Dr. Satoki Matsushita Profile

Dr. Satoki Matsushita

Research Fellow at Institute of Astronomy and Astrophysics, Academia Sinica

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 11 September 2024 Presentation + Paper

Presentation + Paper

Advanced metrology sensor applications for improved pointing performance of the Greenland Telescope

Nimesh Patel, Pierre Martin-Cocher, Philippe Raffin, George Nystrom, Satoki Matsushita, Chih-Wei Huang, Klaus Willmeroth, Teddy Huang, Derek Kubo, Jun-Yi Koay, Cristina Romero-Canizales, Keiichi Asada, Ming-Tang Chen, Johnson Han, Paul T. Ho, Timothy Norton, T. Sridharan

Proceedings Volume 13094, 130940G (2024) https://doi.org/10.1117/12.3019144

KEYWORDS: Sensors, Antennas, Temperature sensors, Metrology, Telescopes, Receivers, Wind speed, Data modeling

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Proceedings Article | 13 December 2020 Presentation

Presentation

The Event Horizon Telescope: technologies behind the first black hole shadow imaging

Satoki Matsushita

Proceedings Volume 11445, 114451Z (2020) https://doi.org/10.1117/12.2560921

KEYWORDS: Telescopes, Interferometry, Spatial resolution, Image resolution, Galactic astronomy, Scattering, Receivers, Hydrogen, Analog electronics, Digital clocks

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Control and monitoring software for the Greenland Telescope

Chih-Wei Locutus Huang, Satoki Matsushita, Nimesh Patel, Ranjani Srinivasan, Keiichi Asada, Geoffrey Bower, Shu-Hao Chang, Chung-Cheng Chen, Ming-Tang Chen, Ryan Chilson, Chih-Chiang Han, Paul T. Ho, Yau-De Huang, Makoto Inoue, Homin Jiang, Jun Yi Koay, Patrick Koch, Shoko Koyama, Derek Kubo, Cheng-Yu Kuo, Chao-Te Li, Ching-Tang Liu, Kuan-Yu Liu, Wen-Ping Lo, Pierre Martin-Cocher, Masanori Nakamura, Timothy Norton, George Nystrom, Peter Oshiro, Jongho Park, Hung-Yi Pu, Philippe Raffin, Ramprasad Rao, Cristina Romero-Cañizales, Paul Shaw, T. Sridharan, Ta-Shun Wei, Chen-Yu Yu

Proceedings Volume 11452, 114521S (2020) https://doi.org/10.1117/12.2561430

KEYWORDS: Telescopes, Control systems, Telecommunications, Interfaces, Receivers, Radio telescopes, Interferometry, Antennas, Adaptive control, Databases

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Status of scientific commissioning of the Greenland Telescope

Jun Yi Koay, Satoki Matsushita, Keiichi Asada, Nimesh Patel, Chih-Wei Huang, Geoffrey Bower, Shu-Hao Chang, Ming-Tang Chen, Chung-Cheng Chen, Ryan Chilson, Chih-Chiang Han, Paul T. Ho, Yau-De Huang, Makoto Inoue, Homin Jiang, Patrick Koch, Shoko Koyama, Cheng-Yu Kuo, Derek Kubo, Chao-Te Li, Ching-Tang Liu, Kuan-Yu Liu, Wen-Ping Lo, Pierre Martin-Cocher, Masanori Nakamura, Timothy Norton, George Nystrom, Peter Oshiro, Jongho Park, Hung-Yi Pu, Philippe Raffin, Ramprasad Rao, Cristina Romero-Canizales, Paul Shaw, Tirupati Sridharan, Ranjani Srinivasan, Ta-Shun Wei, Chen-Yu Yu

Proceedings Volume 11445, 114450Q (2020) https://doi.org/10.1117/12.2561491

KEYWORDS: Telescopes, Atmospheric modeling, Antennas, Refraction, Photogrammetry

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

GLT receiver commissioning at JCMT and future JCMT instrumentation

Dan Bintley, Per Friberg, Ryan Berthold, Tim Chuter, Kuan-Yu Liu, Craig Walther, Jessica Dempsey, Paul Ho, Helen McGregor, Satoki Matsushita, Keiichi Asada, Shoko Koyama, Hiroaki Nishioka, Chih-Chiang Han, Chih-Wei Huang, Lupin Lin, Ta-Shun Wei, Derek Kubo, Ranjani Srinivasan, Ramprasad Rao, Geoff Bower, Peter Oshiro, Ming-Tang Chen

Proceedings Volume 10708, 1070815 (2018) https://doi.org/10.1117/12.2313083

KEYWORDS: Receivers, Telescopes, Mirrors, Polarization, Calibration, Astronomy, Antennas, Optical correlators, Observatories

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Proceedings Article | 9 July 2018 Paper

Paper

The first-light receivers for the Greenland Telescope

Chih-Chiang Han, Ming-Tang Chen, Yau-De Huang, Derek Kubo, Chih-Cheng Chang, Shu-Hao Chang, Ta-Shun Wei, Ji-Dian Huang, Chung-Chen Chen, Philippe Raffin, Ching-Tang Liu, Paul T. Ho, Makota Inoue, Satoki Matsushita, Keiichi Asada, Timothy Norton, Ryan Chilson, Ranjani Srinivasan, Kuan-Yu Liu, Chao-Te Li, Daniel Bintley, Craig Walther, Per Friberg, Jessica Dempsey, Hideo Ogawa, Kimihiro Kimura, Yutaka Hasagawa, Sivasankaran Srikanth

Proceedings Volume 10708, 1070835 (2018) https://doi.org/10.1117/12.2313475

KEYWORDS: Receivers, Telescopes, Antennas, Reflectors, Observatories, Polarization

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Electronics instrumentation for the Greenland Telescope

Derek Kubo, Chih-Chiang Han, Hiroaki Nishioka, Ryan Chilson, Ranjani Srinivasan, Sheng-Feng Yen, Kuo-Chieh Fu, Homin Jiang, Kuan-Yu Liu, Ta-Shun Wei, Chih-Wei Huang, Chen-Yu Yu, Peter Oshiro, Shu-Hao Chang, Chung-Cheng Chen, Philippe Raffin, Yau-De Huang, Pierre Martin-Cocher, Ming-Tang Chen, Makoto Inoue, Satoki Matsushita, Keiichi Asada, Shoko Koyama, Patrick Koch, Paul T. Ho, Yang-Tai Shaw, Timothy Norton, Nimesh Patel, Shepherd Doeleman, Daniel Bintley, Craig Walther, Per Friberg, Jessica Dempsey, Hideo Ogawa, Kimihiro Kimura, Yutaka Hasegawa, Ching-Tang Liu, Kou-Chang Han, Song-Chu Chang, Li-Ming Lu

Proceedings Volume 10708, 1070816 (2018) https://doi.org/10.1117/12.2312241

KEYWORDS: Receivers, Switches, Photonics, Telescopes, Sensors, Antennas, Electronics, Spectroscopy, Oscillators

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

The Greenland telescope: Thule operations

Ming-Tang Chen, Philippe Raffin, Paul T. Ho, Makoto Inoue, Ching-Tang Liu, Yau-De Huang, Chih-Chiang Han, Timothy Norton, Satoki Matsushita, Keiichi Asada, George Nystrom, Derek Kubo, Nimesh Patel, Shu-Hao Chang, Ta-Shun Wei, Pierre Martin-Cocher, Homin Jiang, Paul Shaw, Hiroaki Nishioka, Chih-Wei L. Huang, Chung-Chen Chen, Patrick Koch, Ryan Chilson, Ranjani Srinivasan, Kuan-Yu Liu, Chen-Yu Yu, Geoffrey Bower, Peter Oshiro, William Snow, Shoko Koyama, Jun Yi Koay, Chao-Te Li, Wen-Ping Lo, Chih-Cheng Chang, Masanori Nakamura, Zheng Meyer-Zhao, Hung-Yi Pu, Lupin Lin, Daniel Bintley, Craig Walther, Per Friberg, Jessica Dempsey, T. Sridharan, Sheperd Doeleman, Roger Brissenden, Hideo Ogawa, Kimihiro Kimura, Yutaka Hasegawa, Jinchi Hao, Kuo-Chang Han, Song-Chu Chang, Li-Ming Lu, Juan-Carlos Algaba Marcos, Alex Allardi, Aaron Faber, Fu-li Hsu, Wei-Long Chen, Fang-Chia Hsieh

Proceedings Volume 10700, 107000H (2018) https://doi.org/10.1117/12.2313378

KEYWORDS: Antennas, Telescopes, Receivers, Observatories, Astronomy, Astrophysics

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Proceedings Article | 6 July 2018 Paper

Paper

Control and monitoring system for the Greenland Telescope: computers, network and software

Hiroaki Nishioka, Chih-Wei Locutus Huang, Nimesh Patel, Derek Kubo, Ranjani Srinivasan, Chih-Chiang Han, Chen-Yu Yu, Homin Jiang, Lupin Chun-Che Lin, Zheng Meyer-Zhao, Pierre Martin-Cocher, Satoki Matsushita, Keiichi Asada, Makoto Inoue, Shoko Koyama, Craig Walther, Dan Bintley, Kuan-Yu Liu, Ryan Berthold, Tim Chuter, Per Friberg, Geoffrey Bower, Shu-Hao Chang, Ming-Tang Chen, Jessica Dempsey, Sheperd Doeleman, Yau-De Huang, Paul T. Ho, Jun-Yi Koay, Patrick Koch, Ching-Tang Liu, Wen-Ping Lo, Masanori Nakamura, Timothy Norton, George Nystrom, Peter Oshiro, Ta-Shun Wei

Proceedings Volume 10700, 107005N (2018) https://doi.org/10.1117/12.2313104

KEYWORDS: Computing systems, Receivers, Global Positioning System, Antennas, Spectroscopy, Control systems, Telescopes, Switches, Sensors, Astronomy

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Proceedings Article | 6 July 2018 Paper

Paper

Commissioning status of the Greenland Telescope (GLT)

Satoki Matsushita, Keiichi Asada, Makoto Inoue, Hiroaki Nishioka, Chih-Wei Huang, Nimesh Patel, Jun Yi Koay, Shoko Koyama, Patrick Koch, Zheng Meyer-Zhao, Lupin C.-C. Lin, Paul T. Ho, Ming-Tang Chen, Timothy Norton, Kuan-Yu Liu, Chen-Yu Yu, Do-Young Byun, Juan-Carlos Algaba Marcos, Alex Allardi, Geoffrey Bower, Shu-Hao Chang, Chung-Chen Chen, Ryan Chilson, Aaron Faber, Chih-Chiang Han, Yau-De Huang, Homin Jiang, Derek Kubo, Ching-Tang Liu, Wen-Ping Lo, Pierre Martin-Cocher, Masanori Nakamura, George Nystrom, Peter Oshiro, Hung-Yi Pu, Philippe Raffin, Paul Shaw, Williams Snow, Ranjani Srinivasan, Ta-Shun Wei, Ryan Berthold, Daniel Bintley, Jessica Dempsey, Per Friberg, Craig Walther, Jonathan Weintroub, André Young, Ken Young, T. Sridharan, Sheperd Doeleman, Roger Brissenden, Hideo Ogawa, Kimihiro Kimura, Yutaka Hasegawa, Jinchi Hao, Kou-Chang Han, Song-Chu Chang, Li-Ming Lu

Proceedings Volume 10700, 1070029 (2018) https://doi.org/10.1117/12.2310046

KEYWORDS: Receivers, Telescopes, Antennas, Astronomy, Observatories, Radio optics, Radio astronomy, Radio interferometry, Submillimeter telescopes

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Proceedings Article | 8 August 2016 Paper

Paper

ALMA long baseline phase calibration using phase referencing

Yoshiharu Asaki, Satoki Matsushita, Edward Fomalont, Stuartt Corder, Lars-Åke Nyman, William R. Dent, Neil Philips, Akihiko Hirota, Satoko Takahashi, Baltasar Vila-Vilaro, Bojan Nikolic, Todd Hunter, Anthony Remijan, Catherine Vlahakis

Proceedings Volume 9906, 99065U (2016) https://doi.org/10.1117/12.2232301

KEYWORDS: Telescopes, Troposphere, Calibration, Antennas, Spatial resolution, Phase interferometry, Interferometers, Switching, Atmospheric modeling, Astronomy

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The Atacama Large Millimeter/submillimeter Array (ALMA) is the world's largest millimeter/submillimeter telescope and provides unprecedented sensitivities and spatial resolutions. To achieve the highest imaging capabilities, interferometric phase calibration for the long baselines is one of the most important subjects: The longer the baselines, the worse the phase stability becomes because of turbulent motions of the Earth's atmosphere, especially, the water vapor in the troposphere. To overcome this subject, ALMA adopts a phase correction scheme using a Water Vapor Radiometer (WVR) to estimate the amount of water vapor content along the antenna line of sight. An additional technique is phase referencing, in which a science target and a nearby calibrator are observed by turn by quickly changing the antenna pointing. We conducted feasibility studies of the hybrid technique with the WVR phase correction and the antenna Fast Switching (FS) phase referencing (WVR+FS phase correction) for the ALMA 16 km longest baselines in cases that (1) the same observing frequency both for a target and calibrator is used, and (2) higher and lower frequencies for a target and calibrator, respectively, with a typical switching cycle time of 20 s. It was found that the phase correction performance of the hybrid technique is promising where a nearby calibrator is located within roughly 3◦ from a science target, and that the phase correction with 20 s switching cycle time significantly improves the performance with the above separation angle criterion comparing to the 120 s switching cycle time. The currently trial phase calibration method shows the same performance independent of the observing frequencies. This result is especially important for the higher frequency observations because it becomes difficult to find a bright calibrator close to an arbitrary sky position. In the series of our experiments, it is also found that phase errors affecting the image quality come from not only the water vapor content in the lower troposphere but also a large structure of the atmosphere with a typical cell scale of a few tens of kilometers.

Proceedings Article | 27 July 2016 Paper

Paper

Atmospheric phase characteristics of the ALMA long baseline

Satoki Matsushita, Yoshiharu Asaki, Edward Fomalont, Denis Barkats, Stuartt Corder, Richard Hills, Ryohei Kawabe, Luke Maud, Koh-Ichiro Morita, Bojan Nikolic, Remo P. J. Tilanus, Catherine Vlahakis

Proceedings Volume 9906, 99064X (2016) https://doi.org/10.1117/12.2231846

KEYWORDS: Atmospheric corrections, Atmospheric sciences, Atmospheric corrections, Atmospheric sensing, Calibration, Antennas, Turbulence, Atmospheric modeling, Astronomy, Signal detection, Statistical analysis

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Proceedings Article | 27 July 2016 Paper

Paper

The Greenland Telescope: antenna retrofit status and future plans

Philippe Raffin, Paul T. Ho, Keiichi Asada, Raymond Blundell, Geoffrey Bower, Roberto Burgos, Chih-Cheng Chang, Ming-Tang Chen, Robert Christensen, You-Hua Chu, Paul Grimes, C. Han, Chih-Wei Huang, Yau-De Huang, Fang-Chia Hsieh, Makoto Inoue, Patrick Koch, Derek Kubo, Steve Leiker, Lupin Lin, Ching-Tang Liu, Shih-Hsiang Lo, Pierre Martin-Cocher, Satoki Matsushita, Masanori Nakamura, Zheng Meyer-Zhao, Hiroaki Nishioka, Tim Norton, George Nystrom, Scott Paine, Nimesh Patel, Hung-Yi Pu, William Snow, T. Sridharan, Ranjani Srinivasan, Jackie Wang

Proceedings Volume 9906, 99060U (2016) https://doi.org/10.1117/12.2232889

KEYWORDS: Antennas, Telescopes, Reflectors, Astrophysics, Electronics, Receivers, Space telescopes, Servomechanisms, 3D modeling, Foam

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Proceedings Article | 23 July 2014 Paper

Paper

Instrumentation for single-dish observations with The Greenland Telescope

Paul Grimes, K. Asada, R. Blundell, R. Burgos, H-H. Chang, M. Chen, D. Goldie, C. Groppi, C. Han, P. T. Ho, Y. Huang, M. Inoue, D. Kubo, P. Koch, J. Leech, E. de Lera Acedo, P. Martin-Cocher, H. Nishioka, M. Nakamura, S. Matsushita, S. Paine, N. Patel, P. Raffin, W. Snow, T. Sridharan, R. Srinivasan, C. Thomas, E. Tong, M.-J. Wang, C. Wheeler, S. Withington, G. Yassin, L.-Z. Zeng

Proceedings Volume 9153, 91531V (2014) https://doi.org/10.1117/12.2056969

KEYWORDS: Antennas, Telescopes, Terahertz radiation, Prototyping, Galactic astronomy, Astronomy, Heterodyning, Receivers, Field programmable gate arrays, Observatories

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The Greenland Telescope project will deploy and operate a 12m sub-millimeter telescope at the highest point of the Greenland i e sheet. The Greenland Telescope project is a joint venture between the Smithsonian As- trophysical Observatory (SAO) and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA). In this paper we discuss the concepts, specifications, and science goals of the instruments being developed for single-dish observations with the Greenland Telescope, and the coupling optics required to couple both them and the mm-VLBI receivers to antenna. The project will outfit the ALMA North America prototype antenna for Arctic operations and deploy it to Summit Station,1 a NSF operated Arctic station at 3,100m above MSL on the Greenland I e Sheet. This site is exceptionally dry, and promises to be an excellent site for sub-millimeter astronomical observations. The main science goal of the Greenland Telescope is to carry out millimeter VLBI observations alongside other telescopes in Europe and the Americas, with the aim of resolving the event horizon of the super-massive black hole at the enter of M87. The Greenland Telescope will also be outfitted for single-dish observations from the millimeter-wave to Tera-hertz bands. In this paper we will discuss the proposed instruments that are currently in development for the Greenland Telescope - 350 GHz and 650 GHz heterodyne array receivers; 1.4 THz HEB array receivers and a W-band bolometric spectrometer. SAO is leading the development of two heterodyne array instruments for the Greenland Telescope, a 48- pixel, 325-375 GHz SIS array receiver, and a 4 pixel, 1.4 THz HEB array receiver. A key science goal for these instruments is the mapping of ortho and para H2D+ in old protostellar ores, as well as general mapping of CO and other transitions in molecular louds. An 8-pixel prototype module for the 350 GHz array is currently being built for laboratory and operational testing on the Greenland Telescope. Arizona State University are developing a 650 GHz 256 pixel SIS array receiver based on the KAPPa SIS mixer array technology and ASIAA are developing 1.4 THz HEB single pixel and array receivers. The University of Cambridge and SAO are collaborating on the development of the CAMbridge Emission Line Surveyor (CAMELS), a W-band `on- hip' spectrometer instrument with a spectral resolution of R ~ 3000. CAMELS will consist of two pairs of horn antennas, feeding super conducting niobium nitride filter banks read by tantalum based Kinetic Inductance Detectors.

Proceedings Article | 22 July 2014 Paper

Paper

Phase characteristics of the ALMA 3-km baseline data

Satoki Matsushita, Yoshiharu Asaki, Ryohei Kawabe, Ed Fomalont, Denis Barkats, Stuartt Corder

Proceedings Volume 9145, 91453I (2014) https://doi.org/10.1117/12.2056424

KEYWORDS: Antennas, Atmospheric corrections, Radiometry, Atmospheric sensing, Astronomy, Fast packet switching, Diamond, Turbulence, Switching, Calibration

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Proceedings Article | 22 July 2014 Paper

Paper

The Greenland Telescope (GLT): antenna status and future plans

Philippe Raffin, Juan Carlos Algaba-Marcosa, Keiichi Asada, Raymond Blundell, Roberto Burgos, Chih-Cheng Chang, Ming-Tang Chen, Robert Christensen, Paul Grimes, C. Han, Paul T. Ho, Yau-De Huang, Makoto Inoue, Patrick Koch, Derek Kubo, Steve Leiker, Ching-Tang Liu, Pierre Martin-Cocher, Satoki Matsushita, Masanori Nakamura, Hiroaki Nishioka, George Nystrom, Scott Paine, Nimesh Patel, Nicolas Pradel, Hung-Yi Pu, H.-Y. Shen, William Snow, Tirupati Sridharan, Ranjani Srinivasan, Edward Tong, Jackie Wang

Proceedings Volume 9145, 91450G (2014) https://doi.org/10.1117/12.2056836

KEYWORDS: Antennas, Telescopes, Inspection, Prototyping, Servomechanisms, Computer programming, Manufacturing, Carbon, Reflectors, Astrophysics

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Proceedings Article | 22 July 2014 Paper

Paper

ALMA fast switching phase calibration on long baselines

Yoshiharu Asaki, Satoki Matsushita, Ryohei Kawabe, Ed Fomalont, Denis Barkats, Stuartt Corder

Proceedings Volume 9145, 91454K (2014) https://doi.org/10.1117/12.2055824

KEYWORDS: Interferometers, Phase interferometry, Calibration, Switching, Fast packet switching, Antennas, Observatories, Radiometry, Astronomy, Telescopes

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Proceedings Article | 8 July 2014 Paper

Paper

225GHz opacity measurements at Summit camp, Greenland, for the GreenLand Telescope (GLT) site testing

Pierre Martin-Cocher, Keiichi Asada, Satoki Matsushita, Ming-Tang Chen, Paul Ho, Chien-Ping Chen

Proceedings Volume 9147, 91473N (2014) https://doi.org/10.1117/12.2056272

KEYWORDS: Opacity, Radiometry, Telescopes, Temperature metrology, Astronomy, Astronomical telescopes, Transparency, Astrophysics, Observatories, Terahertz radiation

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Proceedings Article | 10 October 2012 Paper

Paper

ALMA temporal phase stability and the effectiveness of water vapor radiometer

Satoki Matsushita, Koh-Ichiro Morita, Denis Barkats, Richard Hills, Edward Fomalont, Bojan Nikolic

Proceedings Volume 8444, 84443E (2012) https://doi.org/10.1117/12.925872

KEYWORDS: Atmospheric corrections, Radiometry, Astronomy, Antennas, Atmospheric optics, Data corrections, Radio astronomy, Data integration, Imaging systems, Interferometry

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Proceedings Article | 17 September 2012 Paper

Paper

ACA phase calibration scheme with the ALMA water vapor radiometers

Yoshiharu Asaki, Satoki Matsushita, Koh-Ichiro Morita, Bojan Nikolic

Proceedings Volume 8444, 84443K (2012) https://doi.org/10.1117/12.925986

KEYWORDS: Antennas, Interferometry, Phase interferometry, Calibration, Interferometers, Radiometry, Phase measurement, Astronomy, Observatories, Data corrections

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Proceedings Article | 17 September 2012 Paper

Paper

Opacity measurements at Summit Camp on Greenland and PEARL in northern Canada with a 225 GHz tipping radiometer

Keiichi Asada, Pierre Martin-Cocher, Chien-Ping Chen, Satoki Matsushita, Ming-Tang Chen, Yau-De Huang, Makoto Inoue, Paul Ho, Scott Paine, Eric Steinbring

Proceedings Volume 8444, 84441J (2012) https://doi.org/10.1117/12.925793

KEYWORDS: Opacity, Radiometry, Transparency, Astronomy, Temperature metrology, Telescopes, Astrophysics, Analytical research, Atmospheric physics, Geophysics

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Proceedings Article | 17 September 2012 Paper

Paper

ALMA system verification

Richard Sramek, Koh-Ichiro Morita, Masahiro Sugimoto, Peter Napier, Maurizio Miccolis, Pavel Yagoubov, Denis Barkats, William Dent, Satoki Matsushita, Nicholas Whyborn, Shin'ichiro Asayama, Javier Marti Canales, Ravinder Bhatia, Eugene DuVall, Samantha Blair

Proceedings Volume 8444, 84442K (2012) https://doi.org/10.1117/12.925449

KEYWORDS: Antennas, Calibration, Telescopes, Switching, Astronomy, Phase shifts, Interferometry, Image quality, Optical instrument design, Systems engineering

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Proceedings Article | 27 June 2006 Paper

Paper

Elevation angle dependence of the SMA antenna focus position

Satoki Matsushita, Masao Saito, Kazushi Sakamoto, Todd Hunter, Nimesh Patel, Tirupati Sridharan, Robert Wilson

Proceedings Volume 6275, 62751W (2006) https://doi.org/10.1117/12.670642

KEYWORDS: Antennas, Shape memory alloys, Jupiter, Reflectors, Astronomy, Radio optics, Telescopes, Planets, Oscillators, Temperature metrology

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Proceedings Article | 3 July 2000 Paper

Paper

FTS measurements of submillimeter opacity and other site testing at Pampa la Bola

Satoki Matsushita, Hiroshi Matsuo, Akihiro Sakamoto, Juan Pardo

Proceedings Volume 4015, (2000) https://doi.org/10.1117/12.390432

KEYWORDS: Opacity, Liquids, Fourier transforms, Absorption, Water, Phase measurement, Radiometry, Calibration, Atmospheric modeling, Observatories

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Proceedings Article | 31 July 1998 Paper

Paper

FTS measurements of submillimeter-wave opacity at Pampa la Bola

Hiroshi Matsuo, Akihiro Sakamoto, Satoki Matsushita

Proceedings Volume 3357, (1998) https://doi.org/10.1117/12.317417

KEYWORDS: Opacity, Temperature metrology, Fourier transforms, Atmospheric physics, Calibration, Spectroscopy, Radiometry, Interferometers, Observatories, Transparency

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Showing 5 of 25 publications

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