Table 1
Meteoroid orbital data analysed in this study, focusing on their hyperbolic fraction and ordered according to the size of the sample of meteor observations (see also Sect. 2.1).
| All orbits | Hyperbolic orbits | 3σ hyperbolics | |||
|---|---|---|---|---|---|
| Database | # | # | % | # | % |
| GMN | 574 515 | 47 501 | 8.27 | 7796 | 1.36 |
| CAMS | 471 582 | 55 937 | 11.86 | 13 692 | 2.90 |
| FRIPON | 6932 | 835 | 12.05 | 18 | 0.26 |
| Ondrejov | 840 | 17 | 2.02 | 2 | 0.24 |
| EFN | 824 | 18 | 2.18 | 2 | 0.24 |
| CNEOS | 292 | 6 | 2.05 | – | – |
Notes. Columns from left to right: database acronym; total number of orbits reported in the version of the database taken under consideration; number and percentage of hyperbolic orbits and of orbits that remain hyperbolic after a 3σ (one-sided, 99.86%) confidence level test, according to the uncertainties given in the database. The CNEOS database does not report uncertainties for its parameters, the last two columns are therefore empty. References: GMN (Vida et al. 2021b), CAMS (Jenniskens et al. 2011), FRIPON (Jeanne et al. 2019; Colas et al. 2020), Ondřejov (Koten et al. 2003), EFN (Borovička et al. 2022b), CNEOS (Brown et al. 2002).
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