Wednesday, October 15, 2014

Thesis

I'm back with a quick update!

I have been sidetracked from the GUI for the time being with my thesis project, which will eventually turn into the Asteroid/Comet Toolbox along with the other asteroid functions I have made.

As of now, nothing has been coded yet. However, the method is set and the math is almost all mathed out.
Comet 67P Churyumov-Gerasimenko

There will be functions for:

  • A new gravity model 
    • The point mass model does not work for convex structures such as 67P seen above)
  • Radiation pressure and emissivity
  • Model of comet off-gassing
    • Composition matrix
      • Volatilizes sublimate and have set constants/parameters
  • Change in orbital elements and rotation due to SRP and off-gassing
    • In attempt to analyze the yarkovsky effect
  • Trajectory of off-gassed elements
    • If they will impact an orbiting object
    • Ability to predict a tail
      • Would need to include ionization model
Lucky for me, ESA currently has the Rosetta spacecraft in orbit about the comet 67P Churyumov-Gerasimenko (seen above) and the oort-cloud comet, Sliding Spring, is making a close approach to Mars in the upcoming week. I plan on using data from these missions to validate my model.

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