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 792
data interval 2020 04 22 – 2021 08 23
data arc selection data generally limited to pre-perihelion (PRE)
range of heliocentric distances 6.22 au – 4.71au
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 1561
RMS [arcseconds] 0.32
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 1716 12 11
perihelion date 2021 09 30.36455154 ± 0.00046420
perihelion distance [au] 4.70579452 ± 0.00000296
eccentricity 0.99992549 ± 0.00000297
argument of perihelion [°] 20.299471 ± 0.000071
ascending node [°] 213.635592 ± 0.000003
inclination [°] 79.934553 ± 0.000011
reciprocal semi-major axis [10-6 au-1] 15.83 ± 0.63
file containing 5001 VCs swarm
2020h6pa.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.