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A Robust Geometric Distortion Solution for the Main Survey Camera of CSST

  • Authors: Yibo Yan, 一波 闫, You Wu, 优 吴, Jundan Nie, 俊丹 聂, Tianmeng Zhang, 天萌 张, Chao Liu, 超 刘, Zhang Ban, 章 班, Zihuang Cao, 子皇 曹, Wei Du, 薇 杜, Yuedong Fang, 越东 方, Yi Hu, 义 胡, Guoliang Li, 国亮 李, Xiaobo Li, 晓波 李, Chenxiaoji Ling, 晨晓骥 凌, Jiaqi Lin, 家琪 林, Dezi Liu, 德子 刘, Yu Luo, 煜 罗, Bin Ma, 斌 马, Xianmin Meng, 宪民 孟, Juanjuan Ren, 娟娟 任, Li Shao, 立 邵, Hao Tian, 浩 田, Chengliang Wei, 成亮 韦, Peng Wei, 鹏 魏, Shoulin Wei, 守林 卫, Yun-Ao Xiao, 云奥 肖, Zhou Xie, 洲 谢, Su Yao, 苏 姚, Yan Yu, 彦 吁, Shengwen Zhang, 圣文 张, Xin Zhang, 鑫 张, Bowei Zhao, 博伟 赵, Zhimin Zhou, 志民 周, Hu Zou, 虎 邹

Yibo Yan et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 6.

The GD maps for the uncorrected (left) and GD solution accuracy of WPDC-2P result (right). All positional offsets are compared with the mock reference catalog for 25 different fields observed with the same g-1 detector. In each panel, the two-dimensional residual patterns are averaged over 20 × 20 grid cells and magnified by factors of 5 and 200, respectively. The surrounding four subpanels display the δx and δy residuals as functions of the detector coordinates (XPSF, YPSF), where only 5% of the residual sample is randomly selected for clarity.

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