Gyroscopes
==========

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

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

   * - Tier
     - Meaning
   * - ⚪
     - Representative or simplified gyro layout/defaults.
   * - 🔵
     - Hardware identity and axis layout are traceable; error defaults may be representative or assumed.
   * - 🟣
     - Blue-tier information plus source-backed measurement noise or accuracy defaults.
   * - 🟡
     - Purple-tier information plus source-backed bias, bias-bound, or calibration 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 rate sensors
     - ``create_gnb_rate_sensors``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `USU DigitalCommons <https://digitalcommons.usu.edu/smallsat/2004/All2004/24/>`__
     - BRITE-Austria
     - Preliminary design specs; bias random walk assumed.
   * - ⚪
     - ICM-20948 IMU gyros
     - ``create_ICM20948_IMU``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - 
     - BeaverCube 1, BeaverCube 2
     - 3-axis layout.
   * - 🟡
     - LightSail 2 PIB gyros
     - ``create_analog_devices_pib_gyros``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `doi:10.3390/aerospace10070579 <https://www.mdpi.com/2226-4310/10/7/579>`__
     - LightSail 2
     - Primary 3-axis; noise+bias known.
   * - 🔵
     - LightSail 2 mainboard gyros
     - ``create_intrepid_mainboard_gyros``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `doi:10.3390/aerospace10070579 <https://www.mdpi.com/2226-4310/10/7/579>`__
     - LightSail 2
     - Secondary 3-axis; approximate noise floor.
   * - 🟡
     - ADIS16405 gyros
     - ``create_adis16405_gyros``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `Deep Blue <https://deepblue.lib.umich.edu/bitstream/handle/2027.42/102312/jspringm_1.pdf?sequence=1>`__
     - RAX-1, RAX-2
     - RAX noise, bias bound, and RRW defaults.
   * - 🟡
     - Bosch BMX055 gyros
     - ``create_bmx055_gyros``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `mediaTUM <https://mediatum.ub.tum.de/doc/1483411/document.pdf>`__
     - MOVE-II
     - MOVE-II bias/noise defaults.
   * - 🟡
     - InvenSense ITG-3200 gyros
     - ``create_itg3200_gyros``
     - :doc:`Factory <../ADCS.satellite_factory.sensors.create_cubesat_gyro>`
     - `ASCE Library <https://ascelibrary.org/doi/10.1061/%28ASCE%29AS.1943-5525.0000504>`__
     - ESTCube-1
     - ESTCube bias/noise defaults.