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Fig. 7


Lightcurves of the integrated UV region 201 − 300 nm for SIM (red) and SATIRE-S (blue). The top panel shows the original data, with SATIRE-S normalised by multiplication to SIM, while the middle and bottom panels show the detrended (short-term variations) and smoothed (long-term trends) curves. One standard deviation error bars for the long-term stability of the instrument over these integrated wavelengths is 0.016 W m-2. The dotted line represents the solar minimum at December 2008 as in Fig. 5.

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