SOLAR/SOLSPEC: Scientific Objectives, Instrument Performance and Its Absolute Calibration Using a Blackbody as Primary Standard Source
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SOLAR is a set of three solar instruments measuring the total and spectral absolute irradiance from 16 nm to 3080 nm for solar, atmospheric and climatology physics. It is an external payload for the COLUMBUS laboratory launched on 7 February 2008. The mission’s primary objective is the measurement of the solar irradiance with the highest possible accuracy, and its variability using the following instruments: SOL-ACES (SOLar Auto-Calibrating EUV/UV Spectrophotometers) consists of four grazing incidence planar gratings measuring from 16 nm to 220 nm; SOLSPEC (SOLar SPECtrum) consists of three double gratings spectrometers, covering the range 165 nm to 3080 nm; and SOVIM (SOlar Variability Irradiance Monitor) is combining two types of absolute radiometers and three-channel filter – radiometers. SOLSPEC and SOL-ACES have been calibrated by primary standard radiation sources of the Physikalisch-Technische Bundesanstalt (PTB). Below we describe SOLSPEC, and its performance.
KeywordsInternational space station SOLAR SOLSPEC Sun spectrum PTB Solar irradiance
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- Kurucz, R.L., Bell, B.: 1995, CD Rom 23, Atomic lines list Smithonian Astrophysical Observatory (Cambridge). Google Scholar
- Thuillier, G., Woods, T.N., Cebula, R., Hilsenrath, E., Hersé, M., Labs, D.: 2004, In: Pap J., Fox P. (eds.) Solar Variability and its Effect on Climate, AGU Monograph 141, 171. Google Scholar
- Walker, J.H., Saunders, R.D., Jackson, J.K., Mc Sparron, D.A.: 1987, NBS Special Publication SP-250-20, 25. Google Scholar
- Woolliams, E., Cox, N., Fox, N., Harris, P.: 2006, In: CIPM Key Comparison, Spectral Irradiance 250 nm to 2500 nm (National Physical Laboratory report), 247. Google Scholar