C/2020 H6 ATLAS
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Comet C/2020 H6 was discovered on 22 April 2020, about 1.3 yr before its perihelion passage. In the moment of orbit determination, this comet was still observed.
Solutions (GR and NG) given here are based on data span over 3.16 yr in a range of heliocentric distances: 6.22 au – 4.70 au (perihelion) – 6.71 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 significantly more tight future orbit (semimajor axis of about 2,000 au).
Solutions (GR and NG) given here are based on data span over 3.16 yr in a range of heliocentric distances: 6.22 au – 4.70 au (perihelion) – 6.71 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 significantly more tight future orbit (semimajor axis of about 2,000 au).
| solution description | ||
|---|---|---|
| number of observations | 792 | |
| data interval | 2020 04 22 – 2021 08 23 | |
| data arc selection | data generally limited to pre-perihelion (PRE) | |
| range of heliocentric distances | 6.22 au – 4.71au | |
| type of model of motion | NC - non-gravitational orbits for symmetric CO-g(r)-like function | |
| data weighting | YES | |
| number of residuals | 1561 | |
| RMS [arcseconds] | 0.32 | |
| orbit quality class | 1a | |
| previous orbit statistics, both Galactic and stellar perturbations were taken into account | ||
|---|---|---|
| no. of returning VCs in the swarm | 0 | |
| no. of escaping VCs in the swarm | 5002 | |
| no. of hyperbolas among escaping VCs in the swarm | 4553 | * |
| previous reciprocal semi-major axis [10-6 au-1] | -12.78 – -6.34 – -0.25 | |
| previous perihelion distance [au] | 24 – 27 – 31 | |
| previous aphelion distance [103 au] | 390 – 1200 – 7900 | |
| time interval to previous perihelion [Myr] | 2.36 ± 11.422 | |
| percentage of VCs with qprev > 20 | 100 | |
| previous orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| no. of returning VCs in the swarm | 0 | |
| no. of escaping VCs in the swarm | 5002 | |
| no. of hyperbolas among escaping VCs in the swarm | 4553 | * |
| previous reciprocal semi-major axis [10-6 au-1] | -12.77 – -6.34 – -0.25 | |
| previous perihelion distance [au] | 21 – 24 – 27 | |
| previous aphelion distance [103 au] | 390 – 1200 – 7900 | |
| time interval to previous perihelion [Myr] | 2.35 ± 11.422 | |
| percentage of VCs with 10 < qprev < 20 | 5 | |
| percentage of VCs with qprev > 20 | 95 | |