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Relay support for the Mars Science Laboratory mission

Show simple item record Edwards, Charles D. Jr, Bell, David J. Gladden, Roy E. Ilott, Peter A. Jedrey, Thomas C. Johnston, M. Daniel Maxwell, Jennifer L. Mendoza, Ricardo McSmith, Gaylon W. Potts, Christopher L. Schratz, Brian C. Shihabi, Mazen M. Srinivasan, Jeffrey M. Varghese, Phillip Sanders, Stephen S. Denis, Michel 2015-03-04T22:56:31Z 2015-03-04T22:56:31Z 2013-03-02
dc.identifier.citation 2013 IEEE Aerospace Conference, Big Sky, Montana, March 2-9, 2013 en_US
dc.identifier.clearanceno 13-0195
dc.description.abstract The Mars Science Laboratory (MSL) mission landed the Curiosity Rover on the surface of Mars on August 6, 2012, beginning a one-Martian-year primary science mission. An international network of Mars relay orbiters, including NASA’s 2001 Mars Odyssey Orbiter (ODY) and Mars Reconnaissance Orbiter (MRO), and ESA’s Mars Express Orbiter (MEX), were positioned to provide critical event coverage of MSL’s Entry, Descent, and Landing (EDL). The EDL communication plan took advantage of unique and complementary capabilities of each orbiter to provide robust information capture during this critical event while also providing low-latency information during the landing. Once on the surface, ODY and MRO have provided effectively all of Curiosity’s data return from the Martian surface. The link from Curiosity to MRO incorporates a number of new features enabled by the Electra and Electra-Lite software-defined radios on MRO and Curiosity, respectively. Specifically, the Curiosity-MRO link has for the first time on Mars relay links utilized frequency-agile operations, data rates up to 2.048 Mb/s, suppressed carrier modulation, and a new Adaptive Data Rate algorithm in which the return link data rate is optimally varied throughout the relay pass based on the actual observed link channel characteristics. In addition to the baseline surface relay support by ODY and MRO, the MEX relay service has been verified in several successful surface relay passes, and MEX now stands ready to provide backup relay support should NASA’s orbiters become unavailable for some period of time. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013 en_US
dc.subject Telecommunications en_US
dc.subject Curiosity en_US
dc.subject MSL en_US
dc.title Relay support for the Mars Science Laboratory mission en_US
dc.type Preprint en_US

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