Ground calibration and network of the first CATCH pathfinder

IF 2.7 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Experimental Astronomy Pub Date : 2024-10-31 DOI:10.1007/s10686-024-09963-7

Yiming Huang, Jingyu Xiao, Lian Tao, Shuang-Nan Zhang, Qian-Qing Yin, Yusa Wang, Zijian Zhao, Chen Zhang, Qingchang Zhao, Xiang Ma, Shujie Zhao, Heng Zhou, Xiangyang Wen, Zhengwei Li, Shaolin Xiong, Juan Zhang, Qingcui Bu, Jirong Cang, Dezhi Cao, Wen Chen, Siran Ding, Yanfeng Dai, Min Gao, Yang Gao, Huilin He, Shujin Hou, Dongjie Hou, Tai Hu, Guoli Huang, Yue Huang, Liping Jia, Ge Jin, Dalin Li, Jinsong Li, Panping Li, Yajun Li, Xiaojing Liu, Ruican Ma, Lingling Men, Xingyu Pan, Liqiang Qi, Liming Song, Xianfei Sun, Qingwen Tang, Liyuan Xiong, Yibo Xu, Sheng Yang, Yanji Yang, Yong Yang, Aimei Zhang, Wei Zhang, Yifan Zhang, Yueting Zhang, Donghua Zhao, Kang Zhao, Yuxuan Zhu

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Abstract

The Chasing All Transients Constellation Hunters (CATCH) space mission is focused on exploring the dynamic universe via X-ray follow-up observations of various transients. The first pathfinder of the CATCH mission, CATCH-1, was launched on June 22, 2024, alongside the Space-based multiband astronomical Variable Objects Monitor (SVOM) mission. CATCH-1 is equipped with narrow-field optimized Micro Pore Optics (MPOs) featuring a large effective area and incorporates four Silicon Drift Detectors (SDDs) in its focal plane. This paper presents the system calibration results conducted before the satellite integration. Utilizing the data on the performance of the mirror and detectors obtained through the system calibration, combined with simulated data, the ground calibration database can be established. Measuring the relative positions of the mirror and detector system, which were adjusted during system calibration, allows for accurate installation of the entire satellite. Furthermore, the paper outlines the operational workflow of the ground network post-satellite launch.

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第一个 CATCH 探路者的地面校准和网络

追逐所有瞬变天体星座猎手（CATCH）空间任务的重点是通过对各种瞬变天体进行X射线跟踪观测来探索动态宇宙。CATCH 任务的第一个探路者 CATCH-1 于 2024 年 6 月 22 日与天基多波段天文变星监测器（SVOM）任务同时发射。CATCH-1 配备了具有大有效面积的窄场优化微孔光学器件（MPO），并在焦平面上安装了四个硅漂移探测器（SDD）。本文介绍了卫星集成前进行的系统校准结果。利用系统校准获得的反射镜和探测器性能数据，结合模拟数据，可以建立地面校准数据库。通过测量在系统校准过程中调整的反射镜和探测器系统的相对位置，可以准确安装整个卫星。此外，论文还概述了卫星发射后地面网络的运行工作流程。

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来源期刊

Experimental Astronomy 地学天文-天文与天体物理

CiteScore

5.30

自引率

3.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Many new instruments for observing astronomical objects at a variety of wavelengths have been and are continually being developed. Furthermore, a vast amount of effort is being put into the development of new techniques for data analysis in order to cope with great streams of data collected by these instruments. Experimental Astronomy acts as a medium for the publication of papers of contemporary scientific interest on astrophysical instrumentation and methods necessary for the conduct of astronomy at all wavelength fields. Experimental Astronomy publishes full-length articles, research letters and reviews on developments in detection techniques, instruments, and data analysis and image processing techniques. Occasional special issues are published, giving an in-depth presentation of the instrumentation and/or analysis connected with specific projects, such as satellite experiments or ground-based telescopes, or of specialized techniques.