I would like to know if the following properties of this asteroid are realistic without conflicting with each other.
- situated in the inner part of the asteroid belt in the Solar System
- S-type asteroid: "Relatively bright with an albedo of
0.10-0.22. Composition is metallic iron mixed with iron- and
magnesium-silicates. S-type asteroids dominate the inner
asteroid belt.". Source
Geometric albedo: 0.2 approx.
- equatorial radius of about 8km. Slightly elongated in shape, similar to 951 Gaspra
- gravitational acceleration on the surface along the equator is 0.01 m/s^2. For the story only this acceleration matters.
- density lower than 3.0g/cm^3 which is common for known S-type asteroids (could be moderately changed to fit points 2 and 3)
- Mining operations are currently (in story) mainly extraction of Magnesium rich enstatite chondrites, Aluminum, Iron.
- The asteroid revealed to be rather poor in precious metals and rare elements of which existing surface deposits were quickly exhausted.
- The surface contains Olivine and Pyroxene minerals and has a distinctive greenish color
- Has a mound on the equator, 30 meters high. It is the highest point along the equator.
Of particular relevance to the story are the radius and gravitational acceleration. If unfeasable radius could be reduced in case of a lower gravity acceleration.
In my research I have found a number of similar asteroids (e.g. 433 Eros) but none with all these properties. Data are often still unknown. But is this asteroid realistic?
I include a drawing that is not in scale but just for clarity.
Edit regarding composition: the asteroid has a Nichel-Iron core as typical with S-Type asteroids. Has Olivine and Pyroxenes on the surface and at mining depth. So Magnesium, Aluminium, Iron are present and mined.