Abstract
The Hinode/Spectro-Polarimeter (SP) is the first space-borne precision spectro-polarimeter for the study of solar phenomena. It is primarily intended for measuring the solar photospheric vector magnetic field at high spatial and spectral resolution. This objective requires that the data are calibrated and conditioned to a high degree of precision. We describe how the calibration package SP_PREP for the SP operates.
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Notes
For the Hinode dual-beam polarimeter, the dual-beam system separates the two polarizations near the focal plane of the spectrograph and images them separately on two sides of the SP CCD. Throughout, the two images are referred to as CCDSIDE0 and CCDSIDE1.
These plots along with the calibrated data may be accessed and browsed at the HAO/NCAR Hinode/SP data download site http://www.csac.hao.ucar.edu/csac/dataHostSearch.jsp by clicking on the link “thermal drift” for drift along the slit, and “line center”. The ordinates of the plots are labeled in pixels.
Data during the first two weeks of the mission experienced much more rapid thermal movement of the image. For that period, a smoothing window of about 50 seconds was adopted.
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Acknowledgements
We thank the many people in the USA, Japan, and the UK whose involvement in developing the Hinode mission was indispensable to its success. We also thank A. de Wijn for his critique of the manuscript prior to submission, and an anonymous referee, who provided many very helpful comments and suggestions. Hinode is a Japanese mission developed and launched by ISAS/JAXA, collaborating with NAOJ as a domestic partner, NASA and STFC (UK) as international partners. Scientific operation of the Hinode mission is conducted by the Hinode science team organized at ISAS/JAXA. This team mainly consists of scientists from institutes in the partner countries. Support for the post-launch operation is provided by JAXA and NAOJ (Japan), STFC (UK), NASA, ESA, and NSC (Norway). The FPP project at LMSAL and HAO is supported by NASA contract NNM07AA01C. The National Center for Atmospheric Research is sponsored by the National Science Foundation.
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Lites, B.W., Ichimoto, K. The SP_PREP Data Preparation Package for the Hinode Spectro-Polarimeter . Sol Phys 283, 601–629 (2013). https://doi.org/10.1007/s11207-012-0205-4
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DOI: https://doi.org/10.1007/s11207-012-0205-4