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2. KETCHUM, E. A. and TOLSON, R.H. “Onboard Star Identification Without a Priori Attitude Information,” Journal of Guidance, Control, and Dynamics, Vol. 18, No. 2, March–April 1995, pp. 242–246.
3. MORTARI, D., JUNKINS, J. L., and SAMAAN, M.A. “Lost-In-Space Pyramid Algorithm for Robust Star Pattern Recognition,” presented as paper AAS 01-004 at the Guidance and Control Conference, Breckenridge, Colorado, January 31–February 4, 2001.
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5. SHALOM, E., ALEXANDER, J.W., and STANTON, R. H. “Acquistion and Tracking Algorithms for the ASTROS Star Tracker,” presented as paper AAS 85-050 at The Annual Rocky Mountain Guidance and Control Conference, Keystone, CO, 1985.