Information about a propagation model
[info] = CL_ex_getInfo(mod, type_oe, mean_oe [[, er, mu, j1jn]])
Computes data related to the specified orbit propagation model and for the given orbital elements.
The available models are:
"central": Central force (osculating elements = mean elements)
"j2sec": Secular effects of J2 (osculating elements = mean elements by convention)
"lydsec": Lyddane (mean elements include secular effects only)
"lydlp": Lyddane (mean elements include secular and long period effects)
"eckhech": Eckstein-Hechler (mean elements include secular and long period effects)
The computed information is gathered in a structure (info):
- info.mod: Model name
Additional information:
eckhech:
- info.exf: Mean eccentricity vector x-component (e * cos(w)) of frozen orbit
- info.eyf: Mean eccentricity vector y-component (e * sin(w)) of frozen orbit
- info.dgomdt: Mean secular drift of right ascension of ascending node [rad/s]
- info.dpsodt: Mean secular drift of argument of latitude (w+M) [rad/s]
lydsec, j2sec or central:
- info.eccf: Mean eccentricity of frozen orbit
- info.pomf: Mean argument of periapsis of frozen orbit
- info.dgomdt: Mean secular drift of right ascension of ascending node [rad/s]
- info.dpsodt: Mean secular drift of argument of latitude (w+M) [rad/s]
Note:
The outputs depend on semi major-axis, eccentricity and inclination only.
See Propagation models for more details.
(string) Model name: "central", "j2sec", "lydsec", "lydlp", "eckhech". (1x1)
(string) Type of orbital elements used for input/output: "kep", "cir", "cireq" or "equin". (1x1)
Mean orbital elements. (6xN)
(optional) Equatorial radius. Default: %CL_eqRad. [m] (1x1)
(optional) Gravitational constant. Default: %CL_mu. [m^3/s^2] (1x1)
(optional) Vector of zonal harmonics coefficients truncated at order 6 (J1 to J6). Default: %CL_j1jn(1:6). [-] (6x1)
(structure) Information data for the given orbital elements (containing vectors of size (1xN)).
CNES - DCT/SB