RK-33 is the sixth moon of Kkaggrak. It is an asteroid moon, made mainly of silicate rock.
An average moon of Kkaggrak, RK-33 has silicate rocks and a large deposit of iron veins.
RK-33's mass is approximately 0.0012 times earth's. With this masss it cannot be pulled together into a complete sphere.
RK-33 has a large deposit of iron at its center, but is too miniscule to be mined. It is mainly made of silicate rocks, but due to small rocks and micrometeors hitting its surface, there are tiny deposits of other materials.