Research accomplishments - Ito Takashi

Moving object detection from multi-depth images with an attention-enhanced convolutional neural network

Publications of the Astronomical Society of Japan    2026.02.05

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FOSSIL. IV. The Significance-convergence Test—An Algorithm for Selecting Reliable Rotation Periods of Small Solar System Bodies

Publications of the Astronomical Society of the Pacific    2025.10.01

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An Extremely Deep Rubin Survey to Explore the Extended Kuiper Belt and Identify Objects Observable by New Horizons

The Astrophysical Journal Supplement Series    2025.09

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Discovery and dynamics of a Sedna-like object with a perihelion of 66 au

Nature Astronomy    2025.09

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Libration of Pluto's argument of perihelion and the role of the major planets

Celestial Mechanics and Dynamical Astronomy    2025.08

ISSN: 0923-2958

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Orbital Evolution of Distant Comets under Interstellar Gas Drag during the Solar System’s Motion through the Galaxy

2025.07.09

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Characterization of the Deep, Extended Kuiper Belt in the Galactic Disk

arXiv e-prints    2025.03

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Yarkovsky and YORP effects simulation on 3200 Phaethon

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences    2025.02.27

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The Doubly Librating Plutinos

The Astrophysical Journal    2025.02.10

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Re-recognized universality of Kozai oscillation on three-body dynamics

Proceedings of the Japan Academy, Series B    2025

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An estimate of resident time of the Oort Cloud new comets in planetary region

Planetary and Space Science    2024.11

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Candidate Distant Trans-Neptunian Objects Detected by the New Horizons Subaru TNO Survey

The Planetary Science Journal    2024.10

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A deep analysis for New Horizons’ KBO search images

Publications of the Astronomical Society of Japan    2024.08.01

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Formation of the four terrestrial planets in the Jupiter–Saturn chaotic excitation scenario: fundamental properties and water delivery

Icarus    2024.07

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The Lidov-Kozai oscillation and Hugo von Zeipel

2024.05.02

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Is There an Earth-like Planet in the Distant Kuiper Belt?

The Astronomical Journal    2023.09.01

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FOSSIL. III. Lightcurves of 371 Trans-Neptunian Objects

The Astrophysical Journal Supplement Series    2023.08.01

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What long-period comets tell us about the Oort Cloud

Astronomy & Astrophysics    2023.08

ISSN: 0004-6361

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Author Correction: Astronomical forcing shaped the timing of early Pleistocene glacial cycles

Communications Earth & Environment    2023.07.03

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A DEEP ANALYSIS FOR NEW HORIZONS' TNO SEARCH IMAGES

2023.06.07

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Astronomical forcing shaped the timing of early Pleistocene glacial cycles

Communications Earth & Environment    2023.05.15

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Terrestrial planet and asteroid belt formation by Jupiter-Saturn chaotic excitation

Scientific Reports    2023.03

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Conditions for the long term stability of Pluto's azimuthal and latitudinal perihelion librations

2022.06.13

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Pluto near the edge of chaos

Proceedings of the National Academy of Sciences    2022.04.12

ISSN: 0027-8424

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FOSSIL. II. The Rotation Periods of Small-sized Hilda Asteroids

The Astrophysical Journal Supplement Series    2022.03.01

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Polarimetric properties of the near-Sun asteroid (155140) 2005 UD in comparison with other asteroids and meteoritic samples

Monthly Notices of the Royal Astronomical Society    2022.01

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FOSSIL. I. The Spin Rate Limit of Jupiter Trojans

The Planetary Science Journal    2021.10.01

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Comparison of original orbits of Oort Cloud new comets given in various catalogues II. Different solutions from different observations

2021.06.26

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Dynamical lifetime of the Oort Cloud new comets under planetary perturbation

2020.11.24

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Comparison of original orbits of Oort Cloud new comets given in various catalogues

2020.11.12

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Comparison of original orbits of Oort Cloud new comets given in various catalogues

2020.08.15

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Erratum: A comparative study of size frequency distributions of Jupiter Trojans, Hildas and main belt asteroids: A clue to planet migration history (corrigendum) (Planetary and Space Science (2019) 169 (78–85), (S0032063317304609), (10.1016/j.pss.2019.02.003))

Planetary and Space Science    2020

ISBN: 00320633

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Full rotationally phase-resolved visible reflectance spectroscopy of 3200 Phaethon

Planetary and Space Science    2020

ISBN: 00320633

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The Lidov-Kozai Oscillation and Hugo von Zeipel

Monographs on Environment, Earth and Planets    2019.11.08

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The Lidov-Kozai Oscillation and Hugo von Zeipel

Monographs on Environment, Earth and Planets    2019.11

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Constraining the Formation of the Four Terrestrial Planets in the Solar System

The Astrophysical Journal    2019.10.01

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Q-type asteroids: Possibility of non-fresh weathered surfaces

Publications of the Astronomical Society of Japan    2019.10.01

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Chaos in the inert Oort cloud

Astronomy and Astrophysics    2019.09

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A concept of hazardous NEO detection and impact warning system

Acta Astronautica    2019.03

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A comparative study of size frequency distributions of Jupiter Trojans, Hildas and main belt asteroids: A clue to planet migration history

Planetary and Space Science    2019

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Corrigendum: The "memory" of the Oort cloud (A&A (2018) 620 (A45) DOI: 10.1051/0004-6361/201833435)

Astronomy and Astrophysics    2019

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Extremely strong polarization of an active asteroid (3200) Phaethon

Nature Communications    2018.06.27

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Multi-band photometry of trans-Neptunian objects in the Subaru Hyper Suprime-Cam survey

Publications of the Astronomical Society of Japan    2018

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New NEO search technology using small telescopes and FPGA

IEEE Aerospace Conference Proceedings    2018

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Optical observations of NEA 3200 Phaethon (1983 TB) during the 2017 apparition

Astronomy and Astrophysics    2018

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The "memory" of the Oort cloud

Astronomy and Astrophysics    2018

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Terrestrial Planet Formation: Constraining the Formation of Mercury

The Astrophysical Journal    2017.04.01

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High-Order Analytic Expansion of Disturbing Function for Doubly Averaged Circular Restricted Three-Body Problem

Advances in Astronomy    2016

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Lightcurves of the Karin family asteroids

Icarus    2016

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The inner solar system cratering record and the evolution of impactor populations

Research in Astronomy and Astrophysics    2015

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FAST ROTATION OF A SUBKILOMETER-SIZED NEAR-EARTH OBJECT 2011 XA(3)

Astronomical Journal    2014

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Lightcurve of (4507) 1990 FV

Minor Planet Bulletin    2013.10

TERRESTRIAL PLANET FORMATION DURING THE MIGRATION AND RESONANCE CROSSINGS OF THE GIANT PLANETS

Astrophysical Journal    2013

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Asymmetric cratering on the moon: Numerical result from a new nea flux model

Advances in Geosciences    2012

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On the error reduction of a simple symplectic integrator

Publications of the Astronomical Society of Japan    2012

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A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method

Astronomy and Astrophysics    2011

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Advances in geosciences: Volume 25: Planetary science (PS)

Advances in Geosciences: Volume 25: Planetary Science (PS)    2011

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Asymmetric cratering on the Moon: Case of the raw near-Earth asteroid population

Advances in Geosciences: Volume 25: Planetary Science (PS)    2011

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Do meteoroids originating from near-earth asteroid (25143) itokawa exist?

Publications of the Astronomical Society of Japan    2011

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Solar system science with the hyper suprime-cam survey

Advances in Geosciences: Volume 25: Planetary Science (PS)    2011

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Young asteroid families and their lightcurve observation at Maidanak Observatory, Uzbekistan

Advances in Geosciences: Volume 25: Planetary Science (PS)    2011

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Asymmetric impacts of near-Earth asteroids on the Moon

Astronomy and Astrophysics    2010

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Near-infrared lightcurves of a very young asteroid, Karin

Advances in Geosciences: Volume 19: Planetary Science (PS)    2010

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Asymmetric impacts of near-earth asteroids on the moon

Advances in Geosciences: Volume 15: Planetary Science (PS)    2009

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Photometric observations of young asteroid families at maidanak observatory

Advances in Geosciences: Volume 15: Planetary Science (PS)    2009

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Solar-Radiation Heating Effects on 3200 Phaethon

Publications of the Astronomical Society of Japan    2009

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Spin rates of fast-rotating asteroids and fragments in impact disruption

Icarus    2009

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Apollo Asteroid 1999 YC: Another Large Member of the PGC?

Meteoritics and Planetary Science Supplement    2008.08

Quasi-Hilda comet 147P/Kushida-Muramatsu: Another long temporary satellite capture by Jupiter

Astronomy and Astrophysics    2008

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第四紀の氷期サイクルと日射量変動

地学雑誌    2007

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Apollo asteroids 1566 icarus and 2007 MK<inf>6</inf>: Icarus family members?

Astrophysical Journal    2007

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Color variation of a very young asteroid, Karin

Publications of the Astronomical Society of Japan    2007

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Subsystems in a stable planetary system

Publications of the Astronomical Society of Japan    2007

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Surface heterogeneity of 2005 UD from photometric observations

Astronomy and Astrophysics    2007

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Trends in 20th century Celestial Mechanics.

Publications of the National Astronomical Observatory of Japan    2007

A newborn asteroid 832 Karin with old and new surfaces - SUBARU spectroscopy

Advances in Space Research    2006

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Apollo asteroid 2005 UD: Split nucleus of (3200) Phaethon?

Astronomy and Astrophysics    2006

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Difference in degree of space weathering on newborn asteroid karin

Advances in Geosciences: Volume 3: Planetary Science (PS)    2006

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Dynamical transport of asteroid fragments from the v(6) resonance

Advances in Space Research    2006

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Lightcurves of the karin family asteroids

Advances in Geosciences: Volume 3: Planetary Science (PS)    2006

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Size distribution of asteroids and old terrestrial craters: Implications for asteroidal dynamics during LHB

Advances in Geosciences: Volume 3: Planetary Science (PS)    2006

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Inaccuracies of trigonometric functions in computer mathematical libraries

Publications of the National Astronomical Observatory of Japan    2005

The Origin of Planetary Impactors in the Inner Solar System

Science    2005

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Mature and fresh surfaces on the newborn asteroid Karin

Astrophysical Journal    2004

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Obliquity variations of terrestrial planets in habitable zones

Icarus    2004

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Photometric observations of a very young family-member asteroid (832) Karin

Publications of the Astronomical Society of Japan    2004

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Construction of Heterogeneous Computer System with GRAPE-5 and VPP5000 by using IMPI

33rd Symposium on Celestial Mechanics, Dedicated to Donald Saari for his 60th Birthday    2002

Long-term integrations and stability of planetary orbits in our solar system

Monthly Notices of the Royal Astronomical Society    2002

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Response of lifespan of organisms to secularly changing environment using a new dynamical model.

33rd Symposium on Celestial Mechanics, Dedicated to Donald Saari for his 60th Birthday    2002

An estimation of upper limit masses of v andromedae planets

Astrophysical Journal    2001

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Chaos and stability of the solar system

Proceedings of the National Academy of Sciences of the United States of America    2001

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Stability of terrestrial protoplanet systems and alignment of orbital elements

Publications of the Astronomical Society of Japan    2001

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Lifespan of Organisms and the Secular Change of the Environment

31st Symposium on Celestial Mechanics    2000

An astronomical data archive system with a Java-based user interface

Publications of the Astronomical Society of Japan    1999

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Stability and Instability of the Terrestrial Protoplanet System and Their Possible Roles in the Final Stage of Planet Formation

Icarus    1999

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Development of a data archival system MOKA2.

Report of the National Astronomical Observatory of Japan    1997.03

Report on the Adac Astronomical Catalog Data Service System

Baltic Astronomy    1997.03

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VPP300 series in National Astronomical Observatory

Fujitsu Scientific Technical Journal    1997.01

Parallelized extrapolation method and its application to the orbital dynamics

Astronomical Journal    1997

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Report on the ADAC astronomical catalog data service system

Baltic Astronomy    1997

VPP300 series in National Astronomical Observatory

Fujitsu Scientific and Technical Journal    1997

VPP300 series in National Astronomical Observatory.

Fujitsu Scientific Technical Journal    1996

Development of the management and server systems for astronomical catalog data.

Report of the National Astronomical Observatory of Japan    1995.11

An archival system for observational data obtained at the Okayama and Kiso observatories. II.

Publications of the National Astronomical Observatory of Japan    1995

Climate friction: A possible cause for secular drift of Earth's obliquity

Journal of Geophysical Research    1995

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Climate friction: a possible cause for secular drift of Earth's obliquity

Journal of Geophysical Research    1995

Long term evolution of the solar insolation variation over 4Ga

Proc. Japan Acad., Ser. B    1993

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