Results 21 to 30 of about 1,124 (172)
Validation of GPS Based Precise Orbits Using SLR Observations [PDF]
Journal of Astronomy and Space Sciences, 2009 In this study, the YLPODS (Yonsei Laser-ranging Precision Orbit Determination System) is developed for POD using SLR (Satellite Laser Ranging) NP (Normal Point) observations. The performance of YLPODS is tested using SLR NP observations of TOPEX/POSEIDON
Young-Rok Kim +7 more
doaj +1 more source
Space object identification via polarimetric satellite laser ranging [PDF]
Commun Eng, 2022 Low Earth orbits are becoming congested. The rapid identification and precise orbit determination of space objects is mandatory for space management. Satellite laser ranging (SLR) enables precise orbit determination by measuring the two-way photon travel
Bartels N +6 more
europepmc +2 more sources
地球与行星物理论评, 2023 Remote sensing satellite SiCH-2 from Ukraine was launched in 2011. At present, it has stopped working and is out of control, and it has been forecasted to become space debris by a two-line root (TLE) from the North American Air Defense Command (NORAD ...
Mingliang Long +6 more
doaj +1 more source
Global Geodetic Observing System in Poland 2019–2022 [PDF]
Advances in Geodesy and Geoinformation, 2023 This paper summarizes the contribution of Polish scientific units to the development of the Global Geodetic Observing System (GGOS) in recent years. We discuss the issues related to the integration of space geodetic techniques and co-location in space ...
Krzysztof Sosnica +2 more
doaj +1 more source
The progress of laser ranging technology at Shanghai Astronomical Observatory
Geodesy and Geodynamics, 2019 As an important station of International Laser Ranging Service (ILRS), Shanghai Astronomical Observatory (SHAO) has upgraded Satellite Laser Ranging (SLR) system with high repetition rate and achieved some technological progress.
Zhibo Wu +6 more
doaj +1 more source
Scientific Potential of the Geodetic Technique of Satellite Laser Ranging [PDF]
, 2023 For more than half a century, the technique of Satellite Laser Ranging (SLR), which measures the round-trip time-of-flight of ultra-short laser pulses emitted by a station to an artifical Earth orbiter, e.g., a satellite, and back to the station, is ...
Arnold, Daniel +3 more
core
Satellite laser ranging to GNSS-based Swarm orbits with handling of systematic errors [PDF]
, 2022 Satellite laser ranging (SLR) retroreflectors along with GNSS receivers are installed onboard numerous active low earth orbiters (LEOs) for the independent validation of GNSS-based precise orbit determination (POD) products.
Arnold, Daniel +5 more
core +1 more source
Satellite Laser Ranging in Egypt [PDF]
, 2015 The paper concerns on the satellite laser ranging (SLR) in Egypt. The three generations which can be loosely defined by their single shot root mean square precision, are discussed. The laser generators used at the Helwan half automatic and full automatic
Hanna, Y.S. +3 more
core +1 more source
Quality of Orbit Predictions for Satellites Tracked by SLR Stations
Remote Sensing, 2021 This study aims to evaluate and analyze the orbit predictions of selected satellites: geodetic, Global Navigational Satellite Systems (GNSS), and scientific low-orbiting, which are tracked by laser stations.
Joanna Najder, Krzysztof Sośnica
doaj +1 more source
Satellite laser ranging to GPS and GLONASS [PDF]
, 2015 Satellite laser ranging (SLR) to the satellites of the global navigation satellite systems (GNSS) provides substantial and valuable information about the accuracy and quality of GNSS orbits and allows for the SLR-GNSS colocation in space.
Dach, Rolf +14 more
core +1 more source