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Design requirements for the Wide-field Infrared Transient Explorer (WINTER)

Frostig, Danielle and Baker, John W. and Brown, Joshua and Burruss, Rick and Clark, Kristin and Furész, Gábor and Ganciu, Nicolae and Hinrichsen, Erik and Karambelkar, Viraj R. and Kasliwal, Mansi M. and Lourie, Nathan P. and Malonis, Andrew and Simcoe, Robert A. and Zolkower, Jeffry (2020) Design requirements for the Wide-field Infrared Transient Explorer (WINTER). In: Ground-based and Airborne Instrumentation for Astronomy VIII. Proceedings of SPIE. No.11447. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1144767. ISBN 9781510636811.

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The Wide-field Infrared Transient Explorer (WINTER) is a 1x1 degree infrared survey telescope under devel- opment at MIT and Caltech, and slated for commissioning at Palomar Observatory in 2021. WINTER is a seeing-limited infrared time-domain survey and has two main science goals: (1) the discovery of IR kilonovae and r-process materials from binary neutron star mergers and (2) the study of general IR transients, including supernovae, tidal disruption events, and transiting exoplanets around low mass stars. We plan to meet these science goals with technologies that are relatively new to astrophysical research: hybridized InGaAs sensors as an alternative to traditional, but expensive, HgCdTe arrays and an IR-optimized 1-meter COTS telescope. To mitigate risk, optimize development efforts, and ensure that WINTER meets its science objectives, we use model-based systems engineering (MBSE) techniques commonly featured in aerospace engineering projects. Even as ground-based instrumentation projects grow in complexity, they do not often have the budget for a full-time systems engineer. We present one example of systems engineering for the ground-based WINTER project, featuring software tools that allow students or staff to learn the fundamentals of MBSE and capture the results in a formalized software interface. We focus on the top-level science requirements with a detailed example of how the goal of detecting kilonovae flows down to WINTER’s optical design. In particular, we discuss new methods for tolerance simulations, eliminating stray light, and maximizing image quality of a fly’s-eye design that slices the telescope’s focus onto 6 non-buttable, IR detectors. We also include a discussion of safety constraints for a robotic telescope.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Paper
Kasliwal, Mansi M.0000-0002-5619-4938
Simcoe, Robert A.0000-0003-3769-9559
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). WINTER's construction is made possible by the National Science Foundation under MRI grant number AST-1828470. We also acknowledge significant support from the California Institute of Technology, the Caltech Optical Observatories, the Bruno Rossi Fund of the MIT Kavli Institute for Astrophysics and Space Research, and the MIT Department of Physics and School of Science.
Group:Astronomy Department
Funding AgencyGrant Number
Massachusetts Institute of Technology (MIT)UNSPECIFIED
Subject Keywords:Infrared Survey, Kilonova, Requirements Flowdown, Time domain survey
Series Name:Proceedings of SPIE
Issue or Number:11447
Record Number:CaltechAUTHORS:20210105-134821895
Persistent URL:
Official Citation:Danielle Frostig, John W. Baker, Joshua Brown, Rick Burruss, Kristin Clark, Gábor Fűrész, Nicolae Ganciu, Erik Hinrichsen, Viraj R. Karambelkar, Mansi M. Kasliwal, Nathan P. Lourie, Andrew Malonis, Robert A. Simcoe, and Jeffry Zolkower "Design requirements for the Wide-field Infrared Transient Explorer (WINTER)", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 1144767 (13 December 2020);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107331
Deposited By: Tony Diaz
Deposited On:05 Jan 2021 22:09
Last Modified:03 Jun 2021 21:25

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