The orbital period of a satellite does not depend on the mass of the moon, it depends only on radius of the rotation. Satellites can operate by themselves or as part of a larger system, a satellite formation or satellite constellation.
Therefore , the time period of satellite will be equal to that of the period of the moon which is given as 28.5 days
<span>Mercury's distance at inferior conjunction is 0.61 AU
Looking at a table of orbits, Mercury has an orbital distance of 0.39 AU. So the inferior conjunction will be:
1 AU - 0.39 AU = 0.61 AU</span>
