The Mars Reconnaissance Orbiter (MRO) spacecraft has been in operation around Mars since March 2006. The Context Camera (CTX), aboard MRO, has returned over 110,000 images of Mars at approximately 5–6 meters per pixel, providing nearly global coverage. Based on our work, reconstruction of MRO's orbit and camera pointing from ground tracking are offset from the Mars global coordinate system, with the 95^th percentile of test points offset by ≈850 meters, corresponding to ≈150 CTX pixels. While the original level of accuracy is potentially useful for some applications, providing relative control (image‐to‐image) and absolute or full control (image‐to‐ground reference) greatly improves the utility of the data. As a proof‐of‐concept, we have fully controlled all usable images of Mars Chart 30, Mare Australe, which is poleward of 65°S. This represents 4.7% of Mars’ surface area and comprises 9,652 images (≈8% of the CTX catalog as of PDS release #48). The control was produced through a mixture of automated code and manual adjustment and validation, and mosaics were produced with manual input to provide a useful product with the best, most consistent images on top. The data – mosaics and updated SPICE kernels – are available to the community through NASA's Planetary Data System (PDS) Imaging & Cartography Annex. The workflow developed for this product is applicable to the remainder of Mars and other planetary bodies.

中文翻译：

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火星南极地区完全受控的6米每像素马赛克

该火星勘测轨道飞行器（MRO自2006年3月语境相机（CTX））飞船一直在绕火星运行，船上MRO，又回到了火星11万张图像每个像素约5-6米，几乎全球范围的。根据我们的工作，重建MRO的轨道和相机地面跟踪指向是从火星全局偏移坐标系，与95^日测试点的百分位偏移≈850米，对应于≈150个CTX像素。虽然原始的准确度水平可能对某些应用有用，但是提供相对控制（图像到图像）和绝对或完全控制（图像到地面参考）可以大大提高数据的实用性。作为概念验证，我们已完全控制了Mare Australe的Mars Chart 30的所有可用图像，该图像位于65°S的极点处。这占火星表面积的4.7％，包含9,652张图像（截至PDS版本＃48，约为CTX目录的8％）。控件是通过自动代码以及手动调整和验证的混合来生成的，并且马赛克是通过手动输入生成的，从而为有用的产品提供了最佳，最一致的图像。数据-镶嵌图和更新的SPICE内核-可通过NASA的行星数据系统（PDS）成像和制图附件向社区提供。为此产品开发的工作流程适用于其余的火星和其他行星体。