Comparison of the covariance analysis results of the quest and the triad methods

This paper describes the analytical expression of the attitude covariance matrix for the QUESTand TRIAD methods in an individual case. Influence of measurement model parameters on the accuracy ofattitude determination via the methods method is analyzed. An influence of changes in the accuracy of oneof the sensors on the attitude determination is considered

Attitude determination method; QUEST; TRIAD; measurement model; covariance analysis; attitude covariance matrix

Shuster, M. D.; Oh, S. D. 1981. Three-Axis Attitude Determination from Vector Observations.

Journal of Guidance and Control, vol. 4, no. 1, January-February 1981. pp. 70–77.

Wahba, G. 1965. “Problem 65-1: A Least Squares Estimate of Spacecraft Attitude”. SIAM

Review, vol. 7, no. 3, July 1965. 409 p.

Markley, F. L., Mortari, M. 2000. “Quaternion Attitude Estimation Using Vector Measurements”.

The Journal of the Astronautical Sciences, vol. 48, nos. 2 and 3, April-September 2000. pp. 359–380.

Brasoveanu, D.; Hashmall, J.; Baker D. “Spacecraft attitude determination accuracy from

mission experience”, NASA Technical Memorandum 104613, 1994, 104 p.

Keat, J. 1977. “Analysis of Least-Squares Attitude Determination Routine DOAOP,” Computer

Sciences Corporation Report CSC/TM-77/6034, February 1977.

Shuster, M. D. 1989. “Maximum Likelihood Estimation of Spacecraft Attitude,” The Journal of

the Astronautical Sciences, vol. 37, no. 1, January-March 1989, pp. 79–88.

Cheng, Y.; Shuster, M. D. “QUEST and The Anti-QUEST: Good and Evil Attitude Estimation,”

The Journal of the Astronautical Sciences, vol. 53, no. 3, 2005, pp. 337–351.