Parametric cost models for space telescopes

H. Philip Stahl; Todd Henrichs; Courtnay Dollinger

doi:10.1117/12.2309130

20 November 2017 Parametric cost models for space telescopes

H. Philip Stahl, Todd Henrichs, Courtnay Dollinger

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Proceedings Volume 10565, International Conference on Space Optics — ICSO 2010; 1056507 (2017) https://doi.org/10.1117/12.2309130
Event: International Conference on Space Optics—ICSO 2010, 2010, Rhodes Island, Greece

Abstract

Multivariable parametric cost models for space telescopes provide several benefits to designers and space system project managers. They identify major architectural cost drivers and allow high-level design trades. They enable cost-benefit analysis for technology development investment. And, they provide a basis for estimating total project cost. A survey of historical models found that there is no definitive space telescope cost model. In fact, published models vary greatly [1]. Thus, there is a need for parametric space telescopes cost models. An effort is underway to develop single variable [2] and multi-variable [3] parametric space telescope cost models based on the latest available data and applying rigorous analytical techniques.

Specific cost estimating relationships (CERs) have been developed which show that aperture diameter is the primary cost driver for large space telescopes; technology development as a function of time reduces cost at the rate of 50% per 17 years; it costs less per square meter of collecting aperture to build a large telescope than a small telescope; and increasing mass reduces cost.

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H. Philip Stahl, Todd Henrichs, and Courtnay Dollinger "Parametric cost models for space telescopes", Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 1056507 (20 November 2017); https://doi.org/10.1117/12.2309130

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KEYWORDS

Space telescopes

Data modeling

James Webb Space Telescope

Telescopes

Mirrors

Astronomical imaging

Infrared telescopes

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