C/2006 K1 McNaught
more info
C/2006 K1 was discovered on 17 May 2006 by Robert H. McNaught on the Siding Spring Survey images taken with the 0.5-m Uppsala Schmidt telescope [IAUC 8712, 2006 May 18].
This comet made its closest approach to the Earth on 30 October 2007 (3.761 au), 3.3 months after perihelion.
Solution given here is based on data spanning over 2.8 yr (3 oppositions) in a range of heliocentric distances: 5.60 au – 4.426 au (perihelion) – 6.41 au.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to escape of the comet from the solar system on hiperbolic orbit (see future barycentric orbit).
See also Królikowska 2014 and Królikowska and Dybczyński 2017.

solution description
number of observations 417
data interval 2006 05 17 – 2009 02 28
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 5.6 au – 4.43 au (perihelion) – 6.41 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 829
RMS [arcseconds] 0.47
orbit quality class 1a+
orbital elements (barycentric ecliptic J2000)
Epoch 2307 09 05
perihelion date 2007 07 20.59402900 ± 0.00033900
perihelion distance [au] 4.42802761 ± 0.00000227
eccentricity 1.00156044 ± 0.00000410
argument of perihelion [°] 296.450187 ± 0.000042
ascending node [°] 72.134583 ± 0.000010
inclination [°] 53.846964 ± 0.000009
recip semi-major axis [10-6 au-1] -352.40 ± 0.93
file containing 5001 VCs swarm
2006k1a2.bpl
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.