Validation of Stereophotoclinometric Shape Models of Asteroid (101955) Bennu during the OSIRIS-REx Mission

被引：23

作者：

Al Asad, M. M. ^{[1
,2
]}

Philpott, L. C. ^{[1
]}

Johnson, C. L. ^{[1
,3
]}

Barnouin, O. S. ^{[4
]}

Palmer, E. ^{[3
]}

Weirich, J. R. ^{[3
]}

Daly, M. G. ^{[5
]}

Perry, M. E. ^{[4
]}

Gaskell, R. ^{[3
]}

Bierhaus, E. B. ^{[6
]}

Seabrook, J. A. ^{[5
]}

Espiritu, R. ^{[4
]}

Nair, H. ^{[4
]}

Ernst, C. ^{[4
]}

Daly, R. T. ^{[4
]}

Nolan, M. C. ^{[7
]}

Enos, H. L. ^{[7
]}

Lauretta, D. S. ^{[7
]}

机构：

[1] Univ British Columbia, Dept Earth Ocean & Atmospher Sci, Vancouver, BC V6T 1Z4, Canada

[2] Univ Calif Berkeley, Earth & Planetary Sci, 307 McCone Hall, Berkeley, CA 94720 USA

[3] Planetary Sci Inst, Tucson, AZ 85719 USA

[4] Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA

[5] York Univ, Ctr Res Earth & Space Sci, Toronto, ON M3J 1P3, Canada

[6] Lockheed Martin Space, Littleton, CO 80127 USA

[7] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

来源：

PLANETARY SCIENCE JOURNAL | 2021年 / 2卷 / 02期

关键词：

D O I：

10.3847/PSJ/abe4dc

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

NASA's OSIRIS-REx mission to asteroid (101955) Bennu relied on the production of real-time shape models for both spacecraft navigation and scientific analysis. The primary method of constructing shape models during the early phases of the mission was image-based stereophotoclinometry (SPC). The SPC shape models were used for operational planning, navigation, sample site selection, and initial scientific investigations. To this end, detailed analyses of the quality of each shape model and a thorough documentation of all sources of error were vital to ensure proper considerations of the limitations of each model. In this paper, we present methods used during the OSIRIS-REx mission to validate the SPC shape models and construct the associated quality reports. Although developed for the OSIRIS-REx mission, these validation techniques can be applied to SPC-derived shape models of other planetary bodies.

引用

页数：14

共 37 条

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