Classified by hyperbolic excess velocity, v-infinity = sqrt(mu-sun / |a|), computed by arrivals.earth from NASA/JPL orbital elements. Eccentricity above 1 alone is not sufficient.
| Object | Classification | v-infinity (km/s) | Observation arc (days) |
|---|---|---|---|
| C/2025 N1 (ATLAS) | INTERSTELLAR | 57.990348065855 | 280 |
| C/2019 Q4 (Borisov) | INTERSTELLAR | 32.277566526066 | 584 |
| 'Oumuamua (A/2017 U1) | INTERSTELLAR | 26.408853987296 | 80 |
| C/2023 F2 (SOHO) | UNCERTAIN | 17.556895179255 | |
| C/1999 U2 (SOHO) | UNCERTAIN | 17.382613965675 | 1 |
| C/1954 O1 (Vozarova) | UNCERTAIN | 9.1439831922983 | 79 |
| C/2012 E2 (SWAN) | UNCERTAIN | 7.9123991191923 | 2 |
| C/2011 N3 (SOHO) | UNCERTAIN | 6.7311112314439 | 1 |