C/2019 M3 ATLAS
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Comet C/2019 M3 was discovered on 30 June 2019, about five months after its perihelion passage and was observed only to 25 October 2018.

Thus, the solution given here is based on post-perihelion data and span over 0.159 yr in a range of heliocentric distances from 3.09 au – to 3.93 au.

This comet seems to be Oort spike comet with a more tight future orbit than original orbit (see future barycentric orbit).
solution description
number of observations 341
data interval 2019 06 30 – 2019 10 25
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 3.09 au – 3.93au
detectability of NG effects in the comet's motion NG effects not determinable
type of model of motion GR - gravitational orbit
data weighting YES
number of residuals 7225
RMS [arcseconds] 0.32
orbit quality class 2a
orbital elements (heliocentric ecliptic J2000)
Epoch 2018 12 28
perihelion date 2019 01 03.04481925 ± 0.00177201
perihelion distance [au] 2.41764982 ± 0.00003338
eccentricity 1.00229573 ± 0.00001593
argument of perihelion [°] 87.928123 ± 0.001059
ascending node [°] 154.894193 ± 0.000185
inclination [°] 99.436921 ± 0.000408
reciprocal semi-major axis [10-6 au-1] -949.57 ± 6.58