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Proceedings Paper

20 years of Hubble Space Telescope optical modeling using Tiny Tim
Author(s): John E. Krist; Richard N. Hook; Felix Stoehr
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Paper Abstract

Point spread function (PSF) models are critical to Hubble Space Telescope (HST) data analysis. Astronomers unfamiliar with optical simulation techniques need access to PSF models that properly match the conditions of their observations, so any HST modeling software needs to be both easy-to-use and have detailed information on the telescope and instruments. The Tiny Tim PSF simulation software package has been the standard HST modeling software since its release in early 1992. We discuss the evolution of Tiny Tim over the years as new instruments and optical properties have been incorporated. We also demonstrate how Tiny Tim PSF models have been used for HST data analysis. Tiny Tim is freely available from

Paper Details

Date Published: 21 September 2011
PDF: 16 pages
Proc. SPIE 8127, Optical Modeling and Performance Predictions V, 81270J (21 September 2011); doi: 10.1117/12.892762
Show Author Affiliations
John E. Krist, Consultant (United States)
Richard N. Hook, European Southern Observatory (Germany)
Felix Stoehr, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 8127:
Optical Modeling and Performance Predictions V
Mark A. Kahan, Editor(s)

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