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Comet C/2014 M1 was discovered on 24 June 2014 with Pan-STARRS 1 telescope (Haleakala), that is more than a year before its perihelion passage. This comet was rather rarely observed during four oppositions until 7 March 2017.
Comet had its closest approach to the Earth on 17 June 2015 (4.603 au), more than two months before perihelion passage.
Solution given here are based on data spanning over 2.70 yr in a range of heliocentric distances: 6.37 au – 5.577 au (perihelion) – 6.86 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system; these perturbations lead to a more tight future orbit (see future barycentric orbits).

solution description
number of observations 86
data interval 2014 06 24 – 2017 03 07
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 6.37 au – 5.58 au (perihelion) – 6.86 au
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 165
RMS [arcseconds] 0.38
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 1708 08 15
perihelion date 2015 08 27.99236736 ± 0.00124545
perihelion distance [au] 5.57438344 ± 0.00000847
eccentricity 0.99959620 ± 0.00001095
argument of perihelion [°] 336.875718 ± 0.000118
ascending node [°] 234.667571 ± 0.000042
inclination [°] 160.180434 ± 0.000019
reciprocal semi-major axis [10-6 au-1] 72.44 ± 1.96
file containing 5001 VCs swarm
Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.
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.