Laser time-transfer facility and preliminary results from the CHOMPTT CubeSat mission

Ritz, Tyler; Coogan, Danielle; Conklin, John; Coffaro, Joseph; Serra, Paul; Nydam, Seth; Hanson, John; Nguyễn, Anh Ngọc; Priscal, Cedric; Stupl, Jan; Zufall, Adam

doi:10.1016/j.asr.2023.01.018

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…T2L2, a subsequent mission to LASSO [5] and part of the experimental equipment onboard the Jason-2 mission [7][8][9], conducted 1155 time transfer experiments during the satellite's flight at 1336 km, including 650 common-view comparison laps [10]. The current state-of-the-art for ground-to-space laser time-transfer is the Time-Transfer by Laser Link (T2L2) [11]. Extensive data processing confirmed the T2L2 approach's accuracy of 100 picoseconds and stability of more than 1 picosecond over 1000 s [12].…”

Section: Introductionmentioning

confidence: 99%

Improved Simulated Annealing Algorithm on the Design of Satellite Orbits for Common-View Laser Time Transfer

Xue,

Zhang,

Deng

et al. 2024

Remote Sensing

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Laser Time Transfer (LTT) has proven to be able to improve remote time transfer accuracy compared to microwave technology. The impact of satellite clock errors and atmospheric delays during LTT will be further reduced in the common-view mode. The challenge is presented as an optimization problem that is limited by satellite trajectories. This paper introduces an improved simulated annealing algorithm designed to maximize the common-view possibility among various station pairs within regional Satellite Laser Ranging (SLR) networks by optimizing satellite orbit trajectories. The study proposes a system model that integrates LTT principles with satellite visibility considerations. The simulated annealing algorithm is improved with new annealing strategies that incorporate control strategies, and modify the cooling function. Comparative simulation analyses demonstrate the effectiveness of the algorithm, resulting in a significant reduction in computation time by over 10 times. The optimized orbits exhibit common-view windows between 3.337 and 8.955 times longer than existing orbits. Further simulations are conducted to optimize the orbits, and common-view models are established for 45 pairs among 10 stations. The optimizations result in common-view times ranging from 6.183 to 60.633 min in the Asia-Pacific region and from 5.583 to 61.75 min in the Europe-to-Asia region. This can provide valuable references for designing satellite constellations.

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Section: Introductionmentioning

confidence: 99%

Improved Simulated Annealing Algorithm on the Design of Satellite Orbits for Common-View Laser Time Transfer

Xue,

Zhang,

Deng

et al. 2024

Remote Sensing

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A complete analysis of the link uncertainty budget for pulsed laser time transfer on China space station

Geng,

Wu,

Huang

et al. 2024

Advances in Space Research

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Mission-Oriented Conceptional Design of the Cube Satellite CNU Laser Unity Bus (CLUB) for Ground-Space Laser Research

Song,

Kim

et al. 2024

J. Space Technol. Appl.

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In this paper, we introduce the concept of the cube satellite Chungnam National University Laser Unity Bus (CLUB), which can provide an integrated infrastructure for various ground-space laser applications. With the advent of the new space era, the rapid expansion of space utilization has begun to reveal the limitations of conventional radio frequencies. As space missions diversify, lasers are garnering attention as a viable alternative. Between ground and space, lasers are applied in various fields including satellite laser ranging 연구논문

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Laser time-transfer facility and preliminary results from the CHOMPTT CubeSat mission

Cited by 3 publications

References 3 publications

Improved Simulated Annealing Algorithm on the Design of Satellite Orbits for Common-View Laser Time Transfer

Improved Simulated Annealing Algorithm on the Design of Satellite Orbits for Common-View Laser Time Transfer

A complete analysis of the link uncertainty budget for pulsed laser time transfer on China space station

Mission-Oriented Conceptional Design of the Cube Satellite CNU Laser Unity Bus (CLUB) for Ground-Space Laser Research

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