Table 2.
Time-averaged percentage of linear (LP) and circular (CP) polarization profiles above given σ-thresholds for level 1 GRIS-IFU/GREGOR, GRIS/GREGOR and IMaX/SUNRISE data.
| Instrument | Date (yyyy-mm-dd) | Start time [UT] | Mean Q 1σ value | σ-level | %LP | %CP | %LP + CP | %NP |
|---|---|---|---|---|---|---|---|---|
| GRIS-IFU | 2019-05-05 | 07:29:03 | 7.9 × 10−4 Ic | 3.0 | 52.7 | 61.9 | 35.8 | 21.2 |
| 4.0 | 11.5 | 30.4 | 5.4 | 63.6 | ||||
| 4.5 | 5.9 | 23.6 | 2.5 | 73.0 | ||||
| GRIS-IFU | 2019-05-06 | 07:33:27 | 8.1 × 10−4 Ic | 3.0 | 51.3 | 58.8 | 33.5 | 23.4 |
| 4.0 | 12.9 | 29.3 | 6.0 | 63.8 | ||||
| 4.5 | 6.6 | 21.3 | 2.7 | 74.8 | ||||
| GRIS | 2015-09-17 | 08:26:50 | 4.6 × 10−4 Ic | 3.0 | 42.3 | 50.1 | 23.0 | 30.7 |
| 4.5 | 8.3 | 26.8 | 3.2 | 68.1 | ||||
| IMaX | 2009-06-09 | 00:35:49 | 8.4 × 10−4 Ic | 3.0 | 2.3 | 12.0 | 0.7 | 86.4 |
| IMaX | 2009-06-09 | 01:30:40 | 8.4 × 10−4 Ic | 3.0 | 2.5 | 11.2 | 0.7 | 87.0 |
Notes. The percentages are calculated relative to the full FOV. The 1σ noise level is determined by the calculation of the standard deviation in the relevant Stokes vector at continuum wavelength(s).
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