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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 7.

Histograms of the standard deviations of GD-corrected residuals for all exposures within a single night. The blue bars represent the standard deviations along the X-axis, while the red bars represent those along the Y-axis.

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