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 | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2021 09 23 | |
| perihelion date | 2021 10 01.05772888 | ± 0.00498804 |
| perihelion distance [au] | 4.70291221 | ± 0.00000793 |
| eccentricity | 1.00069143 | ± 0.00000916 |
| argument of perihelion [°] | 20.345378 | ± 0.000699 |
| ascending node [°] | 213.706493 | ± 0.000004 |
| inclination [°] | 79.967245 | ± 0.000015 |
| reciprocal semi-major axis [10-6 au-1] | -147.02 | ± 1.95 |
| non-gravitational parameters | ||
|---|---|---|
| A1 [10-8au/day2] | 4.1901 | ± 0.8097 |
| A2 [10-8au/day2] | -1.1827 | ± 0.4714 |
| A3 [10-8au/day2] | 0 | (assumed) |
| m | -2.00 | |
| n | 3.000 | |
| k | -2.6000 | |
| r0 [au] | 10.000 | |
| α | 0.0100 | |