its simple Bill

all orbital equations include g.
and g is proportional to mass

every planet or asteroid or satellite has its own separate g

thats how I know that the mass of an object is essential
for determining orbital velocity.

you cannot determine orbits without knowing g
http://en.wikipedia.org/wiki/Gravitation


Quote:
Gravitation is a natural phenomenon by which physical bodies attract with a force proportional to their mass.


for instance the suns surface gravity is 28 times the earths surface gravity.






3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.