C/2012 LP26 Palomar
more info
Comet C/2012 LP26 was discovered on 10 June 2012 with Palomar Transient Factory survey, that is about 3.2 years before its perihelion passage. Soon, it was found on earlier images taken on 23 May 2012 with the Mount Lemmon Survey. It was observed until 5 October 2018.
Comet had its closest approach to the Earth on 8 June 2013 (7.511 au), about 2 months before its perihelion passage.
Solution given here is based on data spanning over 5.62 yr in a range of heliocentric distances: 10.02 au – 6.536 au (perihelion) – 8.68 au (5 January 2018).
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system; however, these perturbations lead to escape the comet from the planetary zone on a hyperbolic orbit (see future barycentric orbit).

solution description
number of observations 438
data interval 2012 05 23 – 2018 01 05
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 10.02 au – 6.54 au (perihelion) – 8.68 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 864
RMS [arcseconds] 0.45
orbit quality class 1a+
orbital elements (heliocentric ecliptic J2000)
Epoch 2015 08 06
perihelion date 2015 08 16.60855374 ± 0.00041063
perihelion distance [au] 6.53606263 ± 0.00000238
eccentricity 0.99920682 ± 0.00000312
argument of perihelion [°] 145.155966 ± 0.000033
ascending node [°] 153.987532 ± 0.000018
inclination [°] 25.379716 ± 0.000008
recip semi-major axis [10-6 au-1] 121.35 ± 0.48
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