C/2019 O3 Palomar
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Comet C/2019 O3 was discovered on 26 July 2019, more than 1.5 yr before its perihelion passage. Later a series of pre-discovery observations were found going back to 14 May 2019. In the moment of orbit determination, this comet was still observed.
Currently, solutions (GR and NG) given here are based on data span over 4.13 yr in a range of heliocentric distances: 9.61 au – 8.82 au (perihelion) – 10.1 au. Orbits based on pre-perihelion and post-perihelion data independently were also obtained.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbits).
Currently, solutions (GR and NG) given here are based on data span over 4.13 yr in a range of heliocentric distances: 9.61 au – 8.82 au (perihelion) – 10.1 au. Orbits based on pre-perihelion and post-perihelion data independently were also obtained.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbits).
| solution description | ||
|---|---|---|
| number of observations | 502 | |
| data interval | 2019 05 14 – 2020 12 12 | |
| data arc selection | data generally limited to pre-perihelion (PRE) | |
| range of heliocentric distances | 9.61 au – 8.83au | |
| detectability of NG effects in the comet's motion | comet with determinable NG~orbit | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 999 | |
| RMS [arcseconds] | 0.28 | |
| orbit quality class | 1a | |
| previous 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 | |
| previous reciprocal semi-major axis [10-6 au-1] | 39.40 – 40.00 – 40.55 | |
| previous perihelion distance [au] | 631 – 679 – 730 | |
| previous aphelion distance [103 au] | 48.7 – 49.3 – 50 | |
| time interval to previous perihelion [Myr] | 3.48 – 3.57 – 3.67 | |
| 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 | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 41.65 – 42.45 – 43.22 | |
| previous perihelion distance [au] | 12.9 – 13.2 – 13.5 | |
| previous aphelion distance [103 au] | 46.3 – 47.1 – 48 | |
| time interval to previous perihelion [Myr] | 3.51 – 3.6 – 3.71 | |
| percentage of VCs with 10 < qprev < 20 | 100 | |