Browsing by Author "Sasaki S."

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  • Development of a digital zenith telescope for advanced astrometry 
    Hanada H.; Araki H.; Tazawa S.; Tsuruta S.; Noda H.; Asari K.; Sasaki S.; Funazaki K.; Satoh A.; Taniguchi H.; Kikuchi M.; Takahashi T.; Yamazaki A.; Ping J.; Kawano N.; Petrova N.; Gouda N.; Yano T.; Yamada Y.; Niwa Y.; Kono Y.; Iwata T. (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 has a potential to be applied to several other observations ...
  • Differential VLBI observations of two sub-satellites of SELENE (KAGUYA), OKINA and OUNA for lunar gravimetry 
    Hanada H.; Iwata T.; Kikuchi F.; Liu Q.; Matsumoto K.; Asari K.; Ishikawa T.; Ishihara Y.; Noda H.; Tsuruta S.; Petrova N.; Goossens S.; Harada Y.; Sasaki S.; Namiki N.; Kono Y.; Iwadate K.; Kameya O.; Jike T.; Shibata K.; Tamura Y.; Yahagi Y.; Masui W.; Tanaka K.; Maejima H.; Hong X.; Ping J.; Aili Y.; Ellingsen S.; Schlüter W. (2009)
    The Japanese lunar explorer SELENE (KAGUYA), which has been launched on Sep. 14th, 2007, utilizes VLBI observations in lunar gravimetry investigations. This can particularly improve the accuracy of the low degree gravitational ...
  • Overview of differential VLBI observations of lunar orbiters in SELENE (Kaguya) for precise orbit determination and lunar gravity field study 
    Hanada H.; Iwata T.; Liu Q.; Kikuchi F.; Matsumoto K.; Goossens S.; Harada Y.; Asari K.; Ishikawa T.; Ishihara Y.; Noda H.; Tsuruta S.; Petrova N.; Kawano N.; Sasaki S.; Sato K.; Namiki N.; Kono Y.; Iwadate K.; Kameya O.; Shibata K.; Tamura Y.; Kamata S.; Yahagi Y.; Masui W.; Tanaka K.; Maejima H.; Hong X.; Ping J.; Shi X.; Huang Q.; Aili Y.; Ellingsen S.; Schlüter W. (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 June 2009. These observations were made in order to improve the ...
  • Picosecond accuracy VLBI of the two subsatellites of SELENE (KAGUYA) using multifrequency and same beam methods 
    Kikuchi F.; Liu Q.; Hanada H.; Kawano N.; Matsumoto K.; Iwata T.; Goossens S.; Asari K.; Ishihara Y.; Tsuruta S.; Ishikawa T.; Noda H.; Namiki N.; Petrova N.; Harada Y.; Ping J.; Sasaki S. (2009)
    Same beam very long baseline interferometry (VLBI) observations of the two subsatellites of SELENE (KAGUYA) are demonstrated for purpose of the precise gravimetry of the Moon. Same beam VLBI contributes a great deal to ...

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