C/2020 K6 Rankin
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Comet C/2020 K6 was discovered on 26 May 2020, about 1.3 yr before its perihelion passage and was observed to 25 June 2023.
Solution given here is based on data span over 3.08 yr in a range of heliocentric distances: 6.76 au – 5.87 au (perihelion) – 7.40 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that lead to bit tight future orbit.
Solution given here is based on data span over 3.08 yr in a range of heliocentric distances: 6.76 au – 5.87 au (perihelion) – 7.40 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that lead to bit tight future orbit.
| solution description | ||
|---|---|---|
| number of observations | 191 | |
| data interval | 2020 05 26 – 2023 06 25 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 6.76 au – 5.87 au (perihelion) – 7.4 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 | 371 | |
| RMS [arcseconds] | 0.27 | |
| orbit quality class | 1a | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2021 09 23 | |
| perihelion date | 2021 09 15.45651562 | ± 0.00040043 |
| perihelion distance [au] | 5.86833915 | ± 0.00000255 |
| eccentricity | 1.00303658 | ± 0.00000329 |
| argument of perihelion [°] | 44.295924 | ± 0.000036 |
| ascending node [°] | 291.526173 | ± 0.000006 |
| inclination [°] | 103.643339 | ± 0.00001 |
| reciprocal semi-major axis [10-6 au-1] | -517.45 | ± 0.56 |
Upper panel: Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.
Middle panel(s): O-C diagram for a given solution (sometimes in comparison to another solution available in CODE), where residuals in right ascension are shown using magenta dots and in declination by blue open circles.
Lowest panel: Relative weights for a given data set(s).
Middle panel(s): O-C diagram for a given solution (sometimes in comparison to another solution available in CODE), where residuals in right ascension are shown using magenta dots and in declination by blue open circles.
Lowest panel: Relative weights for a given data set(s).