Magnetorquers
=============

Tier Legend
-----------

.. list-table::
   :header-rows: 1
   :widths: 15 85

   * - Tier
     - Meaning
   * - ⚪
     - Representative or simplified magnetorquer layout/defaults.
   * - 🔵
     - Axis/layout and dipole authority are traceable or explicitly stated.
   * - 🟣
     - Blue-tier information plus source-backed actuator noise or uncertainty defaults.
   * - 🟡
     - Purple-tier information plus source-backed actuator bias/error model defaults.

.. list-table::
   :class: sortable-factory
   :header-rows: 1
   :widths: 8 18 22 14 14 14 10

   * - Tier
     - Model
     - Factory
     - Documentation
     - Source
     - Missions
     - Notes
   * - 🔵
     - BRITE air-core coils
     - ``create_gnb_air_core_magnetorquers``
     - :doc:`Factory <../ADCS.satellite_factory.actuators.create_cubesat_MTQ>`
     - `USU DigitalCommons <https://digitalcommons.usu.edu/smallsat/2004/All2004/24/>`__
     - BRITE-Austria
     - Preliminary design dipole; not flight-calibrated.
   * - ⚪
     - ISIS Magnetorquer Board
     - ``create_isis_magnetorquer_board``
     - :doc:`Factory <../ADCS.satellite_factory.actuators.create_cubesat_MTQ>`
     - 
     - BeaverCube 1, BeaverCube 2
     - 3-axis layout + defaults.
   * - 🔵
     - LightSail 2 torque rods
     - ``create_stras_space_torque_rods``
     - :doc:`Factory <../ADCS.satellite_factory.actuators.create_cubesat_MTQ>`
     - `doi:10.1016/j.asr.2020.06.029 <https://www.sciencedirect.com/science/article/pii/S027311772030449X>`__
     - LightSail 2
     - 3-axis rods; dipole known.
   * - 🔵
     - ESTCube-1 electromagnetic coils
     - ``create_estcube1_magnetorquers``
     - :doc:`Factory <../ADCS.satellite_factory.actuators.create_cubesat_MTQ>`
     - `ScienceDirect <https://www.sciencedirect.com/science/article/pii/S0094576515302216>`__
     - ESTCube-1
     - Body-axis coils; nominal dipole.
   * - 🔵
     - MOVE-II PCB magnetorquers
     - ``create_moveii_pcb_magnetorquers``
     - :doc:`Factory <../ADCS.satellite_factory.actuators.create_cubesat_MTQ>`
     - `EUCASS <https://www.eucass.eu/doi/EUCASS2017-664.pdf>`__
     - MOVE-II
     - Equivalent 3-axis PCB coils.