.. _file_attitude_gnss_attitude.h:

File gnss_attitude.h
====================

|exhale_lsh| :ref:`Parent directory <dir_attitude>` (``attitude``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS



GNSS satellite attitude (body) frame computation. 



.. contents:: Contents
   :local:
   :backlinks: none

Definition (``attitude/gnss_attitude.h``)
-----------------------------------------


.. toctree::
   :maxdepth: 1

   program_listing_file_attitude_gnss_attitude.h.rst



Detailed Description
--------------------

Stanford NAV LAB 

0.1 

2025-06-07

Copyright (c) 2025

Computes the canonical GNSS satellite "yaw-steering" body frame used for antenna gain-pattern lookups (nadir / sun cross-track / along-track), mirroring the attitude computation in ``GNSSMeas.setup_measurements`` (``projects/Plasmasphere_Delay_Datagen/src/gnss_meas.py``). This frame is orthonormal by construction and is distinct from the (non-orthonormal) ``ijk_to_ecef_rot`` frame used for antenna phase-center-offset (PCO) corrections  see ``lupnt/interfaces/antex_loader.h``. 




Includes
--------


- ``lupnt/core/definitions.h``



Included By
-----------


- :ref:`file_agents_gnss_constellation.h`

- :ref:`file_lupnt.h`




Namespaces
----------


- :ref:`namespace_lupnt`


Classes
-------


- :ref:`exhale_class_classlupnt_1_1GnssAttitude`