eval_tidal_coeff
Synopsis
eval_lambda ( cbar | Gbar_{1..4} | X | Y | Y^* ) [options]
Description
The eval_tidal_coeff tool evaluates one of a number of coefficients used in tidal expansions, as follows:
Label |
Symbol |
Description |
|---|---|---|
|
\(\cbar_{\ell,m,k}\) |
expansion coefficient for tidal potential |
|
\(\Gbar^{(1)}_{\ell,m,k}\) |
expansion coefficient for secular rate-of-change of longitude of periapsis |
|
\(\Gbar^{(2)}_{\ell,m,k}\) |
expansion coefficient for secular rate-of-change of semi-major axis |
|
\(\Gbar^{(3)}_{\ell,m,k}\) |
expansion coefficient for secular rate-of-change of eccentricity |
|
\(\Gbar^{(4)}_{\ell,m,k}\) |
expansion coefficient for secular rate-of-change of spin |
|
\(X^{n,m}_{k}\) |
Hansen coefficient |
|
\(\real[Y^{m}_{\ell}(\pi/2,0)]\) |
spherical harmonic at equator/prime meridian |
|
\(\real[Y^{m*}_{\ell}(\pi/2,0)]\) |
complex conjugate spherical harmonic at equator/prime meridian |
The coefficient is written to standard output.
Options
- -h, --help
Print a summary of options.
- --R/a=R_A
Ratio of stellar radius \(R\) to orbital semi-major axis \(a\).
- -e, --e=E
Orbital eccentricity \(e\).
- -n, --n=N
Hansen degree \(n\).
- -l, --l=L
Harmonic degree \(\ell\).
- -m, --m=M
Azimuthal order \(m\)
- -k, --k=K
Fourier index \(k\).
Output
The coefficient is printed to standard output.