CL_ex_lyddaneInfos

Description

• This function is deprecated.

  Replacement function: CL_ex_getInfo

• Computes data related to Lyddane orbit propagation analytical model.

  These data are:

  - Eccentricity vector of frozen orbit

  - Secular drifts of some angular orbital elements

  The output is a structure with the following fields:

  - infos.eccf: Mean eccentricity of frozen orbit

  - infos.pomf: Mean argument of periapsis of frozen orbit

  - infos.dgomdt: Secular drift of mean right ascension of ascending node [rad/s]

  - infos.dpsodt: Secular drift of mean argument of latitude [rad/s]

• Note:

  The outputs only depend on semi major-axis, eccentricity and inclination.

• The orbital elements used are the following:

  

• See CL_ex_lyddane for more details on the propagation model.

• Warning :

  - The input argument "zonals" is deprecated as of CelestLab v3.0.0. It has been replaced by "j1jn".

Parameters

mean_kep:

Mean orbital elements (6xN).

er:

(optional) Equatorial radius [m] (default is %CL_eqRad)

mu:

(optional) Gravitational constant [m^3/s^2] (default value is %CL_mu)

j1jn:

(optional) Vector of zonal coefficients J1 to Jn (troncated to J6) to be used (default is %CL_j1jn(1:6)) (1xNz)

infos:

(structure) Data for the given orbital elements (containing (1xN) vectors)

Authors

• CNES - DCT/SB

See also

• CL_ex_lyddane

• CL_ex_meanLyddane

Examples

// Example : mean_kep = [7.e6; 1.e-2; 1.7; 0; 0; 0 ]; // sma, ecc, inc... infos = CL_ex_lyddaneInfos(mean_kep);