Path: SC/Attitude
% Compute the angles to align the solar wing normal with the sun
The solar wing is assumed to be along the y-axis and the thrust vector
along the x-axis. We roll (about) x and rotate the normal until it is
aligned with the sun. The zero solar array angle is with the solar
array normal aligned with +x.
Type SunVectorPointing for a demo
--------------------------------------------------------------------------
Form:
[qECIToBodyTarget, sAAngle] = SunVectorPointing( uECI, uSunECI )
--------------------------------------------------------------------------
------
Inputs
------
uECI (3,1) Desired pointing vector
uSunECI (3,:) Sun vector in the ECI frame
-------
Outputs
-------
qECIToBodyTarget (4,:) Angle about unit vector (rad)
sAAngle (1,:) Angle about wing normal vector (rad)
--------------------------------------------------------------------------
Common: Graphics/Plot2D Common: Quaternion/Mat2Q Common: Quaternion/Q2Mat Common: Quaternion/QForm Common: Quaternion/U2Q Math: Linear/Dot Math: Linear/Unit
Back to the SC Module page