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 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
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] 72.50 – 73.24 – 73.95
previous perihelion distance [au] 6.692 – 6.713 – 6.735
previous aphelion distance [103 au] 27.04 – 27.3 – 27.58
time interval to previous perihelion [Myr] 1.57 – 1.59 – 1.62
percentage of VCs with qprev < 10100
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] 72.49 – 73.23 – 73.94
previous perihelion distance [au] 6.505 – 6.528 – 6.553
previous aphelion distance [103 au] 27.04 – 27.3 – 27.58
time interval to previous perihelion [Myr] 1.57 – 1.59 – 1.62
percentage of VCs with qprev < 10100