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WFST Astrometric Calibration. I. Modeling Global Geometric Distortion with Zernike Polynomials

  • Authors: Chao Yang, Min Fang, Xian Zhong Zheng, Guoliang Li, Binyang Liu, Zheng Lou, Zhen Wan, Miaomiao Zhang, Tian-Rui Sun, Lulu Fan, Xiaoling Zhang, Xu Kong, Yongquan Xue, Wen Zhao, Bin Li, Wentao Luo, Feng Li, Wei Liu, Jian Wang, Hongfei Zhang, Hao Liu, Qinfeng Zhu, Hairen Wang, Dazhi Yao

Chao Yang et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 5.

Global GD models and their difference maps for two pairs of consecutive exposures in the 2016HO3 field. Panels (a) and (b) show similar GD models in one pair of consecutive exposures, with panel (c) presenting their difference. Panels (d) and (e) display significantly different GD models in another pair of exposures, with panel (f) showing their difference.

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