Name

CL_oe_cir2car — Circular adapted to cartesien orbital elements

Calling Sequence

   [pos_car,vel_car[,jacob]] = CL_oe_cir2car(cir[,mu])
   
   

Description

  • Given the circular adapted parameters [a,ex,ey,i,omega,w+M], this function computes the cartesien parameters [rx,ry,rz,vx,vy,vz] for an elliptic orbit.

    The transformation jacobian is optionally computed.

  • Last update : 29/11/2007

Parameters

cir:

circular adapted parameters [a,ex,ey,i,omega,w+M] [rad],[m] (6xN)

mu :

(optionnal) geocentric gravitational constant. [m^3/s^2] (default value is %CL_mu)

pos_car:

satellite's cartesien position [rx,ry,rz] [m] (3xN)

vel_car:

satellite's cartesien velocity [vx,vy,vz] [m/s] (3xN)

jacob:

(optional) transformation jacobian d(rx,ry,rz,vx,vy,vz)/d(a,ex,ey,i,omega,w+M) (6x6xN)

Bibliography

1 CNES - MSLIB FORTRAN 90, Volume V (mv_cir_car)

Authors

CNES - DCT/SB

See also

CL_oe_car2cir

Examples

// Example 1
cir = [7204649,-2.9d-4,1.34d-3,1.7233,1.5745,0.5726]';
[pos_car,vel_car,jacob1] = CL_oe_cir2car(cir);
[cir2,jacob2] = CL_oe_car2cir(pos_car,vel_car);