VDFS科学档案中数据的重新校准
Recalibration of Data in the VDFS Science Archives
摘要：
VDFS包括一个系统，用于对UKIRT上的WFCAM仪器和即将到来的VISTA望远镜拍摄的红外观测数据进行流水线处理和存档。这些包括迄今为止最大的近红外测量，如UKIDSS，它产生超过10^9行的TB大小的目录。当存储在关系数据库中的星表数据需要多次迭代的天体测量和光度测量重新校准时，如此大的数据量提出了性能挑战。在这里，我们提出了VDFS重新校准解决方案，将采用在WSA从即将到来的UKIDSS数据版本4和VSA从一开始。
英文摘要：
The VDFS comprises the system to pipeline process and archive the data from infrared observations taken by both the WFCAM instrument on UKIRT and the forthcoming VISTA telescope. These include the largest near-IR surveys to date, such as UKIDSS, which produce terabyte sized catalogues of over 10^9 rows. Such large data volumes present a performance challenge when the catalogue data, stored in a relational database, require many iterations of astrometric and photometric recalibration. Here we present the VDFS recalibration solution that will be employed in the WSA from the forthcoming UKIDSS Data Release 4 and VSA from its inception.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
