Table 3.
Comparing agreement between individual exposures for the quasar J022836.08+000939.2 (Thing ID 97176486) for each correction.
| Wavelength range | Uncorrected | Margala | Our correction | Our correction | DR16 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (σ = const.) | (σ = const.) | (σ = f(λ)) | (σ = const.) | ||||||||
| λmin | λmax | ξ2 | σ(ξ2) | ξ2 | σ(ξ2) | ξ2 | σ(ξ2) | ξ2 | σ(ξ2) | ξ2 | σ(ξ2) |
| 3500 | 4538 | 7619.96 | 37.07 | 7598.39 | 37.07 | 7062.19 | 37.07 | 6915.53 | 37.07 | 7765.66 | 36.33 |
| 4538 | 6500 | 39 286.45 | 43.22 | 14 996.24 | 43.22 | 14 016.92 | 43.22 | 12 896.52 | 43.22 | 10 906.41 | 43.86 |
| 6500 | 8000 | 66 772.34 | 29.83 | 22 643.63 | 29.83 | 22 700.96 | 29.83 | 18 748.33 | 29.83 | 14 505.59 | 29.87 |
| 8000 | 10 400 | 85 504.20 | 31.43 | 30 719.66 | 31.43 | 32 314.00 | 31.43 | 24 981.35 | 31.43 | 20 376.50 | 31.43 |
| 3500 | 10 400 | 19 9182.95 | 71.89 | 75 957.92 | 71.89 | 76 094.08 | 71.89 | 63 541.73 | 71.89 | 53 554.16 | 71.92 |
Notes. The σ on the second line of the header refers to the seeing profile i.e. Eq. (6). The first two columns give the wavelength ranges over which the comparison statistic, ξ2 (Eq. (16)), are calculated. The subsequent columns give ξ2 and its estimated uncertainty, σ(ξ2), calculated from the number of degrees of freedom, Eq. (17). The number of degrees of freedom for the DR16 correction is very slightly different to the other cases but the difference is so small as to be negligible.
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