C/2020 W5 Lemmon
more info
Comet C/2020 W5 was discovered on 20 November 2020, about 10 days before its perihelion passage and was observed to 8 January 2021.

Solution given here is based on data span over 0.134 yr in a very narrow range of heliocentric distances: 3.37 au – 3.36 au (perihelion) – 3.38 au. Due to short data arc uncertainties of orbital elements are relatively large (orbit of 2b quality class).

This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to escape the comet from the solar system on hyperbolic barycentric orbit
solution description
number of observations 55
data interval 2020 11 20 – 2021 01 08
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 3.37 au – 3.36 au (perihelion) – 3.38 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] 0.39
orbit quality class 2b
orbital elements (barycentric ecliptic J2000)
Epoch 1718 08 03
perihelion date 2020 11 30.19023179 ± 0.02471558
perihelion distance [au] 3.36690410 ± 0.00013049
eccentricity 0.99999838 ± 0.00030430
argument of perihelion [°] 24.555267 ± 0.005382
ascending node [°] 75.596846 ± 0.001747
inclination [°] 88.579154 ± 0.003565
reciprocal semi-major axis [10-6 au-1] 0.48 ± 90.38
file containing 5001 VCs swarm
2020w5a1.bmi
Six 2D-projections of the 6D space of original swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.