L-III-XVII

Also known as NotMoon. Silicate surface. Spheriod, minimally cratered. Moment of inertia suggests a dense metal layer underneath the surface. The density change between the silicate surface and the much denser layer underneath occurs at an average depth of two-hundred-sixteen metres.

L-III-XVII, excluding local surface variations and craters, is oblate with an aspect ratio of approximately 1:1.3. It deviates further from a strict oblate spheroid in that there is a distinct flattening of one side, rendering the closest form something similar to a very rounded egg. It is too small for such a shape to be the result of gravitational attraction.

There's nothing unsual about the surface other than it's lack of cratering and overall shape.

L-III-XVII Interior:

Estimated mass: 6.6E+15 kg, or 6.6E+3 GTne. Estimated dimensions:

Best-fit bounded sphere diametre is 9 km. Cigar-shaped protrusions (marked in light pink): 5250 m length, 800 m narrow diametre, 1 km maximum diametre. Cone-shaped protrusions (marked in dark pink): 2750 m length, maximum height above presumed normal surface (marked in black), 1 km. Disc-shaped protrusions (marked in bright red): 2750 m diametre

Interior density: 10,500 kg/m^3 (comparable to silver)

As of 5/5/14 real-time (T+290), thanks to neutrino scanning, three-dimensional density maps have been included, which show internal structure. The scans reveal a disk of density 20,000 kg/m^3 (comparable to plutonium or tungsten-though if it were pure plotonium, it would have critical mass, and therefore glow on the neutrino scans, as well as being detectable by other means, making this unlikely). This disk is surrounded by a spherical void of volume 200km^3, which is surrounded by a kilometre-thick shell of the same density. There has been much speculation as to the purpose of this structure.