ALeRCE Features Release

This is the first release of the features computed by the ALeRCE community alert broker (https://alerce.science) for objects from the Zwicky Transient Facility (ZTF) public stream. Details on how and when features are computed for a given object can be found in Forster et al., 2021, and Sanchez-Saez et al., 2021. All features and aggregated properties for ZTF objects were extracted from the ALeRCE PostgreSQL database on May 3rd, 2024.本数据集系ALeRCE社区警报经纪商（alert broker，https://alerce.science）针对兹威基瞬态设施（Zwicky Transient Facility, ZTF）公开数据流中的天体所计算得到的特征的首次发布版本。针对单个天体的特征计算方式与计算时机的详细说明，可参阅Forster等人2021年以及Sanchez-Saez等人2021年的研究成果。本数据集涵盖的全部ZTF天体特征与聚合属性，均于2024年5月3日从ALeRCE的PostgreSQL数据库中提取得到。