Search Results - "Tsuruta, Seiitsu"
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Dynamic precise orbit determination of Hayabusa2 using laser altimeter (LIDAR) and image tracking data sets
Published in Earth, planets, and space (12-06-2020)“…The precise orbit of the Hayabusa2 spacecraft with respect to asteroid Ryugu is dynamically determined using the data sets collected by the spacecraft’s…”
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Alignment determination of the Hayabusa2 laser altimeter (LIDAR)
Published in Earth, planets, and space (20-01-2021)“…In this study, we determined the alignment of the laser altimeter aboard Hayabusa2 with respect to the spacecraft using in-flight data. Since the laser…”
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Thermo-optical simulation and experiment for the assessment of single, hollow, and large aperture retroreflector for lunar laser ranging
Published in Earth, planets, and space (07-06-2016)“…A single aperture and hollow retroreflector [corner-cube mirror (CCM)] that in principle has no internal optical path difference is a key instrument for…”
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A simulation study for anticipated accuracy of lunar gravity field model by SELENE tracking data
Published in Advances in space research (18-07-2008)“…Results of numerical simulations are presented to examine the global gravity field recovery capability of the Japanese lunar exploration project SELENE…”
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Effects of Phase Characteristics of Telescopes on Same-Beam Differential VLBI
Published in IEEE transactions on antennas and propagation (01-05-2007)“…Phase characteristics, which are systematic phase offsets across the main beam of an actual telescope, may be a problem for achieving the same-beam…”
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Development of a digital zenith telescope for advanced astrometry
Published in Science China. Physics, mechanics & astronomy (01-04-2012)“…Like other optical astrometric techniques, the Photographic Zenith Tube (PZT) has played a key role in the past observations of the Earth rotation, and it also…”
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Overview of Differential VLBI Observations of Lunar Orbiters in SELENE (Kaguya) for Precise Orbit Determination and Lunar Gravity Field Study
Published in Space science reviews (01-07-2010)“…The Japanese lunar explorer SELENE (Kaguya), which was launched on September 14th, 2007, was the target of VLBI observations over the period November 2007 to…”
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Effect of Phase Pattern of Antennas Onboard Flying Spin Satellites on Doppler Measurements
Published in IEEE transactions on aerospace and electronic systems (01-01-2011)“…The effect of the phase patterns of antennas onboard flying spin satellites on the Doppler measurements is reported. Phase patterns mean that there are…”
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CCD Centroiding Experiment for Correcting a Distorted Image on the Focal Plane
Published in Publications of the Astronomical Society of the Pacific (01-10-2006)“…JASMINE(Japan Astrometry Satellite Mission for Infrared Exploration) andILOM(In situ Lunar Orientation Measurement) are space missions that are in progress at…”
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CCD Centroiding Experiment for theJapan Astrometry Satellite Mission(JASMINE) andIn Situ Lunar Orientation Measurement(ILOM)
Published in Publications of the Astronomical Society of the Pacific (01-07-2004)“…JASMINEandILOMare space missions that are in progress at the National Astronomical Observatory of Japan. These two projects require a common astrometric…”
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VLBI observation of narrow bandwidth signals from the spacecraft
Published in Earth, planets, and space (01-01-2004)“…We carried out a series of VLBI observations of Nozomi by using a dedicated narrow bandwidth VLBI system. The three carrier waves with frequency interval of…”
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Improving Hayabusa2 trajectory by combining LIDAR data and a shape model
Published in Icarus (New York, N.Y. 1962) (01-03-2020)“…Precise information of spacecraft position with respect to target body is of importance in terms of scientific interpretation of remote sensing data. In case…”
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Same-beam VLBI observations of SELENE for improving lunar gravity field model
Published in Radio science (09-04-2010)“…The Japanese lunar mission, Selenological and Engineering Explorer (Kaguya), which was successfully launched on 14 September 2007, consists of a main satellite…”
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New method of measuring phase characteristics of antenna using Doppler frequency measurement technique
Published in IEEE transactions on antennas and propagation (01-12-2004)“…This paper reports on a new method of measuring the phase characteristics of an antenna using the Doppler frequency measurement technique. With this method,…”
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J-Net Galactic-Plane Survey of VLBI Radio Sources for VLBI Exploration of Radio Astrometry (VERA)
Published in Publications of the Astronomical Society of Japan (01-08-2000)“…In order to search for new VLBI sources in the galactic plane that can be used as phase reference sources in differential VLBI, we conducted 22 GHz…”
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Gravity changes at the Esashi Gravity Station observed by the absolute gravimeter with a rotating vacuum pipe
Published in Bulletin Géodésique (01-03-1994)Get full text
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Application of phase-stabilized optical fiber in transmission of reference and IF signals in VLBI observation
Published in IEEE transactions on instrumentation and measurement (01-06-1992)“…A phase-stabilized optical fiber (PSOF) cable, which is 880 m long, was successfully used to transmit a 100-520 MHz IF signal and 10 MHz reference frequency…”
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Four-way Doppler tracking for lunar gravity measurements executed by Kaguya and its relay satellite: Okina
Published in 2009 15th Asia-Pacific Conference on Communications (01-10-2009)“…SELENE (Selenological and Engineering Explorer) is a Japan's lunar probe which was launched and injected into the lunar polar orbit in 2007. The Main Orbiter…”
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