Table 1
Filter properties at different positions.
| Pos. | Tilt | λ c | FWHM | λ m,i | m i | lgτ500 |
| (i) | angle | (nm) | (nm) | (nm) | (g cm-2) | |
|
|
||||||
| (1) | 1 2 |
396.84 | 0.12 | 396.81 | 0.17 | –2.62 |
| (2) | 25 |
396.74 | 0.14 | 396.71 | 0.90 | –1.31 |
| (3) | 30 |
396.67 | 0.16 | 396.64 | 1.40 | –0.96 |
| (4) | 37 |
396.57 | 0.18 | 396.51 | 2.18 | –0.74 |
| (5) | 42 |
396.47 | 0.19 | 396.43 | 2.61 | –0.42 |
| (6) | 48 |
396.34 | 0.22 | 396.33 | 3.04 | –0.37 |
| (7) | 64 |
395.93 | 0.28 | 395.88 | 3.56 | –0.27 |
Notes. The first column lists the position number as used in the text. λc is the central wavelength of the passband for each tilt angle and λm,i the effective wavelength defined in Sect. 4.1. mi is the average depth for the whole field of view computed using Eq. (4), and lgτ500 is the corresponding optical depth value in HolMul.
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