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Comet C/2016 C1 was discovered on 12 February 2016 with Pan-STARRS 1 telescope (Haleakala), that is a week before its perihelion passage. This comet was observed until 24 May 2020.

Comet had its closest approach to the Earth on 5 March 2016 (7.572 au), about 2 weeks after its perihelion passage.

The preferred solution given here is based on data spanning over 4.28 yr in a range of heliocentric distances: 8.46 au – 8.46 au (perihelion) – 12.3 au.

This Oort spike comet suffers small planetary perturbations during its passage through the planetary system; however, these perturbations likely lead to escape the comet from the planetary zone on a hyperbolic orbit (see future barycentric orbits).
solution description
number of observations 234
data interval 2016 02 12 – 2018 05 06
data type significantly more measurements after perihelion (POST+)
data arc selection entire data set (STD)
range of heliocentric distances 8.46 au – 8.46 au (perihelion) – 9.69 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 464
RMS [arcseconds] 0.56
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 2325 07 12
perihelion date 2016 02 17.81668880 ± 0.00318790
perihelion distance [au] 8.45578259 ± 0.00001508
eccentricity 1.00117682 ± 0.00000961
argument of perihelion [°] 328.637983 ± 0.000181
ascending node [°] 181.740809 ± 0.000007
inclination [°] 56.201411 ± 0.00002
reciprocal semi-major axis [10-6 au-1] -139.17 ± 1.14
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 future swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.