C/2020 H6 ATLAS
more info
Comet C/2020 H6 was discovered on 22 April 2020, about 1.3 yr before its perihelion passage. In the moment of orbit determination, this comet was still observed.

Solutions (GR and NG) given here are based on data span over 3.16 yr in a range of heliocentric distances: 6.22 au – 4.70 au (perihelion) – 6.71 au.Orbits based on pre-perihelion and post-perihelion data independently were also obtained.

This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to a significantly more tight future orbit (semimajor axis of about 2,000 au).
solution description
number of observations 2058
data interval 2020 04 22 – 2023 06 19
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 6.22 au – 4.70 au (perihelion) – 6.71 au
detectability of NG effects in the comet's motion comet with determinable NG~orbit
type of model of motion GR - gravitational orbit
data weighting YES
number of residuals 4070
RMS [arcseconds] 0.40
orbit quality class 1a+
orbital elements (barycentric ecliptic J2000)
Epoch 2332 03 17
perihelion date 2021 09 30.73031164 ± 0.00012794
perihelion distance [au] 4.70468719 ± 0.00000066
eccentricity 0.99772772 ± 0.00000118
argument of perihelion [°] 20.259226 ± 0.000015
ascending node [°] 213.638159 ± 0.000003
inclination [°] 80.004981 ± 0.000004
reciprocal semi-major axis [10-6 au-1] 482.98 ± 0.25
file containing 5001 VCs swarm
2020h6ba.bpl
Six 2D-projections of the 6D space of future swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.