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Table 1
Residuals in demodulated flat-field frames per Stokes parameter as mean peak to valley variation within a continuum region after dark field correction and after applying the spectroflat flat-field corrections to the flat-field data themselves.
| Instrument | D(FF′) | D(FF(1)) | ||
|---|---|---|---|---|
| TRIPPLE-SP | 〈I〉 | 25.26 | 3.52 | |
| (SST) | Q/I | 0.58 | 0.07 | |
| U/I | 0.85 | 0.09 | ||
| V/I | 0.66 | 0.07 | ||
| SUSI | 〈I〉 | 27.20 | 25.01 | |
| (SUNRISE-III) | Q/I | 0.63 | 0.06 | |
| U/I | 0.45 | 0.15 | ||
| V/I | 0.54 | 0.24 | ||
| GRIS | 〈I〉 | 49.23 | 5.22 | |
| (GREGOR) | Q/I | 0.49 | 0.18 | |
| U/I | 0.32 | 0.17 | ||
| V/I | 0.71 | 0.18 | ||
Notes. Reduction symbols as in Sect. 2.6, values are 10−2.
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