C/2018 V1 Machholz-Fujikawa-Iwamoto
more info
Comet C/2018 V1 was discovered on 7 November 2019, about one months before its perihelion passage, and was last seen on 15 December 2018.

Solutions (GR and NG) given here span over 0.101 yr in a range of heliocentric distances: 0.75 au – 0.39 au (perihelion) – 0.50 au;due to short data arc the orbital parameters are uncertain (orbit of 2b quality class).

This comet suffers notable planetary perturbations during its passage through the planetary system; in both cases (GR and NG model of motion) these perturbations lead to escape the comet from the planetary zone on a hyperbolic orbit (see future barycentric orbits).However, the original orbits in both solutions differ and the interstellar origin of this comet cannot be ruled out.
solution description
number of observations 766
data interval 2018 11 08 – 2018 12 15
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 0.75 au – 0.39 au (perihelion) – 0.5 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 1518
RMS [arcseconds] 0.56
orbit quality class 2b
orbital elements (barycentric ecliptic J2000)
Epoch 1726 09 10
perihelion date 2018 12 03.48151735 ± 0.00003228
perihelion distance [au] 0.38989319 ± 0.00000093
eccentricity 1.00017532 ± 0.00001413
argument of perihelion [°] 88.349982 ± 0.000105
ascending node [°] 128.263027 ± 0.000300
inclination [°] 144.076718 ± 0.000241
reciprocal semi-major axis [10-6 au-1] -449.66 ± 36.25
file containing 5001 VCs swarm
2018v1a5.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.