DRO GNSS Shadowing by Moon

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

The phenomenon where the Moon blocks Earth-direction GNSS signal sources during distant retrograde orbits. Shorter-period DROs experience GNSS shadowing for a larger fraction of their orbital period, increasing signal outage and significantly enlarging orbit determination error variance. This is a key factor limiting GNSS-only orbit determination performance on such orbits.

References

  • Analysis of Autonomous Orbit Determination in Various Near-Moon Periodic Orbits (Qi & Oguri, 2023)