Telecommunications relay support of the Mars Phoenix Lander mission

2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI:10.1109/AERO.2010.5446953

C. Edwards, K. Bruvold, J. Erickson, R. Gladden, J. Guinn, P. Ilott, B. Jai, M. Johnston, R. Kornfeld, T. Martin-Mur, G. W. Mcsmith, Reid Thomas, P. Varghese, G. Signori, P. Schmitz

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引用次数: 19

Abstract

The Phoenix Lander, first of NASA's Mars Scout missions, arrived at the Red Planet on May 25, 2008. From the moment the lander separated from its interplanetary cruise stage shortly before entry, the spacecraft could no longer communicate directly with Earth, and was instead entirely dependent on UHF relay communications via an international network of orbiting Mars spacecraft, including NASA's 2001 Mars Odyssey (ODY) and Mars Reconnaissance Orbiter (MRO) spacecraft, as well as ESA's Mars Express (MEX) spacecraft. All three orbiters captured critical event telemetry and/or tracking data during Phoenix entry, descent and landing. During the Phoenix surface mission, ODY and MRO provided command and telemetry services, far surpassing the original data return requirements. The availability of MEX as a backup relay asset enhanced the robustness of the overall relay plan. In addition to telecommunications services, Doppler tracking observables acquired on the UHF link yielded a highly accurate position for the Phoenix landing site.12

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火星凤凰号着陆器任务的电信中继支持

凤凰号着陆器是美国宇航局的第一个火星侦察任务，于2008年5月25日抵达这颗红色星球。从着陆器在进入火星前不久脱离行星际巡航阶段的那一刻起，着陆器就不能再直接与地球通信，而是完全依赖于通过绕火星轨道运行的航天器的国际网络进行超高频中继通信，这些航天器包括美国宇航局的2001年火星奥德赛号(ODY)和火星侦察轨道器(MRO)航天器，以及欧洲航天局的火星快车号(MEX)航天器。在凤凰号进入、下降和着陆期间，所有三颗轨道飞行器都捕获了关键事件遥测和/或跟踪数据。在凤凰号地面任务期间，ODY和MRO提供了指挥和遥测服务，远远超过了最初的数据返回要求。MEX作为备份中继资产的可用性增强了整个中继计划的健壮性。除了电信服务之外，在超高频链路上获得的多普勒跟踪观测结果为凤凰号着陆点提供了高度精确的位置

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2010 IEEE Aerospace Conference

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