The Zwicky Transient Facility: Surveys and Scheduler
The Zwicky Transient Facility: Surveys and Scheduler
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DOI：
10.1088/1538-3873/ab0c2a
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发表时间：
2019-06-01
影响因子：
3.5
通讯作者：
Ye, Quan-Zhi
中科院分区：
文献类型：
--
作者：
Bellm, Eric C.;Kulkarni, Shrinivas R.;Ye, Quan-Zhi
我们提出了一种新的算法调度观测的时域成像调查。我们的整数线性规划方法通过将目标分配给时间块来优化整个夜晚的观测计划，从而严格控制每个字段获得的曝光次数并最大限度地减少滤波器的变化。随后的优化步骤最小化每次观察之间的转换时间。我们的优化指标自洽权重贡献随时间变化的气团，看到，天空亮度，以最大限度地提高瞬态发现率。我们描述了该算法的实施调查的Zwicky瞬态设施，并提出其在天空中的性能。
We present a novel algorithm for scheduling the observations of time-domain imaging surveys. Our integer linear programming approach optimizes an observing plan for an entire night by assigning targets to temporal blocks, enabling strict control of the number of exposures obtained per field and minimizing filter changes. A subsequent optimization step minimizes slew times between each observation. Our optimization metric self-consistently weights contributions from time-varying airmass, seeing, and sky brightness to maximize the transient discovery rate. We describe the implementation of this algorithm on the surveys of the Zwicky Transient Facility and present its on-sky performance.