C/2013 L2 Catalina
more info
Comet C/2013 L2 was discovered on 2 June 2013 with the Catalina Sky Survey, that is more than one year after perihelion passage, and next observed 121 days (0.33 yr) in a range of heliocentric distances from 5.71 au to 6.22 au.
Comet had its closest approach to the Earth on 2 July 2012 (3.888 au), less than two months after perihelion.
C/2013 L2 suffered small planetary perturbations during its passage through the planetary system.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system; these perturbations lead to a more tight future orbit (see future barycentric orbits).
See also Królikowska and Dybczyński 2017.

solution description
number of observations 242
data interval 2013 06 02 – 2013 10 01
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 5.71 au – 6.22au
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 471
RMS [arcseconds] 0.32
orbit quality class 2a
next orbit statistics, both Galactic and stellar perturbations were taken into account
no. of returning VCs in the swarm 5001 *
no. of escaping VCs in the swarm 0
no. of hyperbolas among escaping VCs in the swarm 0
next reciprocal semi-major axis [10-6 au-1] 198.61 – 223.31 – 247.19
next perihelion distance [au] 4.8785 – 4.8799 – 4.8823
next aphelion distance [103 au] 8.09 – 8.95 – 10.1
time interval to next perihelion [Myr] 0.26 – 0.3 – 0.36
percentage of VCs with qnext < 10100
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.
next orbit statistics, here only the Galactic tide has been included
no. of returning VCs in the swarm 5001 *
no. of escaping VCs in the swarm 0
no. of hyperbolas among escaping VCs in the swarm 0
next reciprocal semi-major axis [10-6 au-1] 198.59 – 223.29 – 247.18
next perihelion distance [au] 4.8775 – 4.879 – 4.8815
next aphelion distance [103 au] 8.09 – 8.95 – 10.1
time interval to next perihelion [Myr] 0.26 – 0.3 – 0.36
percentage of VCs with qnext < 10100