Simultaneous Lunar Time Realization with a Single Orbital Clock
Published:Dec 28, 2025 22:28
•1 min read
•ArXiv
Analysis
This paper proposes a novel approach to realize both Lunar Coordinate Time (O1) and lunar geoid time (O2) using a single clock in a specific orbit around the Moon. This is significant because it addresses the challenges of time synchronization in lunar environments, potentially simplifying timekeeping for future lunar missions and surface operations. The ability to provide both coordinate time and geoid time from a single source is a valuable contribution.
Key Takeaways
- •Proposes a 'time aligned orbit' for a clock to simultaneously realize Lunar Coordinate Time and lunar geoid time.
- •The approach simplifies timekeeping for lunar missions.
- •Numerical simulations show promising results with desynchronization within acceptable limits.
- •The method is scalable for other terrestrial planets.
Reference
“The paper finds that the proper time in their simulations would desynchronize from the selenoid proper time up to 190 ns after a year with a frequency offset of 6E-15, which is solely 3.75% of the frequency difference in O2 caused by the lunar surface topography.”