Results 31 to 40 of about 438 (141)

Determination of Earth's Static Gravity Field Using Quantum Gravity Satellites at Very Low Earth Orbit

Earth and Space Science, Volume 13, Issue 10, October 2026.
Abstract Very Low Earth Orbit (VLEO) satellite platforms and quantum‐optical sensing technologies may provide new observation approaches for improving Earth's static gravity field models. This study conceptually assesses their potential contribution through a two‐tier closed‐loop simulation framework.
Wenming Chen, Hao Zhou, Yanbin Zhao, Zhu Zhu, Shuyun Zheng, Zhicai Luo, Zebing Zhou   +6 more
wiley   +1 more source

Validation of Geostationary Earth Orbit Satellite Ephemeris Generated

Journal of Astronomy and Space Sciences, 2018
This study presents the generation and accuracy assessment of predicted orbital ephemeris based on satellite laser ranging (SLR) for geostationary Earth orbit (GEO) satellites.
Hyungjik Oh, Eunseo Park, Hyung-Chul Lim, Sang-Ryool Lee, Jae-Dong Choi, Chandeok Park   +5 more
doaj   +1 more source

Combination of precise orbit solutions for Sentinel-3A using Variance Component Estimation [PDF]

Advances in Geosciences, 2019
In this article we analyze the benefit of computing a combined solution from individual orbit solutions for the low Earth orbiting satellite Sentinel-3A.
C. Kobel, D. Arnold, A. Jäggi
doaj   +1 more source

Precise Orbit Determination and Accuracy Analysis for BDS-3 Satellites Using SLR Observations

Remote Sensing, 2023
Satellite laser ranging (SLR) is the space geodetic technique with the highest degree of range, measuring precision and distances right down to the millimeter level.
Zicong An, Kai Shao, Defeng Gu, Chunbo Wei, Zheyu Xu, Lisheng Tong, Jubo Zhu, Jian Wang, Daoping Liu   +8 more
doaj   +1 more source

Mapping Global GNSS Vertical Velocities to Solid Earth Figure Change

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The Earth's figure evolves in response to glacial isostatic adjustment (GIA), surface‐mass redistribution, and rotational and mantle‐driven processes. While temporal changes in the geoid's flattening are monitored through low‐degree gravity field harmonics, the geometric response of the solid Earth can be assessed independently from GNSS ...
C. Kotsakis
wiley   +1 more source

Omnidirectional Ultra‐Broadband Cu/TiO2 Metasurface Absorbers for High‐Efficiency Solar Thermal Conversion and Photothermal Plasmon‐Driven Catalysis

Advanced Optical Materials, Volume 14, Issue 31, August 21, 2026.
Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi, HaoYu Zhang, Narendra Chaulagain, Edgar Acosta, Nazir P. Kherani   +4 more
wiley   +1 more source

Orbit Determination of Korean GEO Satellite Using Single SLR Sensor

Sensors, 2018
Geostationary Earth Orbit (GEO)-Korea Multi-Purpose Satellite (KOMPSAT)-2B (GK-2B) is a Korean geostationary Earth orbit (GEO) satellite that is scheduled to be launched in 2020 for meteorological and ocean monitoring.
Hyungjik Oh, Eunseo Park, Hyung-Chul Lim, Chandeok Park   +3 more
doaj   +1 more source

Autonomous Planning Algorithm for Satellite Laser Ranging Tasks Based on Rolling Horizon Optimization Framework

Remote Sensing, 2023
Observation task planning is a key issue and the first step in the development of automated Satellite Laser Ranging (SLR) systems. Aiming at the problem of dynamic change of cloud cover during SLR operation, this paper proposes an autonomous mission ...
Zequn Lv, Cunbo Fan, Ning An, Jian Gao, Haitao Zhang, Lei Ma, Guanyu Wen, Xue Dong, Chenzhi Liu   +8 more
doaj   +1 more source

Empirical Assessment of Storm‐Time Thermospheric Density Inversion Methods From LEO POD Data

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Thermospheric mass density is one of the largest sources of operational uncertainty for spacecraft in low Earth orbit, particularly during geomagnetic storms. The growing population of Global Navigation Satellite System‐equipped satellites presents a data set of opportunity: precise orbit determination (POD) data streams can be used to ...
Charles Constant, Indigo Brownhall, Anasuya Aruliah, Marek Ziebart, Santosh Bhattarai   +4 more
wiley   +1 more source

Omni-SLR: a compact, low-cost, and multi-purpose satellite laser ranging system

Journal of Geodesy
Abstract We present Omni-SLR, a compact and low-cost satellite laser ranging (SLR) system developed to explore the minimum configuration needed to achieve useful geodetic performance. The system was built almost entirely from commercially available components and designed for easy transport, low-power consumption, and single-photon ...
Toshimichi Otsubo, Hiroshi Araki, Yusuke Yokota, Kenji Kouno, Mihoko Kobayashi, Yuichi Aoyama, Takehiro Matsumoto, Junichi Nakajima, Haruna Furui, Takahiro Wakasugi   +9 more
openaire   +1 more source