Tootfinder

Advancing Lunar Communication through Inter-domain Space Networks and Dynamic Orchestration
Selen Gecgel Cetin, Baris Donmez, Gunes Karabulut Kurt
https://arxiv.org/abs/2507.15483

Advancing Lunar Communication through Inter-domain Space Networks and Dynamic Orchestration
The reawakened era of lunar exploration is defined by a strategic shift from temporary visits to a sustained international and commercial presence, resulting in an unprecedented demand for a robust and continuously available communication infrastructure. The conventional direct-to-Earth communication architecture relies on limited and oversubscribed deep space networks, which are further challenged by the radiative environment and insufficient visibility in certain areas of the cislunar domain.…

Cislunar Resonant Transport and Heteroclinic Pathways: From 3:1 to 2:1 to L1
Bhanu Kumar, Anjali Rawat, Aaron J. Rosengren, Shane D. Ross
https://arxiv.org/abs/2509.12675 https:…

Cislunar Resonant Transport and Heteroclinic Pathways: From 3:1 to 2:1 to L1
Understanding the dynamical structure of cislunar space beyond geosynchronous orbit is critical for both lunar exploration and for high-Earth-orbiting trajectories. In this study, we investigate the role of mean-motion resonances and their associated heteroclinic connections in enabling natural semi-major axis transport in the Earth-Moon system. Working within the planar circular restricted three-body problem, we compute and analyze families of periodic orbits associated with the interior 4:1, …

$\mathcal{H}_\infty$ Optimal Navigation in the Cislunar Space with LFT Models
Tanay Kumar, Raktim Bhattacharya
https://arxiv.org/abs/2509.06317 https://arx…

$\mathcal{H}_\infty$ Optimal Navigation in the Cislunar Space with LFT Models
Navigation in the cislunar domain presents significant challenges due to chaotic and unmodeled dynamics, as well as state-dependent sensor errors. This paper develops a robust estimation framework based on Linear Fractional Transformation (LFT) models, and state estimation in $\mathcal{H}_\infty$ and $μ$ synthesis framework to address these challenges. The cislunar dynamics are embedded into an LFT form that captures nonlinearities in the gravitational model and state-dependent sensor errors a…

Phased-Array Laser Power Beaming from Cislunar Space to the Lunar Surface
Slava G. Turyshev
https://arxiv.org/abs/2508.10855 https://arxiv.org/pdf/2508.108…

Phased-Array Laser Power Beaming from Cislunar Space to the Lunar Surface
This paper presents a rigorous analytical framework for quantitatively evaluating space-based laser power beaming from lunar-orbiting spacecraft to surface receivers, addressing the critical need for continuous, high-density energy to sustain lunar exploration and habitation. The framework integrates physics-based models of spacecraft photovoltaic generation, precise orbital geometries, time-dependent link availability and slant-range variations, coherent beam propagation (including transmitter…

Modeling the Doppler Shift in Cislunar Environment with Gaussian Mixture Models
Baris Donmez, Sebastien Loranger, Gunes Karabulut Kurt
https://arxiv.org/abs/2509.07134 https://

Modeling the Doppler Shift in Cislunar Environment with Gaussian Mixture Models
This study investigates the RF-based Doppler shift distribution characterization of the Lunar South Pole (LSP) based inter-satellite link (ISL) in varying inclination. Doppler shift in parts per million (ppm) is determined and analyzed, as it provides an independence from the carrier frequency. Due to unknown relative velocity states duration, the Gaussian Mixture Model (GMM) is found to be the best fitting distribution for ISLs with $1^\circ$ inclination interval Doppler shift with respect to …

High-Precision Relativistic Time Scales for Cislunar Navigation
Slava G. Turyshev
https://arxiv.org/abs/2507.22145 https://arxiv.org/pdf/2507.22145

High-Precision Relativistic Time Scales for Cislunar Navigation
We present a unified post-Newtonian framework for relativistic timing and coordinate transformations covering six time scales (TCB, TCG, TT, TDB, TCL, TL) and three reference systems (BCRS, GCRS, LCRS). Extending the IAU conventions, we define a Lunicentric Celestial Reference System (LCRS) metric that retains all contributions above a fractional threshold of 5x10^{-18} and timing terms above 0.1 ps by expanding the lunar gravity field to spherical-harmonic degree l=9 with Love number variation…

Optimal Impulsive Control of Cislunar Relative Motion using Reachable Set Theory
Matthew Hunter, Walter J. Manuel, Simone D'Amico
https://arxiv.org/abs/2507.21425 https://…

Optimal Impulsive Control of Cislunar Relative Motion using Reachable Set Theory
This work presents the first application of the state-of-the-art Koenig-D'Amico reachable set theory solver to cislunar, chaotic relative motion in the Circular-Restricted Three-Body Problem (CR3BP). The relative motion dynamics of two spacecraft, a chief and a deputy, in the CR3BP are formulated as a Linear Time-Variant (LTV) system, allowing the solver to find an optimal impulsive control maneuver plan. This methodology demonstrates robust and accurate control performance for both small and l…

A dynamical coherency gate for state recovery: Statistical requiem for the long arc of cislunar orbital mis-prediction
Binyamin Stivi, Vishnuu Mallik, Lamberto Dell'Elce, Aaron J. Rosengren
https://arxiv.org/abs/2506.22748

A dynamical coherency gate for state recovery: Statistical requiem for the long arc of cislunar orbital mis-prediction
We present a statistically grounded methodology for recovering physically consistent initial conditions from historical two-line element sets (TLEs), enabling accurate long-arc trajectory reconstruction for distant and highly eccentric Earth satellites. The approach combines numerical averaging of osculating orbital elements with Gaussian-mixture-model (GMM) filtering with robust fallback strategies to isolate a dynamically coherent subset of mean elements at a common reference epoch. From this…

A comparative study of time on Mars with lunar and terrestrial clocks
Neil Ashby, Bijunath R. Patla
https://arxiv.org/abs/2507.21388 https://arxiv.org/pdf/…

A comparative study of time on Mars with lunar and terrestrial clocks
As space exploration extends into cislunar space and further towards Mars, understanding the relativistic effects on clocks on Mars, particularly in relation to multibody gravitational influences, becomes increasingly important for accurate clock synchronization. This study estimates clock rates on Mars and compares them to those on the Moon and Earth. We find that, on average, clocks on Mars tick faster than those on the Earth's geoid by 477 microseconds per day, with a variation of 226 micros…

Families of Transfers from circular low Earth orbit to Distant Prograde Orbit around the Moon
Shuyue Fu, Di Wu, Yihan Peng, Peng Shi, Shengping Gong
https://arxiv.org/abs/2508.01769

Families of Transfers from circular low Earth orbit to Distant Prograde Orbit around the Moon
Distant prograde orbits around the Moon exhibit remarkable potential for practical applications such as cislunar surveillance activities and low-energy transfers due to their instability. Previous works on transfers from circular low Earth orbit to distant prograde orbits mainly focused on construction methods based on dynamical structures, lacking a comprehensive analysis of the solution space of this transfer scenario. This paper investigates the solution space and identifies families of tran…