OPTICAM triple-channel astronomical image acquisition control software and external triggering synchronization system

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2023-12-01 DOI:10.1016/j.ascom.2023.100773

A. Castro , I. Zavala , E. Colorado , J. Herrera , N. Castro Segura , R. Michel , D. Altamirano , L. Altamirano-Dévora , G. Sierra , J. Echevarría , J. Hernández-Landa

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Abstract

We present the development of software to control the multichannel image acquisition process and the design of an external timing module (ETM) for the OPTICAM system (Castro et al., 2019). The ETM is used to generate high-speed synchronized pulses for OPTICAM’s three different sCMOS cameras and is based on an ESP32-S2 micro-controller. The graphical user interface (GUI) of this instrument is also described, which allows users to enter the configuration parameters of the observations and execute actions such as starting and stopping image acquisition sequences or initializing cameras. 3 mini PCs are in charge of reading each one of the cameras, respectively. The software and hardware tools presented here have been successfully implemented at the Observatorio Astronómico Nacional (OAN-SPM), Mexico. By analyzing the recorded image sequences, it is possible to perform high-precision multi-channel photometric measurements of astrophysical objects that exhibit high temporal variability, revealing information about periodicities, inter-band delays, and quasi-periodic oscillations.

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OPTICAM 三通道天文图像采集控制软件和外部触发同步系统

我们介绍了控制多通道图像采集过程的软件开发情况，以及 OPTICAM 系统外部定时模块 (ETM) 的设计情况（Castro 等人，2019 年）。ETM 用于为 OPTICAM 的三台不同 sCMOS 相机生成高速同步脉冲，基于 ESP32-S2 微控制器。此外，还介绍了该仪器的图形用户界面（GUI），用户可通过该界面输入观测配置参数，并执行启动和停止图像采集序列或初始化相机等操作。3 台微型 PC 分别负责读取每台相机的数据。本文介绍的软件和硬件工具已在墨西哥国家天文台（OAN-SPM）成功实施。通过分析记录的图像序列，可以对表现出高度时变性的天体进行高精度多通道光度测量，揭示有关周期性、波段间延迟和准周期振荡的信息。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.