C/2019 K7 Smith
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Comet C/2019 K7 was discovered on 30 May 2019, more than one year before its perihelion passage. Later a few pre-discovery observations were found from 8 and 9 October 2017. In the moment of orbit determination, this comet was still observed.
Solutions (GR and NG) given here span over 5.49 yr in a range of heliocentric distances: 8.64 au – 4.48 au (perihelion) – 9.2 au; orbits based on pre-perihelion and post-perihelion data independently were also obtained.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
Solutions (GR and NG) given here span over 5.49 yr in a range of heliocentric distances: 8.64 au – 4.48 au (perihelion) – 9.2 au; orbits based on pre-perihelion and post-perihelion data independently were also obtained.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
| solution description | ||
|---|---|---|
| number of observations | 2114 | |
| data interval | 2020 06 18 – 2023 06 03 | |
| data arc selection | data generally limited to post-perihelion (POS) | |
| range of heliocentric distances | 4.48 au – 9.2au | |
| type of model of motion | NC - non-gravitational orbits for symmetric CO-g(r)-like function | |
| data weighting | YES | |
| number of residuals | 4156 | |
| RMS [arcseconds] | 0.40 | |
| orbit quality class | 1a | |
| next orbit statistics, both Galactic and stellar perturbations were taken into account | ||
|---|---|---|
| no. of returning VCs in the swarm | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| next reciprocal semi-major axis [10-6 au-1] | 382.53 – 383.69 – 384.89 | |
| next perihelion distance [au] | 4.46925 – 4.46926 – 4.46927 | |
| next aphelion distance [103 au] | 5.192 – 5.208 – 5.224 | |
| time interval to next perihelion [Myr] | 0.1321 – 0.1327 – 0.1333 | |
| percentage of VCs with qnext < 10 | 100 | |
| next orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| no. of returning VCs in the swarm | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| next reciprocal semi-major axis [10-6 au-1] | 382.52 – 383.69 – 384.88 | |
| next perihelion distance [au] | 4.46908 – 4.46909 – 4.4691 | |
| next aphelion distance [103 au] | 5.192 – 5.208 – 5.224 | |
| time interval to next perihelion [Myr] | 0.1321 – 0.1327 – 0.1333 | |
| percentage of VCs with qnext < 10 | 100 | |