My question is then:
Does the time dilation due to gravity need to be added to the time dilation due to velocity? IE, GPS satellites  do they have to account for both?
IE:
[tex]T_{1}=T_{2}\sqrt{1{Gm_{1}}/r^2} + T_{2}\sqrt{1{2Gm_{1}}/r^2}[/tex]
Where the first term is the time dilation due to the velocity of the circular orbit, and the 2nd due to gravity. I still think there is a problem in my circular orbit formula, and that the two terms should match.
Or am I just way to far off, and I should go RTFM some more
