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+
next orbit elements (barycentric ecliptic J2000)
no. of returning VCs in the swarm 5001 *
no. of escaping VCs in the swarm 0
no. of hyperbolas among escaping VCs in the swarm 0
next recip semi-major axis [10-6 au-1] 462.38 ± 1.32
next perihelion distance [au] 3.88782 ± 0.00002
next aphelion distance [103 au] 4.32 ± 0.01
time interval to next perihelion [Myr] 0.1003 ± 0.0004
percentage of VCs with q < 10100
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