Results 91 to 100 of about 11,710 (202)

Inferring Long‐Term Geocenter Motion From Low‐Degree Gravity Field

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract Accurate determination of geocenter motion is essential not only for establishing a stable terrestrial reference frame, but also for deriving a complete picture of large‐scale global mass redistribution in the Earth system. For geophysical applications, reliable geocenter motions can be inferred from time‐variable gravity fields provided by ...
Yufeng Nie, Jianli Chen, Dongju Peng, Jin Li   +3 more
wiley   +1 more source

LARES/WEBER-SAT and the equivalence principle

, 2007
It has often been claimed that the proposed Earth artificial satellite LARES/WEBER-SAT-whose primary goal is, in fact, the measurement of the general relativistic Lense-Thirring effect at a some percent level-would allow to greatly improve, among (many ...
Blaser J. P., Cantone C., Ciufolini I., Ciufolini I., Ciufolini I., Ciufolini I. Currie D. G. Paolozzi A., Cugusi L., Cugusi L., Dell'Agnello S. Delle Monache G. Franceschi M. A. Paolozzi A., Iorio L., Iorio L., L. Iorio, Lense J., Nobili A. Comandi G. L. Doravari S. Lucchesi D. M. Maccarone F., Ries J. C., Ruffini R. J., Smith  B. R., Smith  B. R. Currie D. G., Van Patten R. A., Will C. M.   +19 more
core   +1 more source

Research on the Autonomous Orbit Determination of Beidou-3 Assisted by Satellite Laser Ranging Technology

Remote Sensing
The Beidou Global System (BDS-3) innovatively achieves autonomous navigation using inter-satellite links (ISL) across the entire constellation, but it still faces challenges such as the limitations of the prior constraint orbital accuracy and the overall
Wei Xiao, Zhengcheng Wu, Zongnan Li, Lei Fan, Shiwei Guo, Yilun Chen   +5 more
doaj   +1 more source

18.6-yr tidal variations in J2 observed from 48-yr satellite laser ranging (SLR)

Geophysical Journal International
SUMMARY Analysis of the 48-yr of satellite laser ranging data of multiple satellites shows that long-term variations in the Earth's dynamical oblateness represented by the second-degree zonal harmonic J2 is best characterized by the superposition of a quadratic trend, 10.5- and 18.6-yr variations.
openaire   +1 more source

Proposal for an Optical Test of the Einstein Equivalence Principle

, 2019
The Einstein Equivalence Principle (EEP) underpins all metric theories of gravity. Its key element is the local position invariance of non-gravitational experiments, which entails the gravitational red-shift.
Magnani, Piergiovanni, Schiavon, Matteo, Smith, Alexander R. H., Terno, Daniel R., Vallone, Giuseppe, Vedovato, Francesco, Villoresi, Paolo   +6 more
core   +1 more source

Precise Orbit Determination for ALOS [PDF]

The Advanced Land Observing Satellite (ALOS) has been developed to contribute to the fields of mapping, precise regional land coverage observation, disaster monitoring, and resource surveying.
Katagiri, Seiji, Kudo, Nobuo, Nakamura, Ryo, Nakamura, Shinichi   +3 more
core   +1 more source

Impact of SLR long-term mean range biases on SLRF2020-based orbits of altimetry satellites

Earth, Planets and Space
In 2022 and 2023, the new (2020) realizations of the International Terrestrial Reference System (ITRS), namely ITRF2020, JTRF2020, and DTRF2020, were published.
Sergei Rudenko, Mathis Bloßfeld, Alexander Kehm, Denise Dettmering, Julian Zeitlhöfler   +4 more
doaj   +1 more source

NASA Geodynamics Program [PDF]

Activities and achievements for the period of May 1983 to May 1984 for the NASA geodynamics program are summarized. Abstracts of papers presented at the Conference are inlcuded.

core   +1 more source

Precise Range Determination Using Laser Ranging Data of LAGEOS [PDF]

Journal of Astronomy and Space Sciences, 1993
Satellite laser ranging observation of LAGEOS ¥± has been performed using the SLR System at Sheshan Laser Ranging Station, Shanghai Observatory. And we obtained 1,838 observational points The observed range data is corrected by means of system delay ...
Kwang-Ryul Kim, Hyung-Gyu Kim, Hong-Sool Jang, Gunn-Ho Sohn, Kyu-Hong Choi   +4 more
doaj  

Geophysical interpretation of satellite laser ranging measurements of crustal movement in California [PDF]

As determined by satellite laser ranging the rate of contraction of a 900 kilometer baseline between sites located near Quincy in northern California and San Diego in southern California is about 61 to 65 mm/yr with a formal uncertainty of about 10 mm/yr.
Cohen, S. C.
core   +1 more source