Time series observations with the mid-infrared instrument (MIRI) on JWST

Sarah Kendrew, Daniel Dicken, Jeroen Bouwman, Macarena Garcia Marin, Thomas P. Greene, Pierre Olivier Lagage, Mike Ressler, Nicolas Crouzet, Laura Kreidberg, Natalie M. Batalha, Jacob L. Bean, Kevin B. Stevenson, Alistair Glasse, Gillian S. Wright, George H. Rieke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Time-variable phenomena such as transiting exoplanets will be a major science theme for the James Webb Space Telescope (JWST). For Guaranteed Time and Early Release Science Observations, over 500 hours of JWST time have been allocated to time series observations (TSOs) of transiting exoplanets. Several dedicated observing modes are available in the instrument suite, whose operations are specifically tailored to these challenging ob- servations. MIRI, the only JWST instrument covering the wavelength range longwards of 5 μm on JWST, will offer TSOs in two of its modes: the low resolution spectrometer, and the imager. In this paper we will describe these modes for MIRI, and discuss how they differ operationally from regular (non-TSO) observations. We will show performance estimates based on ground testing and modeling, discuss the most relevant detector effects for high precision (spectro-)photometry, and provide some guidelines for planning MIRI TSOs.

Original languageEnglish (US)
Title of host publicationSpace Telescopes and Instrumentation 2018
Subtitle of host publicationOptical, Infrared, and Millimeter Wave
EditorsGiovanni G. Fazio, Howard A. MacEwen, Makenzie Lystrup
ISBN (Print)9781510619494
StatePublished - 2018
EventSpace Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave - Austin, United States
Duration: Jun 10 2018Jun 15 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherSpace Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave
Country/TerritoryUnited States


  • Exoplanets
  • JWST
  • Mid-infrared
  • Space telescopes
  • Time series

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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