Some ideas :
1)
Important: Ability to import formatted data from JPL Horizons (it is easy to receive it by mail, the idea would import the addon "Horizons" of Gravity Simulator to the Universe Sandbox) for simulating accurately the events in our solar system.
2) Rotating Frame: allows visualization of the effects of orbital resonance, it would be lovely to observe the US 3 simulating the Hilda family of asteroids (with gravitational resssonace with Jupiter), as seen here (plus Trojans asteroids), simulated by SOLEX integrator :
3) Kosai Mechanism, to accurately simulate the orbital evolution of planets and moons, especially the hot Jupiter exoplanets that are very close of your host stars, and normal moons too in simulations of moons gravitational captures.
4) Implementation of the action Yarkovsky effect, crucial for accurate simulation of the secular evolution of small bodies such as asteroids
5) Importation of TLE data of satellites for accurate simulation of their positions and orbital evolution.
6) Influence of solar radiation on the Earth's atmosphere through manual insertion of the KP index ( satellites affects the consequent expansion or reduction of the height of our atmosphere ) , would allow to forecast the reentry of satellites .
7) Possibility to import the observational data obtained by the software UFOcapture (specialized in capture of meteors by allsky cameras), that not only enable tracing paths of meteor showers and fireballs over the planet but also to determine the orbit of the stream of particles that create them. Currently there is the possibility of designing the 3D trajectories of meteors in Google Earth (technique used to determine the trajectory, impact point and orbit of the meteor Chelyabinsk )
Example of projected orbit traced by UFOOrbit:
Example of projected trajectory of meteors in Google Earth:
8 ) Importing of data of software Systemic for simulation of the orbit of candidates to exoplanets.
9) Solar wind , would be interesting to simulate solar sails in Universe Sandbox or even the effect of the solar radiation over comet tails.
Sources:
- Ufocapture:
http://sonotaco.com/e_index.html- SOLEX:
http://chemistry.unina.it/~alvitagl/solex/- Satellites TLE:
http://celestrak.com/- Systemic:
http://www.stefanom.org/devel/console-2/http://en.wikipedia.org/wiki/Systemic_%28amateur_extrasolar_planet_search_project%29Regards !!