亮度、颜色、偏振：Gorizont-6 卫星的多仪器观测活动
摘要
我们报告了对已失效的地球同步卫星 Gorizont-6 进行 coordinated multi-instrument 光度和偏振研究。该观测活动将宽视场多颜色观测与 simultaneous multi-site photometry 和 linear polarimetry 结合起来。我们的结果表明，combined simultaneous colour and polarimetric measurements 有助于打破 fundamental spin period 与其谐波之间的混淆，使 light curve features 可与 specific reflecting surfaces 关联。使用带 bootstrap resampling 的 phase-dispersion minimisation，我们随后测量了横跨六个历元、九个月duration 的 rotation period steady increasing，well described by 被 Yarkovsky O'Keefe Radzievskii Paddack (YORP) 驱动的 spin-down 的 damped exponential curve。几何分析的 multi-site observations 提供了基于 paired glint events 的 spin-axis orientation 的 additional constraints。总体而言，multi-colour photometry 相较于 single-band data 提供了 efficient, robust period measurements，而 polarimetry 提供了决定性约束，实现 unambiguous rotation-state determination，凸显了 combined photometric-polarimetric 策略对 characterising defunct satellites 的价值。
引用
@article{arxiv.2603.29534,
title = {Brightness, Colour, Polarisation: A Multi-Instrument Observation Campaign of the Gorizont-6 Satellite},
author = {Robert J. S Airey and Paul Chote and Klaas Wiersema and Ioannis Apergis and James McCormac and James A. Blake and Benjamin F. Cooke and Isobel S. Lockley and Peter J. Wheatley and Daniel Bayliss and Samuel Gill and Christopher A. Watson and Stefano Covino and Frans Snik and Jon Marchant and Justyn Maund and Brooke Simmons and Iain A. Steele},
journal= {arXiv preprint arXiv:2603.29534},
year = {2026}
}
备注
14 pages, 8 figures, Accepted to Advances in Space Research