The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
Craig Rice - One of the best experts on this subject based on the ideXlab platform.
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IROS - Modeling and Simulation of Robotic System for Servicing Hubble Space Telescope
2006 IEEE RSJ International Conference on Intelligent Robots and Systems, 2006Co-Authors: Jiegao Wang, Raja Mukherji, Mariano Ficocelli, Andrew Ogilvie, Craig RiceAbstract:This paper addresses modeling, simulation and controls of a robotic servicing system for the Hubble Space Telescope servicing missions. The simulation models of the robotic system include flexible body dynamics, control systems and geometric models of the contacting bodies. These models are incorporated into MDA's simulation facilities, the multibody dynamics simulator "Space Station Portable Operations Training Simulator (SPOTS)". Three simulation examples of the robotic servicing operations are presented: (1) capture of the Hubble Space Telescope, (2) berthing the Hubble Space Telescope to the Hubble Robotic Vehicle and (3) inserting the Wide Field Camera into the Hubble Space Telescope.
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Modeling and Simulation of Robotic System for Servicing Hubble Space Telescope
2006 IEEE RSJ International Conference on Intelligent Robots and Systems, 2006Co-Authors: Jiegao Wang, Raja Mukherji, Mariano Ficocelli, Andrew Ogilvie, Michael Liu, Craig RiceAbstract:This paper addresses modeling, simulation and controls of a robotic servicing system for the hubble Space Telescope servicing missions. The simulation models of the robotic system include flexible body dynamics, control systems and geometric models of the contacting bodies. These models are incorporated into MDA's simulation facilities, the multibody dynamics simulator "Space station portable operations training simulator (SPOTS)". Three simulation examples of the robotic servicing operations are presented: (1) capture of the hubble Space Telescope, (2) berthing the hubble Space Telescope to the hubble robotic vehicle and (3) inserting the wide field camera into the hubble Space Telescope
John C. Mather - One of the best experts on this subject based on the ideXlab platform.
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The Next Generation Space Telescope
Symposium - International Astronomical Union, 2020Co-Authors: H. S. Stockman, John C. MatherAbstract:The Next Generation Space Telescope (NGST) will be an 8 m deployable Telescope, radiatively cooled to 30 K and diffraction-limited at 2 μm, operating at the Sun-Earth Lagrangian point L2. It will be built by a partnership of NASA, ESA, and CSA (Canadian Space Agency). The camera sensitivity should be limited by the zodiacal light for wavelengths < 10 μm. The main scientific objectives are the study of the origin and evolution of galaxies, stars, and planets, beginning with the first luminous objects to form from the Big Bang. Other objectives include studies of dark matter, supernovae, the intergalactic medium, gamma ray bursts, star ages, and exobiology. The Telescope will be operated like the Hubble Space Telescope (HST) by the Space Telescope Science Institute, with all observing programs openly solicited and selected by peer review.The NGST scientific requirements originated with the report of the Dressler Committee HST & Beyond. The instruments recommended by the Ad Hoc Science Working Group (ASWG) include 1) a wide field near infrared (NIR) camera with an 8K2 detector array covering 0.6 - 5 μm, 2) a multi-object NIR spectrograph capable of simultaneously observing > 100 objects with a resolution of R (λ/δλ) = 1000, and 3) a combined mid-infrared (MIR) camera and spectrograph from 5-27 μm, with a resolution of R > 1500.
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The James Webb Space Telescope
Imaging and Applied Optics 2015, 2015Co-Authors: John C. MatherAbstract:NASA’s James Webb Space Telescope (JWST), planned for launch in October 2018, utilizes high performance imaging optics to see beyond what the great Hubble Space Telescope can see, farther away and farther back in time. It will be the workhorse Telescope for a generation of Space astronomers, opening the infrared (0.6-28 µm) window with a 6.6 m aperture cold Telescope. To test it end-to-end, we have developed remarkable laser interferometer technologies, with computer-generated holograms to test the primary mirror, and it must all be done cold and in a vacuum tank. I will outline the mission design, the scientific objectives, and the current status.
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The James Webb Space Telescope Mission
2010Co-Authors: John C. MatherAbstract:The James Webb Space Telescope, planned to extend the scientific discoveries of the Hubble Space Telescope, will be a powerful observational tool for the investigation of the first stars and galaxies. With a 6.5‐m hexagonal mirror cooled to ∼40 K, and an instrument package covering 0.6 to 28 μm with imaging, spectroscopy with R up to ∼3000, and coronography, it will be capable of observing predicted primeval objects down to flux levels of a few nJy (10 σ) at 2 μm. Operated like the Hubble Telescope from the Space Telescope Science Institute in Baltimore, it will be available for general observers by proposals, to be solicited a year before launch. It has a required lifetime of 5 years and fuel for 10.
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The James Webb Space Telescope
Space Science Reviews, 2006Co-Authors: Jonathan P. Gardner, John C. Mather, Rene Doyon, Matthew A. Greenhouse, Peter Jakobsen, Simon J. Lilly, Mark Clampin, John B. Hutchings, H B Hammel, Knox S. LongAbstract:The James Webb Space Telescope (JWST) is a large (6.6 m), cold (
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The James Webb Space Telescope
Frontiers in Optics, 2003Co-Authors: John C. MatherAbstract:The James Webb Space Telescope (JWST) will extend the discoveries of the Hubble Space Telescope by deploying a large cooled infrared Telescope at the Sun-Earth Lagrange point L2. It will have a 6 m aperture and three instruments covering the wavelength range from 0.6 to 28 µm.
Alain Lecavelier Des Etangs - One of the best experts on this subject based on the ideXlab platform.
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the deep blue color of hd 189733b albedo measurements with hubble Space Telescope Space Telescope imaging spectrograph at visible wavelengths
The Astrophysical Journal, 2013Co-Authors: Thomas M Evans, F Pont, David K Sing, S Aigrain, J K Barstow, J M Desert, N P Gibson, Kevin Heng, Heather A Knutson, Alain Lecavelier Des EtangsAbstract:We present a secondary eclipse observation for the hot Jupiter HD 189733b across the wavelength range 290-570 nm made using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope. We measure geometric albedos of Ag = 0.40 ± 0.12 across 290-450 nm and Ag < 0.12 across 450-570 nm at 1σ confidence. The albedo decrease toward longer wavelengths is also apparent when using six wavelength bins over the same wavelength range. This can be interpreted as evidence for optically thick reflective clouds on the dayside hemisphere with sodium absorption suppressing the scattered light signal beyond ~450 nm. Our best-fit albedo values imply that HD 189733b would appear a deep blue color at visible wavelengths.
Nasa - One of the best experts on this subject based on the ideXlab platform.
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The Space Telescope
2019Co-Authors: NasaAbstract:Papers concerning the development of the Space Telescope which were presented at the Twenty-first Annual Meeting of the American Astronautical Society in August, 1975 are included. Mission planning, Telescope performance, optical detectors, mirror construction, pointing and control systems, data management, and maintenance of the Telescope are discussed.
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Hubble Space Telescope
2019Co-Authors: NasaAbstract:An overview of the mission of the Hubble Space Telescope, a joint project between NASA and the European Space Agency which will be used to study deep Space, as well as our solar system is presented. The video contains animations depicting the Hubble Space Telescope in orbit, as well as footage of scientists at the Space Telescope Science Institute making real time observations. The images Hubble acquires will be downloaded into a database that contains images of over 19,000,000 celestial objects called the Star Catalog.
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The James Webb Space Telescope
2008Co-Authors: NasaAbstract:The James Webb Space Telescope will replace the Hubble Space Telescope by the end of the decade. This proposed 6-metre Space Telescope will be stationed more than a million kilometres from earth.
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The Hubble Space Telescope
2008Co-Authors: NasaAbstract:The Hubble Space Telescope orbits 600 Kilometers above Earth. It provides stunning views of the Universe that cannot be made using ground-based Telescopes or other satellites.
Matthew A. Greenhouse - One of the best experts on this subject based on the ideXlab platform.
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The James Webb Space Telescope: Mission Overview and Status
2019 IEEE Aerospace Conference, 2019Co-Authors: Matthew A. GreenhouseAbstract:The James Webb Space Telescope (JWST) is the scientific successor to the Hubble Space Telescope. It is a cryogenic infrared Space observatory with a 25 m2 aperture (6 m class) Telescope that will achieve diffraction limited angular resolution at a wavelength of 2 μm. The science instrument payload includes four passively cooled near-infrared instruments providing broad- and narrow-band imagery, coronography, as well as multi-object and integral-field spectroscopy over the 0.6
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The James Webb Space Telescope: Mission overview and status
2011 2nd International Conference on Space Technology, 2011Co-Authors: Matthew A. GreenhouseAbstract:The James Webb Space Telescope (JWST) is the infrared successor to the Hubble Space Telescope. It is a cryogenic infrared Space observatory with a 25 m2 aperture (6 m class) Telescope yielding diffraction limited angular resolution at a wavelength of 2 um. The science instrument payload includes three passively cooled near-infrared instruments providing broad - and narrow-band imagery, coronagraphy, as well as multi-object and integral-field spectroscopy over the 0.6
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The James Webb Space Telescope
Space Science Reviews, 2006Co-Authors: Jonathan P. Gardner, John C. Mather, Rene Doyon, Matthew A. Greenhouse, Peter Jakobsen, Simon J. Lilly, Mark Clampin, John B. Hutchings, H B Hammel, Knox S. LongAbstract:The James Webb Space Telescope (JWST) is a large (6.6 m), cold (
