file from the NAIF website.

Posted: **19.07.2011, 22:52**

--- edit ---

Posted: **20.07.2011, 08:41**

John,

You may be right. My whole solar system is based on spice kernels so I don't run into those problems

Maybe someone can test this?

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