pint.models.stand_alone_psr_binaries.binary_orbits.OrbitFBX

class pint.models.stand_alone_psr_binaries.binary_orbits.OrbitFBX(parent, orbit_params=['FB0'])[source]

Orbits expressed in terms of orbital frequency and its derivatives FB0, FB1, FB2…

Methods

`d_orbits_d_FBX`(FBX)
`d_orbits_d_par`(par)	Derivative of orbital phase with respect to some parameter.
`d_pbprime_d_FBX`(FBX)
`d_pbprime_d_par`(par)	Derivative of binary period with respect to some parameter.
`orbit_phase`()	Orbital phase (between zero and two pi).
`orbits`()	Orbital phase (number of orbits since T0).
`pbdot_orbit`()	Reported value of PBDOT.
`pbprime`()	Instantaneous binary period as a function of time.

d_orbits_d_par(par)[source]: Derivative of orbital phase with respect to some parameter.

Note

This gives the derivative of orbit_phase, that is, it is scaled by 2 pi with respect to the derivative of orbits.

d_pbprime_d_par(par)[source]: Derivative of binary period with respect to some parameter.