Documentation

Track Control Buttons

Track has a few features that allow for window, configuration and graphical manipulation in addition to the default WorldWind configurations for those familiar with that framework, being as follows:

  • Full Screen /Normal Screen - This option provides the ability for the user to toggle full screen on and off. The F11 key can also be used as a shortcut. To exit the full screen mode, either press F11 or the Escape keys.

  • Reset View - Resets the current view to the default zoom level centred on the Null Island (0°, 0°).

  • Enable /Disable Flat Earth - This option provides the ability for the user to visualise the Earth in either a Spherical or Flat layout. The Flat layout is based on the Mercator Projection.

  • Open Configuration File - Loads an XML configuration. The XML configuration file defines the scenario to visualise. I.e. Which spacecrafts, ground stations and data are to be displayed. See the Software User Manual for a full description of the XML Configuration file

Interpreting the visualised information

  • Ground station circle of visibility - A ground station can be visualised as seen here. In this image, it is possible to see the groundstation's circle of visibility, as well as the next acquisition and loss of signal events.

  • Earth ECEF Axes - This figure bellow displays 3D environment Cartesian Axes, x in red, y in green and z and blue.

  • Spacecraft ground track, orbit and axes - This figure illustrates several key visualisation standards that come in T-track. The orbit is propagated in the future as the spacecraft advances in its orbit; it's past orbit path is also visualised. The ground track is a ground projection of the orbit track but is presented in a red color; so that the two are easily differentiated. Additionally, there is a nadir-line (indicated in the figure below as light gray) that is perpendicular and connects both orbit arc and ground track.

  • Swath path and Field of view - In addition to the above shown visualization standards, there are the field of view and swath path features, as seen here.