C/2014 N3 NEOWISE
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Comet C/2014 N3 was discovered on 4 July 2014 with Near-Earth Object Wide-field Infrared Survey Explorer, that is more than 8 months before its perihelion passage. This comet was observed until 6 January 2017.
Comet had its closest approach to the Earth on 9 October 2014 (3.30 au), five months before perihelion passage.
Solutions given here are based on data spanning over 2.51 yr in a range of heliocentric distances: 4.45 au – 3.882 au (perihelion) – 6.70 au.
This Oort spike comet suffers moderate 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 1610
data interval 2014 07 04 – 2017 01 06
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 4.45 au – 3.88 au (perihelion) – 6.7 au
type of model of motion NC - non-gravitational orbits for symmetric CO-g(r)-like function
data weighting YES
number of residuals 3164
RMS [arcseconds] 0.38
orbit quality class 1a+
orbital elements (barycentric ecliptic J2000)
Epoch 1711 07 31
perihelion date 2015 03 12.78956030 ± 0.00092546
perihelion distance [au] 3.88613187 ± 0.00000791
eccentricity 0.99986002 ± 0.00000703
argument of perihelion [°] 353.513256 ± 0.000189
ascending node [°] 19.916755 ± 0.000067
inclination [°] 61.608521 ± 0.000037
recip semi-major axis [10-6 au-1] 36.02 ± 1.81
file containing 5001 VCs swarm
2014n3c4.bmi
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.