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The Zwicky Transient Facility: Surveys and Scheduler
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
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Number of Authors: 142019 (English)In: Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, E-ISSN 1538-3873, Vol. 131, no 1000, article id 068003Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2019. Vol. 131, no 1000, article id 068003
Keywords [en]
methods: observational, surveys
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-169082DOI: 10.1088/1538-3873/ab0c2aISI: 000466748100001OAI: oai:DiVA.org:su-169082DiVA, id: diva2:1327372
Available from: 2019-06-19 Created: 2019-06-19 Last updated: 2019-06-19Bibliographically approved

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Feindt, UlrichGraham, Matthew J.Goobar, Ariel
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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