The Experts below are selected from a list of 216 Experts worldwide ranked by ideXlab platform
Richard Savage - One of the best experts on this subject based on the ideXlab platform.
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Design, alignment, and deployment of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2014Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Walter Moreira, Niv Drory, Linda Elliot, Martin Landriau, Jason Ramsey, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the design, alignment, and deployment of a suite of Instruments located at prime focus of the upgraded HET. This paper reviews the integration of motion control electronics and software and alignment of those electromechanical systems. Use of laser trackers, alignment telescopes, and other optical alignment techniques are covered. Deployment onto the upgraded telescope is discussed.
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Design, testing, and performance of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2012Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Marc D. Rafal, Tom H. Rafferty, Richard Savage, Charles A. Taylor, Walter Moreira, Michael J. SmithAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the engineering development of a suite of Instruments located at prime focus of the upgraded HET. The Prime Focus Instrument Package (PFIP) contains acquisition, guiding, and wave front sensing Instrumentation [2], the fiber feeds for the facility spectrographs (VIRUS, HRS, MRS, LRS2), and ancillary hardware. This paper reviews the design and functions of the PFIP and presents details of the mechanical design, integration and testing.
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A new control system hardware architecture for the Hobby-Eberly Telescope * prime focus Instrument Package
Proceedings of SPIE, 2010Co-Authors: Chuck Ramiller, Marc D. Rafal, Tom H. Rafferty, Trey Taylor, Mark E. Cornell, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) will be undergoing a major upgrade as a precursor to the HET Dark Energy Experiment (HETDEX ‡ ). As part of this upgrade, the Prime Focus Instrument Package (PFIP) will be replaced with a new design that supports the HETDEX requirements along with the existing suite of Instruments and anticipated future additions. This paper describes the new PFIP control system hardware plus the physical constraints and other considerations driving its design. Because of its location at the top end of the telescope, the new PFIP is essentially a stand-alone remote automation island containing over a dozen subsystems. Within the PFIP, motion controllers and modular IO systems are interconnected using a local Controller Area Network (CAN) bus and the CANOpen messaging protocol. CCD cameras that are equipped only with USB 2.0 interfaces are connected to a local Ethernet network via small microcontroller boards running embedded Linux. Links to ground-level systems pass through a 100 m cable bundle and use Ethernet over fiber optic cable exclusively; communications are either direct or through Ethernet/CAN gateways that pass CANOpen messages transparently. All of the control system hardware components are commercially available, designed for rugged industrial applications, and rated for extended temperature operation down to -10 °C.
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a new control system hardware architecture for the hobby eberly telescope prime focus Instrument Package
Proceedings of SPIE, 2010Co-Authors: Chuck Ramiller, Marc D. Rafal, Tom H. Rafferty, Trey Taylor, Mark E. Cornell, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) will be undergoing a major upgrade as a precursor to the HET Dark Energy Experiment (HETDEX ‡ ). As part of this upgrade, the Prime Focus Instrument Package (PFIP) will be replaced with a new design that supports the HETDEX requirements along with the existing suite of Instruments and anticipated future additions. This paper describes the new PFIP control system hardware plus the physical constraints and other considerations driving its design. Because of its location at the top end of the telescope, the new PFIP is essentially a stand-alone remote automation island containing over a dozen subsystems. Within the PFIP, motion controllers and modular IO systems are interconnected using a local Controller Area Network (CAN) bus and the CANOpen messaging protocol. CCD cameras that are equipped only with USB 2.0 interfaces are connected to a local Ethernet network via small microcontroller boards running embedded Linux. Links to ground-level systems pass through a 100 m cable bundle and use Ethernet over fiber optic cable exclusively; communications are either direct or through Ethernet/CAN gateways that pass CANOpen messages transparently. All of the control system hardware components are commercially available, designed for rugged industrial applications, and rated for extended temperature operation down to -10 °C.
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Current status of the hobby-eberly telescope wide field upgrade and VIRUS
Proceedings of SPIE, 2008Co-Authors: Richard Savage, Gary J. Hill, Marc D. Rafal, John A. Booth, Karl Gebhardt, John M. Good, Phillip J. Macqueen, Michael P. Smith, Brian L. VattiatAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker which moves the fourmirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the field of view by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). This paper discusses the current status of this upgrade.
Gary J. Hill - One of the best experts on this subject based on the ideXlab platform.
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Design, alignment, and deployment of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2014Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Walter Moreira, Niv Drory, Linda Elliot, Martin Landriau, Jason Ramsey, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the design, alignment, and deployment of a suite of Instruments located at prime focus of the upgraded HET. This paper reviews the integration of motion control electronics and software and alignment of those electromechanical systems. Use of laser trackers, alignment telescopes, and other optical alignment techniques are covered. Deployment onto the upgraded telescope is discussed.
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Deployment of the Hobby-Eberly Telescope wide-field upgrade
Proceedings of SPIE, 2014Co-Authors: Gary J. Hill, Brian L. Vattiat, John M. Good, Herman Kriel, Niv Drory, Randy Bryant, Linda Elliot, Martin Landriau, Ron LeckAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker, which moves the four-mirror optical corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the pupil size to 10 meters (from 9.2 m) and the field of view to 22 arcminutes (from 4 arcminutes) by replacing the corrector, tracker, and prime focus Instrument Package. In addition to supporting existing Instruments, and a new low resolution spectrograph, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX§). The upgrade is being installed and this paper discusses the current status.
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Design, testing, and performance of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2012Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Marc D. Rafal, Tom H. Rafferty, Richard Savage, Charles A. Taylor, Walter Moreira, Michael J. SmithAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the engineering development of a suite of Instruments located at prime focus of the upgraded HET. The Prime Focus Instrument Package (PFIP) contains acquisition, guiding, and wave front sensing Instrumentation [2], the fiber feeds for the facility spectrographs (VIRUS, HRS, MRS, LRS2), and ancillary hardware. This paper reviews the design and functions of the PFIP and presents details of the mechanical design, integration and testing.
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Current status of the Hobby-Eberly Telescope wide-field upgrade
Proceedings of SPIE, 2010Co-Authors: Gary J. Hill, Walter Moreira, Mark E. Cornell, John A. Booth, Karl Gebhardt, John M. Good, Herman Kriel, Ron Leck, Phillip J. MacqueenAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory (MDO). The HET operates with a fixed segmented primary and has a tracker which moves the four-mirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will increase the pupil size to 10 meters and the field of view to 22′ by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEXχ). This paper discusses the current status of this upgrade.
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Current status of the hobby-eberly telescope wide field upgrade and VIRUS
Proceedings of SPIE, 2008Co-Authors: Richard Savage, Gary J. Hill, Marc D. Rafal, John A. Booth, Karl Gebhardt, John M. Good, Phillip J. Macqueen, Michael P. Smith, Brian L. VattiatAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker which moves the fourmirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the field of view by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). This paper discusses the current status of this upgrade.
Brian L. Vattiat - One of the best experts on this subject based on the ideXlab platform.
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Design, alignment, and deployment of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2014Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Walter Moreira, Niv Drory, Linda Elliot, Martin Landriau, Jason Ramsey, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the design, alignment, and deployment of a suite of Instruments located at prime focus of the upgraded HET. This paper reviews the integration of motion control electronics and software and alignment of those electromechanical systems. Use of laser trackers, alignment telescopes, and other optical alignment techniques are covered. Deployment onto the upgraded telescope is discussed.
-
Deployment of the Hobby-Eberly Telescope wide-field upgrade
Proceedings of SPIE, 2014Co-Authors: Gary J. Hill, Brian L. Vattiat, John M. Good, Herman Kriel, Niv Drory, Randy Bryant, Linda Elliot, Martin Landriau, Ron LeckAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker, which moves the four-mirror optical corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the pupil size to 10 meters (from 9.2 m) and the field of view to 22 arcminutes (from 4 arcminutes) by replacing the corrector, tracker, and prime focus Instrument Package. In addition to supporting existing Instruments, and a new low resolution spectrograph, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX§). The upgrade is being installed and this paper discusses the current status.
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Design, testing, and performance of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2012Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Marc D. Rafal, Tom H. Rafferty, Richard Savage, Charles A. Taylor, Walter Moreira, Michael J. SmithAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the engineering development of a suite of Instruments located at prime focus of the upgraded HET. The Prime Focus Instrument Package (PFIP) contains acquisition, guiding, and wave front sensing Instrumentation [2], the fiber feeds for the facility spectrographs (VIRUS, HRS, MRS, LRS2), and ancillary hardware. This paper reviews the design and functions of the PFIP and presents details of the mechanical design, integration and testing.
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Current status of the hobby-eberly telescope wide field upgrade and VIRUS
Proceedings of SPIE, 2008Co-Authors: Richard Savage, Gary J. Hill, Marc D. Rafal, John A. Booth, Karl Gebhardt, John M. Good, Phillip J. Macqueen, Michael P. Smith, Brian L. VattiatAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker which moves the fourmirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the field of view by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). This paper discusses the current status of this upgrade.
Marc D. Rafal - One of the best experts on this subject based on the ideXlab platform.
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Design, testing, and performance of the Hobby Eberly Telescope prime focus Instrument Package
Proceedings of SPIE, 2012Co-Authors: Brian L. Vattiat, Gary J. Hill, Dave M. Perry, Marc D. Rafal, Tom H. Rafferty, Richard Savage, Charles A. Taylor, Walter Moreira, Michael J. SmithAbstract:The Hobby-Eberly Telescope (HET) is undergoing an upgrade to increase the field of view to 22 arc-minutes with the dark energy survey HETDEX the initial science goal [1]. Here we report on the engineering development of a suite of Instruments located at prime focus of the upgraded HET. The Prime Focus Instrument Package (PFIP) contains acquisition, guiding, and wave front sensing Instrumentation [2], the fiber feeds for the facility spectrographs (VIRUS, HRS, MRS, LRS2), and ancillary hardware. This paper reviews the design and functions of the PFIP and presents details of the mechanical design, integration and testing.
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A new control system hardware architecture for the Hobby-Eberly Telescope * prime focus Instrument Package
Proceedings of SPIE, 2010Co-Authors: Chuck Ramiller, Marc D. Rafal, Tom H. Rafferty, Trey Taylor, Mark E. Cornell, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) will be undergoing a major upgrade as a precursor to the HET Dark Energy Experiment (HETDEX ‡ ). As part of this upgrade, the Prime Focus Instrument Package (PFIP) will be replaced with a new design that supports the HETDEX requirements along with the existing suite of Instruments and anticipated future additions. This paper describes the new PFIP control system hardware plus the physical constraints and other considerations driving its design. Because of its location at the top end of the telescope, the new PFIP is essentially a stand-alone remote automation island containing over a dozen subsystems. Within the PFIP, motion controllers and modular IO systems are interconnected using a local Controller Area Network (CAN) bus and the CANOpen messaging protocol. CCD cameras that are equipped only with USB 2.0 interfaces are connected to a local Ethernet network via small microcontroller boards running embedded Linux. Links to ground-level systems pass through a 100 m cable bundle and use Ethernet over fiber optic cable exclusively; communications are either direct or through Ethernet/CAN gateways that pass CANOpen messages transparently. All of the control system hardware components are commercially available, designed for rugged industrial applications, and rated for extended temperature operation down to -10 °C.
-
a new control system hardware architecture for the hobby eberly telescope prime focus Instrument Package
Proceedings of SPIE, 2010Co-Authors: Chuck Ramiller, Marc D. Rafal, Tom H. Rafferty, Trey Taylor, Mark E. Cornell, Richard SavageAbstract:The Hobby-Eberly Telescope (HET) will be undergoing a major upgrade as a precursor to the HET Dark Energy Experiment (HETDEX ‡ ). As part of this upgrade, the Prime Focus Instrument Package (PFIP) will be replaced with a new design that supports the HETDEX requirements along with the existing suite of Instruments and anticipated future additions. This paper describes the new PFIP control system hardware plus the physical constraints and other considerations driving its design. Because of its location at the top end of the telescope, the new PFIP is essentially a stand-alone remote automation island containing over a dozen subsystems. Within the PFIP, motion controllers and modular IO systems are interconnected using a local Controller Area Network (CAN) bus and the CANOpen messaging protocol. CCD cameras that are equipped only with USB 2.0 interfaces are connected to a local Ethernet network via small microcontroller boards running embedded Linux. Links to ground-level systems pass through a 100 m cable bundle and use Ethernet over fiber optic cable exclusively; communications are either direct or through Ethernet/CAN gateways that pass CANOpen messages transparently. All of the control system hardware components are commercially available, designed for rugged industrial applications, and rated for extended temperature operation down to -10 °C.
-
Current status of the hobby-eberly telescope wide field upgrade and VIRUS
Proceedings of SPIE, 2008Co-Authors: Richard Savage, Gary J. Hill, Marc D. Rafal, John A. Booth, Karl Gebhardt, John M. Good, Phillip J. Macqueen, Michael P. Smith, Brian L. VattiatAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker which moves the fourmirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the field of view by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). This paper discusses the current status of this upgrade.
Ron Leck - One of the best experts on this subject based on the ideXlab platform.
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Deployment of the Hobby-Eberly Telescope wide-field upgrade
Proceedings of SPIE, 2014Co-Authors: Gary J. Hill, Brian L. Vattiat, John M. Good, Herman Kriel, Niv Drory, Randy Bryant, Linda Elliot, Martin Landriau, Ron LeckAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker, which moves the four-mirror optical corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will substantially increase the pupil size to 10 meters (from 9.2 m) and the field of view to 22 arcminutes (from 4 arcminutes) by replacing the corrector, tracker, and prime focus Instrument Package. In addition to supporting existing Instruments, and a new low resolution spectrograph, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX§). The upgrade is being installed and this paper discusses the current status.
-
Current status of the Hobby-Eberly Telescope wide-field upgrade
Proceedings of SPIE, 2010Co-Authors: Gary J. Hill, Walter Moreira, Mark E. Cornell, John A. Booth, Karl Gebhardt, John M. Good, Herman Kriel, Ron Leck, Phillip J. MacqueenAbstract:The Hobby-Eberly Telescope (HET) is an innovative large telescope of 9.2 meter aperture, located in West Texas at the McDonald Observatory (MDO). The HET operates with a fixed segmented primary and has a tracker which moves the four-mirror corrector and prime focus Instrument Package to track the sidereal and non-sidereal motions of objects. A major upgrade of the HET is in progress that will increase the pupil size to 10 meters and the field of view to 22′ by replacing the corrector, tracker and prime focus Instrument Package. In addition to supporting the existing suite of Instruments, this wide field upgrade will feed a revolutionary new integral field spectrograph called VIRUS, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEXχ). This paper discusses the current status of this upgrade.