CaltechAUTHORS
  A Caltech Library Service

Analysis of Normalized Point Source Sensitivity as a performance metric for the Thirty Meter Telescope

Seo, Byoung-Joon and Nissly, Carl and Angeli, George and Ellerbroek, Brent and Nelson, Jerry and Sigrist, Norbert and Troy, Mitchell (2008) Analysis of Normalized Point Source Sensitivity as a performance metric for the Thirty Meter Telescope. In: Modeling, Systems Engineering, and Project Management for Astronomy III. Proceedings of SPIE. No.7017. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 70170T. ISBN 9780819472274. http://resolver.caltech.edu/CaltechAUTHORS:20180629-134349089

[img] PDF - Published Version
See Usage Policy.

1051Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20180629-134349089

Abstract

We investigate a new metric, Normalized Point Source Sensitivity (PSSN), for characterizing the seeing limited performance of the Thirty Meter Telescope. As the PSSN metric is directly related to the photometric error of background limited observations, it truly represents the efficiency loss in telescope observing time. The PSSN metric properly accounts for the optical consequences of wavefront spatial frequency distributions due to different error sources, which makes it superior to traditional metrics such as the 80% encircled energy diameter. We analytically show that multiplication of individual PSSN values due to individual errors is a good approximation for the total PSSN when various errors are considered simultaneously. We also numerically confirm this feature for Zernike aberrations, as well as for the numerous error sources considered in the TMT error budget using a ray optics simulator, Modeling and Analysis for Controlled Optical Systems. We also discuss other pertinent features of the PSSN including its relations to Zernike aberration and RMS wavefront error.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.790453DOIArticle
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the California Institute of Technology and the National Aeronautics and Space Administration. The authors gratefully acknowledge the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology and the University of California. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Universities for Research in Astronomy (AURA) and the U.S. National Science Foundation.
Group:Thirty Meter Telescope
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
British Columbia Knowledge Development FundUNSPECIFIED
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:Point Source Sensitivity, Optical Modeling, Image Plane Metric, MACOS, Thirty Meter Telescope
Record Number:CaltechAUTHORS:20180629-134349089
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180629-134349089
Official Citation:Byoung-Joon Seo, Carl Nissly, George Angeli, Brent Ellerbroek, Jerry Nelson, Norbert Sigrist, Mitchell Troy, "Analysis of Normalized Point Source Sensitivity as a performance metric for the Thirty Meter Telescope", Proc. SPIE 7017, Modeling, Systems Engineering, and Project Management for Astronomy III, 70170T (11 July 2008); doi: 10.1117/12.790453; https://doi.org/10.1117/12.790453
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87481
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:29 Jun 2018 21:02
Last Modified:29 Jun 2018 21:02

Repository Staff Only: item control page