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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.
dc.contributor.author Campbell, Donald B.
dc.contributor.author Carter, Lynn M.
dc.contributor.author Chandler, John F.
dc.contributor.author Giorgini, Jon D.
dc.contributor.author Margot, Jean-Luc
dc.contributor.author Morgang, Gareth A.
dc.contributor.author Nolan, Michael C.
dc.contributor.author Perillat, Phillip J.
dc.contributor.author Whitten, Jennifer L.
dc.date.accessioned 2019-08-23T02:01:00Z
dc.date.available 2019-08-23T02:01:00Z
dc.date.issued 2019
dc.identifier 0019-1035
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 19–23. <a href="https://doi.org/10.1016/j.icarus.2019.06.019">https://doi.org/10.1016/j.icarus.2019.06.019</a>.
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.
dc.format.extent 19–23
dc.publisher Academic Press Incorporated Elsevier Science
dc.relation.ispartof Icarus 332
dc.title The mean rotation rate of Venus from 29 years of Earth-based radar observations
dc.type article
sro.identifier.refworksID 32679
sro.identifier.itemID 152082
sro.description.unit NASM
sro.description.unit NASM-CEPS
sro.description.unit SAO
sro.identifier.doi 10.1016/j.icarus.2019.06.019
sro.identifier.url https://repository.si.edu/handle/10088/98622
sro.publicationPlace San Diego, California


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