C/2008 S3 Boattini
more info
Comet C/2008 S3 was discovered on 29 September 2008 by Andrea Boattini during Mt Lemmon Survey, that is almost 3 yr before perihelion passage. Pre-discovery observations taken with Mt Lemmon Survey (on 18 December 2007 and 27 December 2006) and Catalina Sky Survey (on 4 December 2007) were next found. Thus, this comet was observed 8.6 yr during ten oppositions in a range of heliocentric distances: 12.4 au – 8.015 au (perihelion) – 11.7 au.
Comet had its closest approach to the Earth on 30 September 2011 (7.075 au, almost four months after perihelion).
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system.
See also Królikowska and Dybczyński 2017.

solution description
number of observations 1953
data interval 2006 12 27 – 2015 07 17
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 12.4 au – 8.02 au (perihelion) – 11.7 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 3888
RMS [arcseconds] 0.42
orbit quality class 1a+
orbital elements (heliocentric ecliptic J2000)
Epoch 2006 06 27
perihelion date 2011 06 03.77078156 ± 0.00041465
perihelion distance [au] 8.01530277 ± 0.00000267
eccentricity 1.00360318 ± 0.00000250
argument of perihelion [°] 39.796141 ± 0.000025
ascending node [°] 54.922655 ± 0.000012
inclination [°] 162.717969 ± 0.000005
recip semi-major axis [10-6 au-1] -449.54 ± 0.31
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