Online data quality monitoring system at BESⅢ

The online Data Quality Monitoring (DQM) tool plays an important role in the data recording process of HEP experiments. The BESⅢ DQM collects data from the online data flow, reconstructs them with offline reconstruction software and automatically analyzes the reconstructed data with user-defined algorithms. The DQM software is a scalable distributed system. The monitored results are gathered and displayed in various formats, which provides the shifter with current run information that can be used to identify problems quickly. This paper gives an overview of the DQM system at BESⅢ.     

HXMT卫星的观测规划与数据处理

正HXMT卫星在轨运行期间,需要开展一系列的空间观测,以便对天文现象进行研究。空间探测涉及到多个过程,需要考虑多种因素的约束,本文将详细给出从观测任务的提出,到任务安排、数据处理及科学分析的全过程。一、引言硬X射线调制望远镜(HXMT)是我国首颗X射线天文卫星,卫星发射升空后,预期在轨工作四年。在此期间,为实现预期的科学目标,将开展一系列的空间X射线探测,通过对这些观测数据的处理分析,