LARES Satellite Thermal Forces and a Test of General Relativity

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dc.contributor.authorMatzner, Richard
dc.contributor.authorNguyen, Phuc
dc.contributor.authorBrooks, Jason
dc.contributor.authorCiufolini, Ignazio
dc.contributor.authorAntonio, Paolozzi
dc.contributor.authorPavlis, Erricos C.
dc.contributor.authorKoenig, Rolf
dc.contributor.authorRies, John
dc.contributor.authorGurzadyan, Vahe
dc.contributor.authorPenrose, Roger
dc.contributor.authorSindoni, Giampiero
dc.contributor.authorParis, Claudia
dc.contributor.authorKhachatryan, Harutyun
dc.contributor.authorMirzoyan, Sergey
dc.date.accessioned2020-10-08T17:41:11Z
dc.date.available2020-10-08T17:41:11Z
dc.date.issued2016-09-22
dc.description.abstractWe summarize a laser-ranged satellite test of frame dragging, a prediction of General Relativity, and then concentrate on the estimate of thermal thrust, an important perturbation affecting the accuracy of the test. The frame dragging study analysed 3.5 years of data from the LARES satellite and a longer period of time for the two LAGEOS satellites. Using the gravity field GGM05S obtained via the Grace mission, which measures the Earth's gravitational field, the prediction of General Relativity is confirmed with a 1-σ formal error of 0.002, and a systematic error of 0.05. The result for the value of the frame dragging around the Earth is μ = 0.994, compared to μ = 1 predicted by General Relativity. The thermal force model assumes heat flow from the sun (visual) and from Earth (IR) to the satellite core and to the fused silica reflectors on the satellite, and reradiation into space. For a roughly current epoch (days 1460 - 1580 after launch) we calculate an average along track drag of -0.50pm/sec 2en_US
dc.description.sponsorshipWe thank Victor Slabinski for very useful comments. This material is supported by the Texas Cosmology Center (TCC). TCC is supported by the College of Natural Sciences, the Department of Astronomy at the University of Texas at Austin, and the McDonald Observatory. We gratefully acknowledge Italian Space Agency grants I/034/12/0, I/034/12/1 and 2015-021-R.0 and the International Laser Ranging Service for providing high-quality laser ranging tracking of the LARES satellites. E.C. Pavlis acknowledges the support of NASA Grants NNX09AU86G and NNX14AN50G. R. Matzner acknowledges NASA Grant NNX09AU86G and J.C. Ries NASA Contract NNG12VI01C.en_US
dc.description.urihttps://ieeexplore.ieee.org/document/7573269en_US
dc.format.extent6 pagesen_US
dc.genreconference papers and proceedings preprintsen_US
dc.identifierdoi:10.13016/m2c5vy-rgbu
dc.identifier.citationR. Matzner et al., "LARES satellite thermal forces and a test of general relativity," 2016 IEEE Metrology for Aerospace (MetroAeroSpace), Florence, 2016, pp. 516-521, doi: 10.1109/MetroAeroSpace.2016.7573269.en_US
dc.identifier.urihttps://doi.org/10.1109/MetroAeroSpace.2016.7573269
dc.identifier.urihttp://hdl.handle.net/11603/19776
dc.language.isoen_USen_US
dc.publisherIEEEen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rights©2016 IEEE
dc.titleLARES Satellite Thermal Forces and a Test of General Relativityen_US
dc.typeTexten_US

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