NTRS - NASA Technical Reports Server

Back to Results
Spherical Primary Optical Telescope (SPOT): An Architecture Demonstration for Cost-effective Large Space TelescopesThis paper summarizes efforts underway at the Goddard Space Flight Center to demonstrate a new type of space telescope architecture that builds on the rigid, segmented telescope heritage of the James Webb Space Telescope but that solves several key challenges for future space telescopes. The architecture is based on a cost-effective segmented spherical primary mirror combined with a unique wavefront sensing and control system that allows for continuous phasing of the primary mirror. The segmented spherical primary allows for cost-effective 3-meter class (eg, Midex and Discovery) missions as well as enables 30-meter telescope solutions that can be manufactured in a reasonable amount of time and for a reasonable amount of money. The continuous wavefront sensing and control architecture enables missions in low-earth-orbit and missions that do not require expensive stable structures and thermal control systems. For the 30-meter class applications, the paper discusses considerations for assembling and testing the telescopes in space. The paper also summarizes the scientific and technological roadmap for the architecture and also gives an overview of technology development, design studies, and testbed activities underway to demonstrate it s feasibility.
Document ID
Acquisition Source
Goddard Space Flight Center
Document Type
Feinberg, Lee
Hagopian, John
Budinoff, Jason
Dean, Bruce
Howard, Joe
Date Acquired
August 22, 2013
Publication Date
January 1, 2005
Subject Category
Meeting Information
Meeting: IEEE Aerospace Conference
Location: Big Sky, MT
Country: United States
Start Date: March 6, 2004
End Date: March 13, 2004
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available