C/2020 H11 PanSTARRS-Lemmon
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Comet C/2020 H11 was discovered on 21 April 2020, about 5 months before its perihelion passage. Later a series of pre-discovery observations were found going ten months back to 2 June 2019. This comet was observed to 8 May 2021.
Solutions given here are based on data span over 1.93 yr in a range of heliocentric distances: 8.17 au – 7.63 au (perihelion) – 7.77 au.
This comet entered the planetary zone having original semimajor axis of about 4,500 au and suffers small planetary perturbations during its passage through the planetary system that lead to a bit tight future orbit (semimajor axis of about 3,100 au).
Solutions given here are based on data span over 1.93 yr in a range of heliocentric distances: 8.17 au – 7.63 au (perihelion) – 7.77 au.
This comet entered the planetary zone having original semimajor axis of about 4,500 au and suffers small planetary perturbations during its passage through the planetary system that lead to a bit tight future orbit (semimajor axis of about 3,100 au).
| solution description | ||
|---|---|---|
| number of observations | 53 | |
| data interval | 2019 06 02 – 2021 05 08 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 8.17 au – 7.63 au (perihelion) – 7.77 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 | 106 | |
| RMS [arcseconds] | 0.22 | |
| orbit quality class | 1a | |
| next 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 | |
| next reciprocal semi-major axis [10-6 au-1] | 323.04 – 325.78 – 328.63 | |
| next perihelion distance [au] | 7.64013 – 7.64022 – 7.6403 | |
| next aphelion distance [103 au] | 6.078 – 6.131 – 6.184 | |
| time interval to next perihelion [Myr] | 0.167 – 0.17 – 0.172 | |
| percentage of VCs with qnext < 10 | 100 | |
| next 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 | |
| next reciprocal semi-major axis [10-6 au-1] | 323.05 – 325.79 – 328.64 | |
| next perihelion distance [au] | 7.62716 – 7.62733 – 7.6275 | |
| next aphelion distance [103 au] | 6.078 – 6.131 – 6.183 | |
| time interval to next perihelion [Myr] | 0.167 – 0.17 – 0.172 | |
| percentage of VCs with qnext < 10 | 100 | |