Abstract
The Spectral Irradiance Monitor (SIM) is a satellite-borne spectrometer aboard the Solar Radiation and Climate Experiment (SORCE) that measures solar irradiance between 200 and 2700 nm. This instrument employs a Fèry prism as a dispersing element, an electrical substitution radiometer (ESR) as the primary detector, and four additional photodiode detectors for spectral scanning. Assembling unit level calibrations of critical components and expressing the sensitivity in terms of interrelated measurement equations supplies the instrument's radiant response. The calibration and analysis of the spectrometer's dispersive and transmissive properties, light aperture metrology, and detector characteristics provide the basis for these measurement equations. The values of critical calibration parameters, such as prism and detector response degradation, are re-measured throughout the mission to correct the ground-based calibration.
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Brown, S. W., Eppeldauer, G. P., and Lykke, K. R.: 2000, Metrologia 37, 579.
Edlen, B.: 1953, J. Opt. Soc. Amer. 43, 339.
Fleming, J. C.: 1999, Reflectivity and BRDF of Nickel-Phosphor Black, Serial No. S99.41830.OPT.005, Ball Aerospace Corp., Boulder, CO.
Fontenla, J., White, O. R., Fox, P. A., Avrett, E. H., and Kurucz, R. L.: 1999, Astrophys. J. 518, 480.
Fowler, J. B., Saunders, R. D., and Parr, A. C.: 2000, Metrologia 37, 621.
Gere, J. M. and Timoshenko, S. P.: 1990, Mechanics of Materials, 3rd edn, PWS-Kent, Boston, Massachusetts, p. 76.
Harder, J. W., Lawrence, G., Fontenla, J., Rottman, G., and Woods, T.: 2005, Solar Phys., this volume.
Humbach, O., Fabian, H., Grzesik, U., Haken, U., and Heitmann, W.: 1996, J. Non-Cryst. Solids 203, 19.
Jenkins, F. A. and White, H. E.: 1976, Fundamentals of Optics, McGraw-Hill, New York.
Jorquera, C. R., Korde, R., Ford, V. G., Duval, V. G., and Bruegge, C. J.: 1994, Geoscience and Remote Sensing Symposium: Proceedings of the IGARSS '94, 8–12 August, Vol. 4, p. 1998.
Lawrence, G. M., Harder, J., Rottman, G., Woods, T., Richardson, J., and Mount, G.: 1998, SPIE Proc. 3427, 477.
Lawson, C. L. and Hanson, R. J.: 1974, Solving Least Squares Problems, Prentice-Hall, Englewood Cliffs, New Jersey, p. 222.
Malitson, I. H.: 1965, J. Opt. Soc. Amer. 55, 1205.
Parr, A. C.: 1996, A National Measurement System of Radiometry, Photometry, and Pyrometry Based Upon Absolute Detectors, NIST Technical Note 1421.
Press, W. H., Teukolsky, S. A., Vetterling, W. T., and Flannery, B. P.: 1992, Numerical Recipes in C: The Art of Scientific Computing, Cambridge University Press, New York.
Rottman, G., Harder, J., Fontenla, J., Woods, T., White, O., and Lawrence, G.: 2005, Solar Phys., this volume.
Saunders, R. D. and Shumaker, J. B.: 1986, Appl. Opt. 25, 20.
Standish, E. M.: 1982, Astron. Astrophys. 114, 297.
Thuillier, G., Hersé, M., Labs, D., Foujols, T., Peetermans, W., Gillotay, D., Simon, P., and Mandel, H.: 2003, Solar Phys. 214, 1.
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Harder, J.W., Fontenla, J., Lawrence, G. et al. The Spectral Irradiance Monitor: Measurement Equations and Calibration. Sol Phys 230, 169–204 (2005). https://doi.org/10.1007/s11207-005-1528-1
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DOI: https://doi.org/10.1007/s11207-005-1528-1