C/2019 G4 PanSTARRS
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Comet C/2019 G4 was discovered on 9 April 2019, about 7 months after its perihelion passage. Later a two pre-discovery observations were found from 24 July 2018, these two measurements are the only data taken before perihelion passage.
Solution given here span over 2.30 yr in a range of heliocentric distances: 5.87 au – 5.86 au (perihelion) – 7.99 au.
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 orbit).
Solution given here span over 2.30 yr in a range of heliocentric distances: 5.87 au – 5.86 au (perihelion) – 7.99 au.
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 orbit).
| solution description | ||
|---|---|---|
| number of observations | 38 | |
| data interval | 2018 07 24 – 2020 11 11 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 5.87 au – 5.86 au (perihelion) – 7.99 au | |
| detectability of NG effects in the comet's motion | NG effects not determinable | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 75 | |
| RMS [arcseconds] | 0.26 | |
| 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] | 90.48 – 93.02 – 95.66 | |
| previous perihelion distance [au] | 6.086 – 6.134 – 6.208 | |
| previous aphelion distance [103 au] | 20.9 – 21.5 – 22.1 | |
| time interval to previous perihelion [Myr] | 1.07 – 1.11 – 1.16 | |
| percentage of VCs with qprev < 10 | 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] | 90.48 – 93.02 – 95.66 | |
| previous perihelion distance [au] | 6.055 – 6.076 – 6.099 | |
| previous aphelion distance [103 au] | 20.9 – 21.5 – 22.1 | |
| time interval to previous perihelion [Myr] | 1.07 – 1.11 – 1.16 | |
| percentage of VCs with qprev < 10 | 100 | |