C/2019 L3 ATLAS
more info
Comet C/2019 L3 was discovered on 10 June 2019, about 2.5 yr before its perihelion passage. In the moment of orbit determination, this comet was still observed.

Currently, solutions (GR and NG) given here are based on pre-perihelion data and span over 2.58 yr in a range of heliocentric distances from 8.46 au to 3.56 au.

This is Oort spike comet.
solution description
number of observations 631
data interval 2019 06 10 – 2022 01 09
data arc selection data generally limited to pre-perihelion (PRE)
range of heliocentric distances 8.46 au – 3.56 au (perihelion) – 3.55 au
type of model of motion NC - non-gravitational orbits for symmetric CO-g(r)-like function
data weighting YES
number of residuals 7225
RMS [arcseconds] 0.27
orbit quality class 1a+
orbital elements (barycentric ecliptic J2000)
Epoch 1719 01 10
perihelion date 2022 01 09.45390420 ± 0.00033484
perihelion distance [au] 3.55496547 ± 0.00000281
eccentricity 0.99990564 ± 0.00000137
argument of perihelion [°] 171.642053 ± 0.000060
ascending node [°] 290.881758 ± 0.000014
inclination [°] 48.396097 ± 0.000002
reciprocal semi-major axis [10-6 au-1] 26.54 ± 0.39
file containing 5001 VCs swarm
2019l3pc.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.