Changes

An Attitude Determination and Control (ADCS) provides measurements regarding a satellite's orbit and allows the satellite to change its inertial position.  

 

 

** A Kalman Filter is a probabilistic system that keeps track of a best estimate of its state (attitude) and its uncertainty, updating this estimate based on sensor inputs over time.

** Sensors could include star sensors, star trackers, IMUs, anything that gives the satellite measurements about its attitude. A large part of a building a well-functioning attitude determination and control system involves designing algorithms that preprocess and computes a sensor's estimate of the attitude based on its raw measurements (e.g. matching a picture taken by a star tracker to a star database).

** Actuators include any physical devices that allow for the rotation of the satellite. A key component of ADCS is to design and implement algorithms that compute optimal actuations to manipulate the attitude as intended.

== Examples of ADCS Hardware ==

== Examples of ADCS Hardware ==

** ADCS accuracy varies depending on the type and quality of mechanisms and control systems. The popular CubeSpace hardware used on 2U QB50 satellites has an accuracy of 0.2º to 0.6º (keep in mind, however, that the QB50 missions requirements regarding ADCS precision are fairly lax). The BlueCanyon XB1 high precision ADCS suggests an accuracy of 0.002º.  

** ADCS accuracy varies depending on the type and quality of mechanisms and control systems. The popular CubeSpace hardware used on 2U QB50 satellites has an accuracy of 0.2º to 0.6º (keep in mind, however, that the QB50 missions requirements regarding ADCS precision are fairly lax). The BlueCanyon XB1 high precision ADCS suggests an accuracy of 0.002º.  

* ADCS Maneuvering Rates

* ADCS Maneuvering Rates