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The mean rotation rate of Venus from 29 years of Earth-based radar observations

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dc.contributor.author Campbell, Bruce A. en
dc.contributor.author Campbell, Donald B. en
dc.contributor.author Carter, Lynn M. en
dc.contributor.author Chandler, John F. en
dc.contributor.author Giorgini, Jon D. en
dc.contributor.author Margot, Jean-Luc en
dc.contributor.author Morgang, Gareth A. en
dc.contributor.author Nolan, Michael C. en
dc.contributor.author Perillat, Phillip J. en
dc.contributor.author Whitten, Jennifer L. en
dc.date.accessioned 2019-08-23T02:01:00Z
dc.date.available 2019-08-23T02:01:00Z
dc.date.issued 2019
dc.identifier.citation Campbell, Bruce A., Campbell, Donald B., Carter, Lynn M., Chandler, John F., Giorgini, Jon D., Margot, Jean-Luc, Morgang, Gareth A., Nolan, Michael C., Perillat, Phillip J., and Whitten, Jennifer L. 2019. "<a href="https://repository.si.edu/handle/10088/98622">The mean rotation rate of Venus from 29 years of Earth-based radar observations</a>." <em>Icarus</em>. 332:19&ndash;23. <a href="https://doi.org/10.1016/j.icarus.2019.06.019">https://doi.org/10.1016/j.icarus.2019.06.019</a> en
dc.identifier.issn 0019-1035
dc.identifier.uri https://hdl.handle.net/10088/98622
dc.description.abstract We measured the length of the Venus sidereal day (LOD) from Earth-based radar observations collected from 1988 to 2017, using offsets in surface feature longitudes from a prediction based on a 243.0185d period derived from analysis of Magellan mission images over a 487-day interval. We derive a mean LOD over 29 years of 243.0212 +/- 0.0006d. Our result is consistent with earlier estimates (but with smaller uncertainties), including those based on offsets between Venus Express infrared mapping data and Magellan topography that suggest a mean LOD of 243.0228 +/- 0.002d over a 16-year interval. We cannot detect subtle, short-term oscillations in rate, but the derived value provides an excellent fit to observational data over a 29-year period that can be used for future landing-site planning. en
dc.relation.ispartof Icarus en
dc.title The mean rotation rate of Venus from 29 years of Earth-based radar observations en
dc.type Journal Article en
dc.identifier.srbnumber 152082
dc.identifier.doi 10.1016/j.icarus.2019.06.019
rft.jtitle Icarus
rft.volume 332
rft.spage 19
rft.epage 23
dc.description.SIUnit NASM en
dc.description.SIUnit NASM-CEPS en
dc.description.SIUnit SAO en
dc.citation.spage 19
dc.citation.epage 23


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