Share Email Print
cover

Proceedings Paper

Normalized point source sensitivity for off-axis optical performance evaluation of the Thirty Meter Telescope
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Normalized Point Source Sensitivity (PSSN) has previously been defined and analyzed as an On-Axis seeing-limited telescope performance metric. In this paper, we expand the scope of the PSSN definition to include Off-Axis field of view (FoV) points and apply this generalized metric for performance evaluation of the Thirty Meter Telescope (TMT). We first propose various possible choices for the PSSN definition and select one as our baseline. We show that our baseline metric has useful properties including the multiplicative feature even when considering Off-Axis FoV points, which has proven to be useful for optimizing the telescope error budget. Various TMT optical errors are considered for the performance evaluation including segment alignment and phasing, segment surface figures, temperature, and gravity, whose On-Axis PSSN values have previously been published by our group.

Paper Details

Date Published: 4 August 2010
PDF: 9 pages
Proc. SPIE 7738, Modeling, Systems Engineering, and Project Management for Astronomy IV, 77380G (4 August 2010); doi: 10.1117/12.857722
Show Author Affiliations
Byoung-Joon Seo, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
Carl Nissly, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
Mitchell Troy, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
George Angeli, Thirty Meter Telescope (United States)


Published in SPIE Proceedings Vol. 7738:
Modeling, Systems Engineering, and Project Management for Astronomy IV
George Z. Angeli; Philippe Dierickx, Editor(s)

© SPIE. Terms of Use
Back to Top