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 22 August 2016.
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.
Solution given here is based on data spanning over 0.27 yr in a range of heliocentric distances from 5.46 au to 5.56 au.
This comet suffers insignificant planetary perturbations during its passage through the planetary system; have orignal semimajor axis shorter than 5,000 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 YES
number of residuals 144
RMS [arcseconds] 0.47
orbit quality class 2a
orbital elements (heliocentric ecliptic J2000)
Epoch 2016 02 22
perihelion date 2016 02 01.44018097 ± 0.03769277
perihelion distance [au] 5.40087184 ± 0.00008770
eccentricity 0.99929533 ± 0.00016494
argument of perihelion [°] 63.110963 ± 0.004463
ascending node [°] 317.560667 ± 0.000944
inclination [°] 104.629923 ± 0.00011
recip semi-major axis [10-6 au-1] 130.47 ± 30.54
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