Abstract
The Hinode Solar Optical Telescope (SOT) is the first space-borne visible-light telescope that enables us to observe magnetic-field dynamics in the solar lower atmosphere with 0.2 – 0.3 arcsec spatial resolution under extremely stable (seeing-free) conditions. To achieve precise measurements of the polarization with diffraction-limited images, stable pointing of the telescope (<0.09 arcsec, 3σ) is required for solar images exposed on the focal plane CCD detectors. SOT has an image stabilization system that uses image displacements calculated from correlation tracking of solar granules to control a piezo-driven tip-tilt mirror. The system minimizes the motions of images for frequencies lower than 14 Hz while the satellite and telescope structural design damps microvibration in higher frequency ranges. It has been confirmed from the data taken on orbit that the remaining jitter is less than 0.03 arcsec (3σ) on the Sun. This excellent performance makes a major contribution to successful precise polarimetric measurements with 0.2 – 0.3 arcsec resolution.
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Ballesteros, E., Collados, M., Bonet, J.A., Lorenzo, F., Viera, T., Reyes, M., Rodríguez, Hidalgo, I.: 1996, Astron. Astrophys. 115, 353.
Handy, B.N., Acton, L.W., Kankelborg, C.C., Wolfson, C.J., Akin, D.J., Bruner, M.E., et al.: 1999, Solar Phys. 187, 229.
Ichimoto, K., Lites, B., Elmore, D., Suematsu, Y., Tsunete, S., Katsukawa, Y., et al.: 2007, Solar Phys., submitted.
Kosugi, T., Matsuzaki, K., Sakao, T., Shimizu, T., Sone, Y., Tachikawa, S., et al.: 2007, Solar Phys. 243, 3.
Molodij, G., Rayrole, J., Madec, P.Y., Colson, F.: 1996, Astron. Astrophys. Suppl. 118, 179.
Shimizu, T.: 2005, In: Sakurai, T., Sekii, T. (eds.) The Solar-B Mission and the Forefront of Solar Physics, Astron. Soc. Pacific Conf. Ser. 325, 3.
Shimizu, T., Nagata, S., Edwards, C., Tarbell, T., Kashiwagi, Y., Kodeki, K., et al.: 2004, In: Mather, J.C. (ed.) Optical, Infrared, and Millimeter Space Telescopes, Proc. SPIE 5487, 1199.
Suematsu, Y., Tsuneta, S., Ichimoto, K., Shimizu, T., Otsubo, M., Katsukawa, Y., et al.: 2007, Solar Phys., submitted.
Takahara, O., Yoshida, N., Minesugi, K., Hashimoto, T., Ninomiya, K., Ichimoto, K., et al.: 2004, In: Proceedings of the 24th International Symposium on Space Technology and Science (CDROM), The Japan Society for Aeronautical and Space Science, paper 2004-C-16.
Tarbell, T.D., et al.: 2007, Solar Phys., submitted.
Tsuneta, S., Suematsu, Y., Ichimoto, K., Shimizu, T., Otsubo, M., Nagata, S., et al.: 2007, Solar Phys., submitted.
van der Lühe, O., Widener, A.L., Rimmele, T., Spence, G., Dunn, R.B., Wiborg, P.: 1989, Astron. Astrophys. 224, 351.
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K. Kobayashi now at NASA/Marshall Space Flight Center, Huntsville, AL 35812, USA.
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Shimizu, T., Nagata, S., Tsuneta, S. et al. Image Stabilization System for Hinode (Solar-B) Solar Optical Telescope. Sol Phys 249, 221–232 (2008). https://doi.org/10.1007/s11207-007-9053-z
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DOI: https://doi.org/10.1007/s11207-007-9053-z