The Locus Algorithm Quasar Pointings Catalogue

Presented here is a Catalogue of Pointings for Optimal Differential Photometry for 23,779 Quasars presented in the form of a CSV file. A total of 40,000 quasars were analysed using the Locus Algorithm (Creaner et al, 2019), and the results of that analysis are presented here. A paper detailing this work has been submitted to MNRAS and is available in preprint on arxiv.org. Instructions on how to use the data are contained in readme.md. An SQL script to identify the reference stars is also presented. Also given here are source files containing the fits and csv files generated by the grid jobs in a .zip archive.<br>本数据集以逗号分隔值（Comma-Separated Values, CSV）文件格式，提供了针对23779个类星体的最优差分测光指向星表。本研究共利用Locus算法（Creaner等人，2019年）对40000个类星体开展分析，本次发布的即为该分析的成果。详细阐述本研究工作的论文已提交至《皇家天文学会月报》（Monthly Notices of the Royal Astronomical Society, MNRAS），并在arxiv.org平台发布了预印本。数据使用说明详见readme.md文件。本次发布还附带了用于识别参考星的结构化查询语言（Structured Query Language, SQL）脚本。压缩归档文件（.zip）中还包含了由网格作业生成的fits（Flexible Image Transport System）文件与CSV文件等源文件。