Run #5:

600 bodies (blue, tiny)

5e20 mass each

341km radius each

0 ecc?

0 inc

random orbits

300,000 to 900,000

305 bodies (purple, moonlet) <-------------dense second ring of material at fixed distance within main disk.

1e21 mass each

430km radius each

0.025 +/- 100% ecc

0 inc

random orbits

600,000 to 650,000

RESULTS (4403 years)

4 moons:

1: 3.45e22 kg, 2797.27 km diameter, 336699.8338 km SMA, 0.071377976 ecc, tiny 318

2: 9.90e22 kg, 3975.64 km diameter, 438558.2045 km SMA, 0.040308547 ecc, tiny 401

3: 3.90e23 kg, 6281.56 km diameter, 627899.5448 km SMA, 0.020376947 ecc, moonlet 63

4: 8.30e22 kg, 3749.10 km diameter, 869612.6261 km SMA, 0.0575289 ecc, moonlet 135

COMMENTS:

- I made two belts - a main "tiny" belt containing 600 bodies at 5e20kg, from 300k-900k (I think I accidentally set their ecc to 0), and a denser "moonlet" belt within the main belt containing 305 bodies at 1e21 kg from 600k to 650k with ecc 0.00-0.05.

- it only took 17 years to form the four satellites.

- However, the moons are listed in gravsim in a strange order - the two outer moons are listed first, then the two inner moons. I have no idea why.

- Bizarrely there is MORE mass here than there was to start with?! I have no idea how that happened, I seem to have sprouted an extra 3 "tinies" worth of mass (6.065e23 kg total instead of 6.05e23 kg. I was

*sure* that I had 600 tinies (3e23kg total) and 305 (3.05e23 kg total) moonlets...! I guess I must be wrong about that but... weird!

- I did however end up with a larger moon around the 600k distance, with the other three moons being about the same sort of size as in the other sims. I'm not sure if the largest moon formed first though (my collision.dat file for some reason didn't record this gsim?) - as far as I can see the last body in its neighbourhood that might have been in its neighbourhood was moonlet 97 which disappeared at year 3 (it hit either 63 or 135), then 317 and 318 merged closest to the planet at year 17 and there were four moons after that.

- Very strange. Maybe someone else could regenerate the run from scratch and see what they get?