Abstract
A PZT type telescope for observations of gravity gradient and lunar rotation was developed, and a Bread Board Model (BBM) for ground experiments was completed. Some developments were made for the BBM such as a tripod with attitude control system, a stable mercury pool and a method for collecting the effects of vibrations. Laboratory experiments and field observations were performed from August to September of 2014, in order to check the entire system of the telescope and the software, and the results were compared to the centroid experiments which pursue the best accuracy of determination of the center of star images with a simple optical system. It was also investigated how the vibrations of mercury surface affect the centroid position on Charge Coupled Device (CCD). The results of the experiments showed that the effects of vibrations are almost common to stars in the same view, and they can be corrected by removing mean variation of the stars; and that the vibration of mercury surface can cause errors in centroid as large as 0.2 arcsec; and that there is a strong correlation between the Standard Deviation (SD) of variation of the centroid position and signal to noise ratio (SNR) of star images. It is likely that the accuracy of one (1) milli arcsecond is possible if SNR is high enough and the effects of vibrations are corrected.
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Yokoyama, K., Manabe, S. and Sakai, S., History of the International Polar Motion Service/Latitude Service, Polar Motion: Historical and Scientific Problems ASP Conference Series, 208, 2000 (Eds. S. Dick, D. McCarthy and B. Luzum), 2000, pp. 147–162.
Hirt, C. and Bürki, B., The Digital Zenith Camera—a new high-precision and economic astrogeodetic observation system for real-time measurement of deflections of the vertical, Proc. 3rd Meeting of the International Gravity and Geoid Commission of the International Association of Geodesy, Thessaloniki, Greece (ed. I. Tziavos), 2002, pp. 161–166.
Heiskanen, W. A. and Moritz, H., Physical geodesy, Freeman, 1966, p. 364.
Li, Z. X., Li, H., Li, Y.F. and Han, Y. B., Non-tidal variations in the deflection of the vertical at Beijing Observatory, J. Geodesy, 2005, vol. 78, pp. 588–593, doi 10.1007/s00190-004-0421-2
Hanada, H., Heki, H., Araki, H., Matumoto, K., Noda, H., Kawano, N., Tsubokawa, T., Tsuruta, S., Tazawa, S., Asari, K., Kono, Y., Yano, T., Gouda, N., Iwata, T., Yokoyama, T., Kanamori, H., Funazaki, K. and Miyazaki, T., Application of PZT telescope to Insitu Lunar Orientation Measurement (ILOM), International Association of Geodesy Symposia, 2004, vol. 128, pp. 163–168.
Noda, H., Heki, K. and Hanada, H., In-situ Lunar Orientation Measurement (ILOM): Simulation of observation, Adv. Space Res., 2008, vol. 42, pp. 358–362.
Williams, J. G., Boggs, D. H., Yoder, C. F., Ratcliff, J. T. and Dickey, J. O., Lunar rotational dissipation in solid body and molten core, J. Geophys. Res., 2001, vol. 106, pp. 27933–27968.
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. and Iwata, T., Development of a digital zenith telescope for advanced astrometry, Science China, 2012, vol. 55, pp. 723−732.
Hanada, H., Tsuruta, S., Asari, K., Araki, H., Noda, H., Kashima, S., Funazaki, K., Satoh, A., Taniguchi, H., Kato, H., Kikuchi, M., Sasaki, H., Hasegawa, T. and Gusev, A., Expected accuracy of a small telescope like PZT for observations of vertical gravity gradient and Lunar rotation 4th IAG Symposium on Terrestrial Gravimetry, 2016, 4th IAG Symposium on Terrestrial Gravimetry: Static and Mobile Measurements (TG-SMM 2016), St. Petersburg, 2016, pp. 220–227.
Noda, H., Thermal analyses for ILOM project, Report on the Research Meeting of Space Astronomy (Apr 16, 2004), 2004 (internal document).
Tsuruta, S., Noda, H., Hanada, H., and Asari, K., Temperature variation of a tube of the telescope for ILOM project on the lunar surface–results of simulations and experiments., Proc. 27th Solar System Exploration Symposium, 2005, pp. 73–76 (in Japanese).
Yano, T., Gouda, N., Kobayashi, Y., Tsujimoto, T., Nakajima, T., Hanada, H., Kan-ya, Y., Yamada, Y., Araki, H., Tazawa, S., Asari, K., Tsuruta, S. and Kawano, N., CCD Centroiding Experiment for the Japan Astrometry Satellite Mission (JASMINE) and In Situ Lunar Orientation Measurement (ILOM), Publ. Astr. Soc. Pacific, 2004, vol. 116, pp. 667–673.
Kashima, S., A telescope for In-Situ Lunar Orientation Measurement with a diffractive optical element, Patent Application No.2013-80826, 2013.
Kashima, S., Araki, H., Tsuruta, S., and Hanada, H., Proposal of adoption of DOE for In Situ Lunar Orientation Measurementss (ILOM), Proc. 31st Symposium on Techniques in Astronomy, 2011, pp. 80–82 (in Japanese).
Rabinovich, A. B., Seiches and harbor oscillations, Handbook of Coastal and Ocean Engineering (ed. Kim, Y.C.), 2009, pp. 193–236.
Tsuruta, S., Hanada, H., Araki, H., Asari, K., Kashima, S., Utsunomiya, S., and Kamiya, T., Experimental development of mercury pool for ILOM project, Proc. 32nd Symposium on Techniques in Astronomy, 2012, pp. 65–68 (in Japanese).
Tsuruta, S., Hanada, H., Asari, K., Chiba, K., Yokokawa, R., Inaba, K., Funazaki, K., Taniguchi, H., Satoh, A., Kato, H., Kikuchi, M., Araki, H., Noda, H., and Kashima, S., Imaging experiments with a mercury pool in the experimental model of a telescope for ILOM project, Proceedings of the 14th Space Science Symposium, 2014, pp. 250–253 (in Japanese).
Taniguchi, H., Vacuum test of the driving mechanism (5th report), Report on the Research Meeting of ILOM (June 25, 2012), 2012 (internal document).
Tsuruta, S., Hanada, H., Asari, K., and Tazawa, S., Experiments in simulated lunar surface environment (2), Proc. 30th Symposium on Techniques in Astronomy, 2011, pp. 105–108 (in Japanese).
Yano T., Araki, H., Gouda, N., Kobayashi, Y., Tsujimoto, T., Nakajima, T., Kawano, N., and Tazawa, S., CCD centroiding experiment for correcting a distorted image on the focal plane. Publ Astron Soc Pacific, 2006, vol. 118, pp. 1448–1454.
Lamb, H., Hydrodynamics, 6th ed., 1959, pp. 282–291.
Ishizaki, H., Discussion on the vibration of PZT mercury basin, Report Tokyo Astronomical Observatory, 1986, vol. 20, pp. 604–616 (in Japanese).
Zhai, C., Shao, M., Goullioud, R, and Nemati, B., Micro-pixel accuracy centroid displacement estimation and detector calibration, Proc. Roy. Soc. A., 2011, vol. 467, pp. 3550–3569.
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Published in Russian in Giroskopiya i Navigatsiya, 2017, No. 3, pp. 130–152.
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Hanada, H., Tsuruta, S., Asari, K. et al. Development of a small telescope like PZT and effects of vibrations of mercury surface and ground noise. Gyroscopy Navig. 8, 304–319 (2017). https://doi.org/10.1134/S207510871704006X
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DOI: https://doi.org/10.1134/S207510871704006X