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 502
data interval 2019 05 14 – 2020 12 12
data arc selection data generally limited to pre-perihelion (PRE)
range of heliocentric distances 9.61 au – 8.83au
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 999
RMS [arcseconds] 0.28
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 1709 01 22
perihelion date 2021 03 05.20855793 ± 0.00731132
perihelion distance [au] 8.81129648 ± 0.00001108
eccentricity 0.99962609 ± 0.00000545
argument of perihelion [°] 60.021610 ± 0.000405
ascending node [°] 300.413281 ± 0.000017
inclination [°] 89.838096 ± 0.000018
reciprocal semi-major axis [10-6 au-1] 42.43 ± 0.62
file containing 5001 VCs swarm
2019o3pa.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.