Table 2.
S/N degradation from 2024 to 2035 for VLT/FORS2 observations (200 kHz readout mode).
| Object | MASTER model | MASTER/ORDEM-scaled | ||||
|---|---|---|---|---|---|---|
| magnitude | z = 0° | z = 30° | z = 60° | z = 0° | z = 30° | z = 60° |
| [mag/arcsec2] | [%] | [%] | [%] | [%] | [%] | [%] |
| 27 | −7.28 | −7.17 | −6.97 | −20.16 | −20.44 | −20.29 |
| 26 | −6.22 | −6.12 | −6.01 | −19.88 | −20.15 | −19.99 |
| 25 | −4.59 | −4.50 | −4.50 | −19.20 | −19.44 | −19.33 |
| 24 | −2.80 | −2.75 | −2.80 | −17.67 | −17.84 | −17.83 |
| 23 | −1.44 | −1.41 | −1.46 | −14.73 | −14.80 | −14.94 |
| 22 | −0.65 | −0.64 | −0.67 | −10.40 | −10.37 | −10.63 |
Notes. Values show percentage decrease in S/N due to increasing debris-induced sky brightness. Calculations use debris-induced sky brightness only (excluding natural sky background of 100 μcd/m2) to isolate debris-specific effects. Complete instrument parameters and methodology in Appendix C.
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