The Zwicky Transient Facility: Surveys and Scheduler

被引：823

作者：

Bellm, Eric C. ^{[1
]}

Kulkarni, Shrinivas R. ^{[2
]}

Barlow, Tom ^{[2
]}

Feindt, Ulrich ^{[3
]}

Graham, Matthew J. ^{[2
]}

Goobar, Ariel ^{[3
]}

Kupfer, Thomas ^{[2
,4
,5
]}

Ngeow, Chow-Choong ^{[6
]}

Nugent, Peter ^{[7
,8
]}

Ofek, Eran ^{[9
,10
]}

Prince, Thomas A. ^{[2
]}

Riddle, Reed ^{[11
]}

Walters, Richard ^{[11
]}

Ye, Quan-Zhi ^{[2
,12
]}

机构：

[1] Univ Washington, Dept Astron, DIRAC Inst, 3910 15th Ave NE, Seattle, WA 98195 USA

[2] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA

[3] Stockholm Univ, AlbaNova, Oskar Klein Ctr, Dept Phys, SE-10691 Stockholm, Sweden

[4] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

[5] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[6] Natl Cent Univ, Inst Astron, Taoyuan 32001, Taiwan

[7] Lawrence Berkeley Natl Lab, Computat Sci Dept, 1 Cyclotron Rd,MS 50B 4206, Berkeley, CA 94720 USA

[8] Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA

[9] Weizmann Inst Sci, Benoziyo Ctr Astrophys, IL-76100 Rehovot, Israel

[10] Weizmann Inst Sci, Helen Kimmel Ctr Planetary Sci, IL-76100 Rehovot, Israel

[11] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA

[12] CALTECH, IPAC, 1200 E Calif Blvd, Pasadena, CA 91125 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2019年 / 131卷 / 1000期

基金：

美国国家科学基金会; 以色列科学基金会;

关键词：

methods: observational; surveys;

D O I：

10.1088/1538-3873/ab0c2a

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：13

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