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Comet C/2014 W3 was discovered on 18 November 2014 with Pan-STARRS 1 telescope (Haleakala), that is about 9 months after its perihelion passage. This comet was rarely observed until 3 February 2016.
Comet had its closest approach to the Earth on 10 January 2014 (5.204 au), about 1.5 month before its perihelion passage. At the moment of discovery C/2014 W3 was 1.5 month before the next approach to the Earth (5.466 au).
Solution given here is based on data spanning over 1.21 yr in a range of heliocentric distances: 6.34 au – 6.064 au (perihelion) – 7.76 au.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to escape the comet from the planetary zone on a hyperbolic orbit (see future barycentric orbit).

solution description
number of observations 47
data interval 2014 11 18 – 2016 02 03
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 6.34 au – 7.76au
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 93
RMS [arcseconds] 0.46
orbit quality class 1b
orbital elements (barycentric ecliptic J2000)
Epoch 1706 12 24
perihelion date 2014 02 25.70581583 ± 0.01021280
perihelion distance [au] 6.06081052 ± 0.00006703
eccentricity 0.99991869 ± 0.00006426
argument of perihelion [°] 158.762996 ± 0.001223
ascending node [°] 286.347528 ± 0.000057
inclination [°] 90.210504 ± 0.000135
reciprocal semi-major axis [10-6 au-1] 13.42 ± 10.60
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.