Persistent Identifier
|
hdl:2014/45145 |
Publication Date
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2010-08-02 |
Title
| Optical navigation plan and strategy for the Lunar Lander Altair |
Author
| Riedel, Joseph E. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Vaughan, Andrew T. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Werner, Robert A. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Wang, Tseng-Chan (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Nolet, Simon (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Myers, David M. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Mastrodemos, Nickolaos (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Lee, Allan Y. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Grasso, Christopher (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Ely, Todd A. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010)
Bayard, David S. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010) |
Point of Contact
|
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Riedel, Joseph E. |
Description
| This paper reviews the currently planned Altair Optical Navigation (OpNav) system. The discussion includes description of the OpNav camera manifest. The Altair OpNav plan envisions one, OpNav camera assembly, with perhaps a functional backup that includes a wide angle-imager (of 40° to 60° field of view – FOV), and a narrow angle imager (of 1 to 3° FOV) co-mounted on a 2-degree-of-freedom gimbal. Both imagers are assumed to be relatively wide aperture and large dynamic range to provide excellent short-exposure images at mid-latitudes, and adequate images of longer-exposure near the poles. Landmark modeling and tracking methodology is discussed, including the stereophotoclinometry method assumed to be used to obtain high-accuracy terrain maps at lunar landing sites of 1- 2m, and 50-100m elsewhere, using the images expected to be obtained from the Lunar Reconnaissance Orbiter (LRO). Characteristics of the OpNav navigation system are discussed and architecture and results from landing simulations presented, showing expected landing accuracies of better than 10m. |
Subject
| Other |
Production Date
| 2010-08-02 |