Pandeia: a multi-mission exposure time calculator for JWST and WFIRST

Klaus M. Pontoppidan; Timothy E. Pickering; Victoria G. Laidler; Karoline Gilbert; Christopher D. Sontag; Christine Slocum; Mark J. Sienkiewicz Jr.; Christopher Hanley; Nicholas M. Earl; Laurent Pueyo; Swara Ravindranath; Diane M. Karakla; Massimo Robberto; Alberto Noriega-Crespo; Elizabeth A. Barker

doi:10.1117/12.2231768

15 July 2016 Pandeia: a multi-mission exposure time calculator for JWST and WFIRST

Klaus M. Pontoppidan, Timothy E. Pickering, Victoria G. Laidler, Karoline Gilbert, Christopher D. Sontag, Christine Slocum, Mark J. Sienkiewicz Jr., Christopher Hanley, Nicholas M. Earl, Laurent Pueyo, Swara Ravindranath, Diane M. Karakla, Massimo Robberto, Alberto Noriega-Crespo, Elizabeth A. Barker

Author Affiliations +

Proceedings Volume 9910, Observatory Operations: Strategies, Processes, and Systems VI; 991016 (2016) https://doi.org/10.1117/12.2231768
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Pandeia is the exposure time calculator (ETC) system developed for the James Webb Space Telescope (JWST) that will be used for creating JWST proposals. It includes a simulation-hybrid Python engine that calculates the two-dimensional pixel-by-pixel signal and noise properties of the JWST instruments. This allows for appropriate handling of realistic point spread functions, MULTIACCUM detector readouts, correlated detector readnoise, and multiple photometric and spectral extraction strategies. Pandeia includes support for all the JWST observing modes, including imaging, slitted/slitless spectroscopy, integral field spectroscopy, and coronagraphy. Its highly modular, data-driven design makes it easily adaptable to other observatories. An implementation for use with WFIRST is also available.

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Klaus M. Pontoppidan, Timothy E. Pickering, Victoria G. Laidler, Karoline Gilbert, Christopher D. Sontag, Christine Slocum, Mark J. Sienkiewicz Jr., Christopher Hanley, Nicholas M. Earl, Laurent Pueyo, Swara Ravindranath, Diane M. Karakla, Massimo Robberto, Alberto Noriega-Crespo, and Elizabeth A. Barker "Pandeia: a multi-mission exposure time calculator for JWST and WFIRST", Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991016 (15 July 2016); https://doi.org/10.1117/12.2231768

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