GRACE and GRACE-FO Related Publications (no abstracts)

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A 1% Measurement of the Gravitomagnetic Field of the Earth with Laser-Tracked Satellites

Lucchesi, David, Visco, Massimo, Peron, Roberto, Bassan, Massimo, Pucacco, Giuseppe, Pardini, Carmen, Anselmo, Luciano, and Magnafico, Carmelo, 2020. A 1% Measurement of the Gravitomagnetic Field of the Earth with Laser-Tracked Satellites. Universe, 6(9):139, doi:10.3390/universe6090139.

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@ARTICLE{2020Univ....6..139L,
       author = {{Lucchesi}, David and {Visco}, Massimo and {Peron}, Roberto and {Bassan}, Massimo and {Pucacco}, Giuseppe and {Pardini}, Carmen and {Anselmo}, Luciano and {Magnafico}, Carmelo},
        title = "{A 1\% Measurement of the Gravitomagnetic Field of the Earth with Laser-Tracked Satellites}",
      journal = {Universe},
     keywords = {gravitomagnetism, Lense-Thirring precession, LAGEOS, time dependent gravity field, GRACE mission},
         year = 2020,
        month = aug,
       volume = {6},
       number = {9},
          eid = {139},
        pages = {139},
     abstract = "{A new measurement of the gravitomagnetic field of the Earth is
        presented. The measurement has been obtained through the careful
        evaluation of the Lense-Thirring (LT) precession on the combined
        orbits of three passive geodetic satellites, LAGEOS, LAGEOS II,
        and LARES, tracked by the Satellite Laser Ranging (SLR)
        technique. This general relativity precession, also known as
        frame-dragging, is a manifestation of spacetime curvature
        generated by mass-currents, a peculiarity of Einstein's theory
        of gravitation. The measurement stands out, compared to previous
        measurements in the same context, for its precision
        (≃7.4{\texttimes}10‑3, at a 95\% confidence level) and accuracy
        (≃16{\texttimes}10‑3), i.e., for a reliable and robust
        evaluation of the systematic sources of error due to both
        gravitational and non-gravitational perturbations. To achieve
        this measurement, we have largely exploited the results of the
        GRACE (Gravity Recovery And Climate Experiment) mission in order
        to significantly improve the description of the Earth's
        gravitational field, also modeling its dependence on time. In
        this way, we strongly reduced the systematic errors due to the
        uncertainty in the knowledge of the Earth even zonal harmonics
        and, at the same time, avoided a possible bias of the final
        result and, consequently, of the precision of the measurement,
        linked to a non-reliable handling of the unmodeled and
        mismodeled periodic effects.}",
          doi = {10.3390/universe6090139},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2020Univ....6..139L},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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