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A Martian telecommunications network : UHF relay support of the Mars Exploration Rovers by the Mars Global Surveyor, Mars Odyssey, and Mars Express Orbiters.

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dc.contributor.author Edwards, Charles D., Jr.
dc.contributor.author Barbieri, A.
dc.contributor.author Brower, E.
dc.contributor.author Estabrook, P.
dc.contributor.author Gibbs, R.
dc.contributor.author Horttor, R.
dc.contributor.author Ludwinski, J.
dc.contributor.author Mase, R.
dc.contributor.author McCarthy, C.
dc.contributor.author Schmidt, R.
dc.contributor.author Theisinger, P.
dc.contributor.author Thorpe, T.
dc.contributor.author Waggoner, B.
dc.date.accessioned 2006-11-28T19:47:37Z
dc.date.available 2006-11-28T19:47:37Z
dc.date.issued 2004-10-04
dc.identifier.citation 55th International Astonautical Congress, Vancouver, Bristish Columbia, Canada, October 4-8, 2004. en
dc.identifier.clearanceno 04-2490
dc.identifier.uri http://hdl.handle.net/2014/40031
dc.description.abstract NASA and ESA have established an international network of Mars orbiters, outfitted with relay communications payloads, to support robotic exploration of the red planet. Starting in January, 2004, this network has provided the Mars Exploration Rovers with telecommunications relay services, significantly increasing rover engineering and science data return while enhancing mission robustness and operability. Augmenting the data return capabilities of their X-band direct-to-Earth links, the rovers are equipped with UHF transceivers allowing data to be relayed at high rate to the Mars Global Surveyor (MGS), Mars Odyssey, and Mars Express orbiters. As of 21 July, 2004, over 50 Gbits of MER data have been obtained, with nearly 95% of that data returned via the MGS and Odyssey UHF relay paths, allowing a large increase in science return from the Martian surface relative to the X-band direct-to-Earth link. The MGS spacecraft also supported high-rate UHF communications of MER engineering telemetry during the critical period of entry, descent, and landing (EDL), augmenting the very low-rate EDL data collected on the X-band direct-to-Earth link. Through adoption of the new CCSDS Proximity-1 Link Protocol, NASA and ESA have achieved interoperability among these Mars assets, as validated by a successful relay demonstration between Spirit and Mars Express, enabling future interagency cross-support and establishing a truly international relay network at Mars. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 2477395 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en
dc.subject Mars Exploration Rovers (MER) en
dc.subject Spirit en
dc.subject telecommunications en
dc.subject Mars relay infrastructure en
dc.subject mission overview
dc.subject critical event communications
dc.title A Martian telecommunications network : UHF relay support of the Mars Exploration Rovers by the Mars Global Surveyor, Mars Odyssey, and Mars Express Orbiters. en
dc.type Preprint en


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