What is the constant h in Price's power law for gravitational radiation?

[stevebd1]

In prices's theorem, the power law damping of the radiative tail can take the asymptotic form of-

$$\delta m(v_1) \sim hv_1^{\ -p}$$

where $\delta m$ is the mass-energy of the radiation flux, $v_1$ is the null coordinate and $p$ determines the decay rate of the radiation (≥11 for gravitational radiation).

$h$ is simply described as an 'arbitary constant', another paper suggests it might be '..a constant that depends on the geodesic’s constants of motion..'. Any suggestions as to what it might be?

 

[Greg Bernhardt]

@stevebd1 did you have any more insight on this topic?