I am interested to know more about why you think it is an ideal location for space launches?
I am now not Loru, but I can maybe help you in general about the geographic requirements of space launch facilities.
- Rockets get better performance by launching eastwards and exploit the rotation of earth, which is 469 m/s at the equator.
- So, you ideally want to be as close to the equator as possible for most launches (except launches into polar orbits, where this velocity of Earth is an penalty). Banaba Island is about 1 degree South, that is even closer to the equator than the ESA Kourou spaceport.
- This is especially important for launches into geostationary orbits, which are the bulk of the commercial launches.
- Next, you want lots of unpopulated surface east of the launch site. Nobody likes stages dropping on his house. Ideal is ocean, since ocean also simplifies recovery of spend stages or launch aborts of manned spacecraft. There is almost nothing east of Banaba Island for the next 2000 km in various azimuths, enough even for the typical flight profile of three stage rockets.
- Finally, launching rockets makes a lot of noise. While the pure chemical pollution of a spaceport is even on a busy spaceport low, the light and noise pollution can be extreme. Thus it is better to have some distance between population centers and the spaceport. The current population of Banaba island is a much smaller problem than for example doing that in Kenya or Japan.
This here is a fictional spaceport, which is artistic, but not really engineered. The distance between port, residential areas and launch complex is much too short, you would need to evacuate them before every launch. It would be possibly a better solution to move the launch complexes on platforms in the water.
Here in the simulation, this doesn't matter. Virtual citizens don't complain about noise, even if you expect them to actually be engineers living in the hotel complex of the spaceport and no normal citizens who would never leave the island.
And the 0.6% chance of a real rocket exploding on the launch pad or during the initial meters of flight is not that bad, since a restart of the simulation fixes everything.
Still, you can sure find lots of aerospace reasoning for choosing Banaba Island. Its pretty remote location helps filling some gaps in tracking station coverage. It is close to the equator and could for example also serve as base for SeaLaunch-like operations, if you would just have a long enough runway there to permit getting rockets delivered and assembled on the island.