Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Robert L. Meeks"'
Autor:
Allen Agliam, Tod Von Boeckmann, Ben Bergin, Cailean O'Sullivan, Steve Doyle, Kuochou Tai, Doug Perry, Jake Bilyk, John S. Hudek, Truman Wold, Leslie Wold, Danya Jacob, Dennis McBride, Robert L. Meeks
Publikováno v:
Ground-based and Airborne Telescopes VII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd2a48942588a5da15552dd5a852e889
https://doi.org/10.1117/12.2312790
https://doi.org/10.1117/12.2312790
Autor:
John S. Hudek, Mike Pollard, Jamie Higginson, Leslie Wold, Truman Wold, Tod Von Boeckmann, Steve Doyle, Dennis McBride, Robert L. Meeks, Kuochou Tai, William Irace
Publikováno v:
SPIE Proceedings.
The W. M. Keck Observatory Segment Repair Project is repairing stress-induced fractures near the support points in the primary mirror segments. The cracks are believed to result from deficiencies in the original design and implementation of the adhes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71c7c156febf0fb462a0bf93347f97c5
https://doi.org/10.1117/12.2233693
https://doi.org/10.1117/12.2233693
Publikováno v:
SPIE Proceedings.
Over the last several years the primary mirror cell systems for the Large Binocular Telescope have been upgraded to improve on-sky performance and observing efficiency. We describe improvements made to the support actuators and mirror positioning sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b7df1999ac359a24b503d2bbd578f68
https://doi.org/10.1117/12.926526
https://doi.org/10.1117/12.926526
Autor:
Robert L. Meeks, James Wiese, James Howard, David S. Ashby, Warren B. Davison, Jeff Urban, Rick Hansen, Jared Schuh
Publikováno v:
SPIE Proceedings.
After several years of operation the enclosure rotation system of the LBT is exhibiting wear and other performance issues that may impact operations. This paper reviews the system design and assumptions used, describes the current performance and obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6564d2dc9a3fefdc37283bd304f5e247
https://doi.org/10.1117/12.926493
https://doi.org/10.1117/12.926493
Publikováno v:
SPIE Proceedings.
We describe the design and performance of an improved hardpoint for the primary mirror cell of the Large Binocular Telescope. Six hardpoints define the position and orientation of the primary mirror and are key elements of the active optics system. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9277fa0260b5c54c5870ce1585aefa58
https://doi.org/10.1117/12.857264
https://doi.org/10.1117/12.857264
Publikováno v:
Advancements in Adaptive Optics.
This paper describes a random vibration, finite element analysis (FEA), performed on the Gemini Laser Launch Telescope (LLT) using ANSYS. A highly detailed model, originally created for static analysis, served as a baseline model but required extensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31b7c1bd8bf6b0c2aa80a2945a25fdee
https://doi.org/10.1117/12.552056
https://doi.org/10.1117/12.552056
Autor:
Michael Midkiff, Bruce H. Cook, J. Bell, Craig Smith, Peter Wizinowich, James M. Walker, Robert L. Meeks, Gordon Pentland
Publikováno v:
SPIE Proceedings.
EOS Technologies has completed four 1.8m telescopes that are to be used in the NASA/JPL Interferometer. The 1.8m telescopes (Outriggers) will form the workhorse of the interferometric system. This paper presents some of the performance data obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::877988f4436db7f9fe7958508ea426c1
https://doi.org/10.1117/12.549547
https://doi.org/10.1117/12.549547
Autor:
Robert L. Meeks
Publikováno v:
SPIE Proceedings.
Telescope mount models correct telescope pointing by compensating for repeatable errors. Geometric misalignments and manufacturing errors account for most of the repeatable variation. The pointing performance of a telescope depends strongly on the ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bccc096289c9aa2e32697a34c9fbda07
https://doi.org/10.1117/12.550753
https://doi.org/10.1117/12.550753
Autor:
Bruce H. Cook, Lawrence K. Randall, John K. Little, Daniel R. Blanco, Adrian Loeff, Craig H. Smith, Robert L. Meeks, Benjamin I. Greene, Gordon Pentland
Publikováno v:
SPIE Proceedings.
In the year 2000, EOS Technologies, Inc. of Tucson, Arizona will complete six two-meter class telescopes for astronomy. Applications for these telescopes range from monitoring of active-galactic nuclei to the search for extra-solar planets. Four of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::637f9d5958437fdcdec397bcf9011dc8
https://doi.org/10.1117/12.393949
https://doi.org/10.1117/12.393949
Autor:
Scott T. DeRigne, John M. Hill, Hubert M. Martin, B. B. Hille, Warren B. Davison, Thomas J. Trebisky, Robert L. Meeks
Publikováno v:
SPIE Proceedings.
We describe the active support system and optimization of support forces for a 3.5-m honeycomb sandwich mirror. The optimization was based on interferometric figure measurements made in a vibration-isolated test tower. We obtained actuator influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7249d1dfdb96d0cf757d7bee87fc1d3b
https://doi.org/10.1117/12.176194
https://doi.org/10.1117/12.176194