laser-ranging

satelles is a lightweight, fully typed Python library for satellite tracking and observation planning: TLE parsing and validation, two-body orbit propagation, TEME, inertial, Earth-fixed and topocentric frame transforms, and visibility and Earth-shadow checks, with sidereal-time, polar-motion and geodesy models tested against ERFA and Vallado.

LibDegorasSLR (Degoras Project SLR Library): A C++ libre base library for Satellite Laser Ranging (SLR) software and hardware related developments.

Global Time Echoes: Optical-Domain Consistency Test via Satellite Laser Ranging — 11-year ILRS/CDDIS LAGEOS-1/2, Etalon, and LARES audit with independent ESA/ESOC SP3 orbit-product controls (r̄=−0.22) and two-branch altitude screening (y_tb~10⁻⁷), establishing an orthogonal optical bound on conformal clock excursions.

Compact 64-zone Time-of-Flight distance sensing breakout board based on the ST VL53L7CX sensor.

64-zone Time-of-Flight distance sensing Boardoza VL53L7CX-4 Time-of-Flight Breakout Board with I²C interface and onboard 5V-to-3.3V regulation.

5V-compatible multizone Time-of-Flight distance sensor breakout board based on the VL53L7CX with 64-zone ranging capability.

Compact 64-zone Time-of-Flight distance sensing breakout board based on the ST VL53L7CX sensor.

🔭 Validate the Temporal Equivalence Principle by analyzing 11 years of Satellite Laser Ranging data for precise optical tests.

A desktop Tkinter analysis tool for **Lunar Laser Ranging (LLR)** normal-point data. Fits the secular Earth–Moon recession (3.82 cm/yr), removes geometric variations (synodic + 18.6-year nodal), and derives a residual-RMS-based bound on the gravitational **Equivalence Principle** parameter |Δa/a| — currently 3 × 10⁻¹⁴ from APOLLO-era data.

Calibrated object size estimation using camera segmentation and laser ranging

Yet another cave survey instrument