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.

NASA 的 OSIRIS-REx 小行星任务 (101955) Bennu 依赖于为航天器导航和科学分析生成实时形状模型。在任务的早期阶段构建形状模型的主要方法是基于图像的立体光度计 (SPC)。SPC 形状模型用于运营规划、导航、样本点选择和初步科学调查。为此，对每个形状模型的质量进行详细分析并全面记录所有错误来源对于确保正确考虑每个模型的局限性至关重要。在本文中，我们介绍了 OSIRIS-REx 任务期间用于验证 SPC 形状模型并构建相关质量报告的方法。虽然是为 OSIRIS-REx 任务开发的，