CL_fr_inertial2qsw

Description

• Converts the coordinates of a vector from the inertial frame to the "qsw" local orbital frame.

  The inertial frame is implicitly the frame relative to which the satellite's position and velocity are defined. The "qsw" local frame is built using these position and velocity vectors.

• See Local frames for more details on the definition of local frames.

Parameters

pos_car:

satellite's position vector relative to the inertial frame [m] (3xN)

vel_car:

satellite's velocity vector relative to the inertial frame [m/s] (3xN)

vect_inertial:

cartesian coordinates in the inertial frame [m] (3xN)

vect_qsw:

cartesian coordinates in the "qsw" local orbital frame [m] (3xN)

Bibliography

• 1) Mecanique spatiale, CNES - Cepadues 1995, Tome I, section 10.2.2.3 (Definition du Repere orbital local)

• 2) CNES - MSLIB FORTRAN 90, Volume O (mo_geo_qsw)

Authors

• CNES - DCT/SB

See also

• CL_fr_qsw2inertial

• CL_fr_qswMat

• CL_fr_tnwMat

• CL_fr_inertial2tnw

• CL_fr_tnw2inertial

Examples

pos_car = [[3500.e3; 2500.e3; 5800.e3], [4500.e3; 2100.e3; 6800.e3]]; vel_car = [[1.e3; 3.e3; 7.e3], [2.e3; 3.e3; 6.e3]]; vect_inertial = [[1;0;0], [1;1;1]]; vect_qsw = CL_fr_inertial2qsw(pos_car, vel_car, vect_inertial)