icrf_frame Derived Type

type, public, extends(inertial_frame_class) :: icrf_frame

the fundamental inertial frame for the ephemeris (i.e., J2000).


Inherits

type~~icrf_frame~~InheritsGraph type~icrf_frame icrf_frame type~inertial_frame_class inertial_frame_class type~icrf_frame->type~inertial_frame_class type~reference_frame reference_frame type~inertial_frame_class->type~reference_frame type~celestial_body celestial_body type~reference_frame->type~celestial_body primary_body type~base_class base_class type~celestial_body->type~base_class

Constructor

public interface icrf_frame


Type-Bound Procedures

procedure, public, pass(from) :: transform

coordinate transformation routine

  • private subroutine transform(from, rv, to, et, eph, rv_out, status_ok)

    Transform a Cartesian state from one reference frame to another at a specified epoch. The from and to reference_frames may each be defined at a different epoch. The et ephemeris time is the time the transformation is to be done, and accounts for the motion of the two frame centers from from%et and to%et to et.

    Arguments

    Type IntentOptional Attributes Name
    class(reference_frame), intent(inout) :: from
    real(kind=wp), intent(in), dimension(6) :: rv
    class(reference_frame), intent(inout) :: to
    real(kind=wp), intent(in) :: et

    the time of the transformation [sec]
    class(ephemeris_class), intent(inout) :: eph

    for ephemeris computations (assumed to have already been initialized)
    real(kind=wp), intent(out), dimension(6) :: rv_out
    logical, intent(out) :: status_ok

procedure, public :: get_c_cdot => get_c_cdot_icrf

  • private subroutine get_c_cdot_icrf(me, eph, to_icrf, c, cdot, status_ok)

    rotation matrix for ICRF <-> ICRF

    Arguments

    Type IntentOptional Attributes Name
    class(icrf_frame), intent(inout) :: me
    class(ephemeris_class), intent(inout) :: eph

    for ephemeris computations (assumed to have already been initialized)
    logical, intent(in) :: to_icrf
    real(kind=wp), intent(out), dimension(3,3) :: c
    real(kind=wp), intent(out), optional, dimension(3,3) :: cdot
    logical, intent(out) :: status_ok

Source Code

    type,extends(inertial_frame_class),public :: icrf_frame
        !! the fundamental inertial frame
        !! for the ephemeris (i.e., J2000).
    contains
        procedure :: get_c_cdot => get_c_cdot_icrf
    end type icrf_frame