Table 2
Statistics of the redshift precision.
| Sample | Mag bin |  (km s−1) |
σ∆υ (km s−1) | σNMAD (per cent) | N |
|---|---|---|---|---|---|
| Test | 17.0 < r ≤ 20.0 | 704.69 | 2833.20 | 0.71 | 504 |
| 20.0 < r ≤ 22.5 | 809.09 | 3083.64 | 0.94 | 2265 | |
| 22.5 < r ≤ 23.6 | 859.76 | 4333.32 | 1.51 | 983 | |
| 23.6 < r ≤ 24.3 | 372.16 | 4702.21 | 1.56 | 183 | |
| 1 deg2 test | 17.0 < r ≤ 20.0 | 1558.23 | 2753.08 | 0.75 | 35 |
| 20.0 < r ≤ 22.5 | 787.62 | 3212.02 | 0.86 | 104 | |
| 22.5 < r ≤ 23.6 | 2121.36 | 4577.93 | 1.80 | 58 | |
| 23.6 < r ≤ 24.3 | 2954.34 | 5542.67 | 1.41 | 9 | |
| SDSS cross-match sample | 17.0 < r ≤ 20.0 | 1667.23 | 2361.88 | 0.73 | 22 |
| 20.0 < r ≤ 22.5 | 1263.28 | 2625.00 | 0.88 | 61 | |
| 22.5 < r ≤ 23.6 | 1084.38 | NaN | 0.53 | 1 | |
Notes. Mean redshift offset (
), dispersion measured (σ∆υ), normalised median absolute deviation (σNMAD), and number of correctly classified quasars (N) in the samples test, 1 deg2 test, and SDSS cross-match. The mean offset indicates potential biases of our redshift estimate and the dispersion indicates our typical redshift error. The number of objects indicates how reliable the measured statistics are.
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