C/2010 L3 Catalina
more info
Comet C/2010 L3 was discovered on 15 June 2010 in a course of Catalina Sky Survey, and next rarely observed 2.8 yr during four oppositions in a range of heliocentric distances: 9.92 au – 9.883 au (perihelion) – 11.0 au. At the moment of discovery, it was five months before perihelion passage (see figure).
Comet had its closest approach to the Earth on 14 May 2011 (9.293 au, six months after perihelion).
This comet suffers small planetary perturbations during its passage through the planetary system that lead to a less tight future orbit with semimjor axis larger than 10000 au (see future barycentric orbit).
See also Królikowska and Dybczyński 2017.

solution description
number of observations 123
data interval 2010 06 15 – 2013 04 08
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 9.92 au – 9.88 au (perihelion) – 11 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 245
RMS [arcseconds] 0.39
orbit quality class 1a
orbital elements (heliocentric ecliptic J2000)
Epoch 2010 11 20
perihelion date 2010 11 10.47076512 ± 0.00827091
perihelion distance [au] 9.88282514 ± 0.00003420
eccentricity 0.99909456 ± 0.00002132
argument of perihelion [°] 121.774413 ± 0.000361
ascending node [°] 38.276041 ± 0.000041
inclination [°] 102.630673 ± 0.000036
recip semi-major axis [10-6 au-1] 91.62 ± 2.16
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