C/2019 O3 Palomar
more info
Comet C/2019 O3 was discovered on 26 July 2019, more than 1.5 yr before its perihelion passage. Later a series of pre-discovery observations were found going back to 14 May 2019. In the moment of orbit determination, this comet was still observed.

Currently, solutions (GR and NG) given here are based on data span over 4.13 yr in a range of heliocentric distances: 9.61 au – 8.82 au (perihelion) – 10.1 au. Orbits based on pre-perihelion and post-perihelion data independently were also obtained.

This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbits).
solution description
number of observations 2115
data interval 2019 05 14 – 2023 06 29
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 9.61 au – 8.82 au (perihelion) – 10.06 au
type of model of motion NC - non-gravitational orbits for symmetric CO-g(r)-like function
data weighting YES
number of residuals 4181
RMS [arcseconds] 0.38
orbit quality class 1a+
orbital elements (barycentric ecliptic J2000)
Epoch 1709 01 22
perihelion date 2021 03 05.30709117 ± 0.00455370
perihelion distance [au] 8.81106930 ± 0.00001689
eccentricity 0.99965509 ± 0.00001146
argument of perihelion [°] 60.027559 ± 0.000286
ascending node [°] 300.413257 ± 0.000021
inclination [°] 89.83814 ± 0.000035
reciprocal semi-major axis [10-6 au-1] 39.14 ± 1.30
file containing 5001 VCs swarm
2019o3bc.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.