Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Terence A. Facey"'
Autor:
Victor L. Krabbendam, Mark E. Furber, Andrea M. Sarnik, Victor P. Bennett, Charles D. Cox, John P. Blackburn, Chi S. Keung, Richard A. Rockwell, Conrad Neufeld, Gregory P. Ruthven, John T. Stein, Terence A. Facey
Publikováno v:
SPIE Proceedings.
The SOAR Telescope project has embarked on the development of a very high quality 4.2-meter diameter optical telescope to be sited on Cerro Pachon in Chile. The telescope will feature an image quality of 0.18 arc seconds, a moderate field of 11 arc m
Publikováno v:
Advanced Technology Optical Telescopes IV.
The fabrication of high aspect ratio mirrors up to 8-m in diameter presents numerous new challenges in the field of optical manufacturing technology. These mirrors, with aspect ratios in the region of 40:1, represent a new class of optics which requi
Autor:
Terence A. Facey, Daniel J. McCarthy
Publikováno v:
Optical Systems Engineering II.
For more than 15 years, NASA, the National Academy of Sciences, the America Institute of Aeronautics and Astronautics, and the community of the world's astronomers vigorously promoted the idea of a telescope in space, at seminars, symposia and confer
Autor:
Terence A. Facey
Publikováno v:
Optical Systems Contamination: Effects, Measurement, Control.
This paper will review the particulate control program applied to the design, construction and testing of the Optical Telescope Assembly. Allowable levels of contamination were derived from system performance requirements using performance predictive
Autor:
Terence A. Facey
Publikováno v:
SPIE Proceedings.
A key systems engineering tool in the management of the Space Telescope is the use of error budget "margins", or resource reserves, which are put aside and used subsequently either to lower cost or alleviate unforeseen problems. Most margins are used
Autor:
Terence A. Facey
Publikováno v:
Topical Meeting on Optics in Adverse Environments.
The Hubble Space Telescope represents the largest single advance in astronomical instrumentation since the Hale 5 metre telescope at Mt Palomar. Its extreme sensitivity and resolution, however, are susceptible to degradation from a number of environm
Autor:
Terence A. Facey
Publikováno v:
Measurement and Effects of Surface Defects & Quality of Polish.
Photographs of the Hubble Space Telescope's primary mirror after cleaning in June 1984, have been analyzed. Prior to the cleaning, approximately 2.5% of the mirror aperture area was obscured by dust. Particle sizes ranged from 25 micrometers diameter
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Conference
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