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).
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 (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2015 02 27 | |
| perihelion date | 2015 03 13.23557694 | ± 0.00047969 |
| perihelion distance [au] | 3.88225513 | ± 0.00000101 |
| eccentricity | 0.99945324 | ± 0.00000189 |
| argument of perihelion [°] | 353.571626 | ± 0.000084 |
| ascending node [°] | 19.926831 | ± 0.000008 |
| inclination [°] | 61.634908 | ± 0.000008 |
| reciprocal semi-major axis [10-6 au-1] | 140.84 | ± 0.49 |
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.
| non-gravitational parameters | ||
|---|---|---|
| A1 [10-8au/day2] | 1.092 | ± 0.0741 |
| A2 [10-8au/day2] | 0.22044 | ± 0.08212 |
| A3 [10-8au/day2] | -0.1916 | ± 0.0456 |
| m | -2.00 | |
| n | 3.000 | |
| k | -2.6000 | |
| r0 [au] | 10.000 | |
| α | 0.0100 | |