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April 18, 2026Space WeatherOpen Access

The Pointing Error Due To Laser Propagation in Space Plasma for TianQin Gravitational Wave Detection

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Authors

SZShenwei ZhouWSWei SuSZShiyuan Zhou

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Overview

This work assesses the effect of plasma on pointing error in TianQin, suggesting a positive outlook for the mission.

Key Points

  • The research aims to quantify the impact of space plasma on laser pointing accuracy for the TianQin observatory.
  • Simulating plasma distribution using a magnetohydrodynamic model
  • Conducting ray-tracing calculations with the fourth-order Runge-Kutta method
  • Analyzing different orbital orientations of the TianQin spacecraft
  • Plasma-induced laser deflection angle and pointing eccentricity evaluated in picometers
  • Values found are significantly lower than TianQin's operational requirements
  • Impact of space plasma on pointing error is negligible under moderate space weather conditions

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/69e3207940886becb653f972https://doi.org/10.1029/2025sw004784
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