C/2016 KA Catalina
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Comet C/2016 KA was discovered on 16 May 2016 with Catalina Sky Survey, that is about 3.5 months after its perihelion passage. This comet was observed about three months until 3 April 2017.

Comet had its closest approach to the Earth on 2 June 2016 (5.240 au), about 4 months after its perihelion passage and about 2 weeks after its discovery.

The preferred solution given here is based on data spanning over 0.88 yr in a range of heliocentric distances from 5.46 au to 6.24 au.

This comet suffers insignificant planetary perturbations during its passage through the planetary system; have orignal and future semimajor axes shorter than 5000 au.
solution description
number of observations 75
data interval 2016 05 16 – 2016 08 22
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 5.46 au – 5.56au
detectability of NG effects in the comet's motion NG effects not determinable
type of model of motion GR - gravitational orbit
data weighting NO
number of residuals 144
RMS [arcseconds] 0.47
orbit quality class 2a
orbital elements (barycentric ecliptic J2000)
Epoch 1707 08 21
perihelion date 2016 02 01.42239453 ± 0.03768610
perihelion distance [au] 5.39825632 ± 0.00008794
eccentricity 0.99882887 ± 0.00016661
argument of perihelion [°] 63.191136 ± 0.004477
ascending node [°] 317.551600 ± 0.000944
inclination [°] 104.589943 ± 0.00011
reciprocal semi-major axis [10-6 au-1] 216.95 ± 30.86
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.