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 | |
| orbital elements (barycentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2329 04 02 | |
| perihelion date | 2020 06 15.70667283 | ± 0.00109001 |
| perihelion distance [au] | 4.46871943 | ± 0.00000663 |
| eccentricity | 0.99828542 | ± 0.00000411 |
| argument of perihelion [°] | 27.198183 | ± 0.000123 |
| ascending node [°] | 307.986247 | ± 0.000030 |
| inclination [°] | 103.568721 | ± 0.000006 |
| reciprocal semi-major axis [10-6 au-1] | 383.69 | ± 0.92 |
| file containing 5001 VCs swarm |
|---|
| 2019k7rc.bpl |
Six 2D-projections of the 6D space of future swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.