Table 4
Rough predictions for the number of trails seen per-observing-hour and the fraction of observational data per-telescope affected in 2030 for the three CTA telescope classes.
| Telescope class | FoV size [°] | Average trails per hour [counts] | Observing time affected [%] |
|---|---|---|---|
| Small | 9.0 | 15 | 5 |
| Medium | 8.0 | 12 | 4 |
| Large | 4.3 | 3 | 2 |
Notes. These are based on the assumption that the linear trends (fitted to the 1658 trails we detect) shown in Figs. 2 and 9 continue, that no mitigation measures are taken, and scaling relative to the FoV of the current CT5 camera (3.4°). These estimates are subject to large uncertainties with respect to future satellite launches, instrument design and also significant extrapolation from current data, and as such should be treated with caution.
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