from_vuw_to_ijk Interface

public interface from_vuw_to_ijk

Conversion from vuw to IJK

Calls

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Module Procedures

private subroutine from_vuw_to_ijk_mat(mu, r, v, a, c, cdot)

Compute the transformation matrices to convert VUW to IJK.

Arguments

Type IntentOptional Attributes Name
real(kind=wp), intent(in) :: mu

gravitational parameter [km^3/s^2]
real(kind=wp), intent(in), dimension(3) :: r

position vector of target [km]
real(kind=wp), intent(in), dimension(3) :: v

velocity vector of target [km/s]
real(kind=wp), intent(in), optional, dimension(3) :: a

acceleration vector of target [km/s^2] (if not present, then a torque-free force model is assumed)
real(kind=wp), intent(out), dimension(3,3) :: c

C transformation matrix
real(kind=wp), intent(out), optional, dimension(3,3) :: cdot

CDOT transformation matrix

private subroutine from_vuw_to_ijk_rv(mu, rt_ijk, vt_ijk, dr_vuw, dv_vuw, r_ijk, v_ijk)

Transform a position (and optionally velocity) vector from VUW to IJK.

Arguments

Type IntentOptional Attributes Name
real(kind=wp), intent(in) :: mu

gravitational parameter [km^3/s^2]
real(kind=wp), intent(in), dimension(3) :: rt_ijk

Target IJK absolute position vector [km]
real(kind=wp), intent(in), dimension(3) :: vt_ijk

Target IJK absolute position vector [km]
real(kind=wp), intent(in), dimension(3) :: dr_vuw

Chaser vuw position vector relative to target [km]
real(kind=wp), intent(in), dimension(3) :: dv_vuw

Chaser vuw position vector relative to target [km]
real(kind=wp), intent(out), dimension(3) :: r_ijk

Chaser IJK absolute position vector [km]
real(kind=wp), intent(out), optional, dimension(3) :: v_ijk

Chaser IJK absolute position vector [km]