Table 1.
Comparison of the characteristics of the noiseless and noisy SOMs.
| SOM parameter | Noiseless SOM | Noisy SOM |
|---|---|---|
| Training expression | 36 colours & IE magnitude | 36 colours & IE magnitude |
| Dimension | 75 × 150 | 101 × 101 |
| Topology | Flat and edge limited | toroidal and continuous |
| Cell type | Hexagon | Hexagon |
| Data threshold | [0, 30] mag | [0, 30] mag; S/N(IE) > 5 |
| Training iterations | 200 | 200 |
Notes. The noiseless SOM Masters et al. (2015) layout, trained on noiseless Flagship2 photometry. Opposed to the noiseless SOM, the noisy SOM is not trained on a wide field sub-sample, but on the respective calibration sample, generated from the noiseless SOM.
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