C/2020 K2 PanSTARRS
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Comet C/2020 K2 was discovered on 21 May 2020, about 2.5 months before its perihelion passage and was observed to 28 June 2021.
Solutions given here are based on data span over 1.10 yr in a range of heliocentric distances: 8.89 au – 8.88 au (perihelion) – 9.08 au.
This comet entered the planetary zone having original semimajor axis of about 8,000 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 5,000 au).
Solutions given here are based on data span over 1.10 yr in a range of heliocentric distances: 8.89 au – 8.88 au (perihelion) – 9.08 au.
This comet entered the planetary zone having original semimajor axis of about 8,000 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 5,000 au).
| solution description | ||
|---|---|---|
| number of observations | 87 | |
| data interval | 2020 05 21 – 2021 06 28 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 8.89 au – 8.88 au (perihelion) – 9.08 au | |
| detectability of NG effects in the comet's motion | NG effects not determinable | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | NO | |
| number of residuals | 166 | |
| RMS [arcseconds] | 0.35 | |
| orbit quality class | 1a | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2020 08 19 | |
| perihelion date | 2020 08 04.77652117 | ± 0.03747310 |
| perihelion distance [au] | 8.87821248 | ± 0.00002935 |
| eccentricity | 1.00138854 | ± 0.00003081 |
| argument of perihelion [°] | 67.275836 | ± 0.001962 |
| ascending node [°] | 288.339303 | ± 0.000103 |
| inclination [°] | 91.036126 | ± 0.000042 |
| reciprocal semi-major axis [10-6 au-1] | -156.40 | ± 3.47 |