C/2006 S3 | CODEC

C/2006 S3 LONEOS

Comet C/2006 S3 was discovered on 19 November 2006 by LONEOS at heliocentric dostance of 14.3 au as an object with cometary apperance and soon a few prediscovery observations taken by Catalina Sky Survey on 17 September 2006 were found [IAUC 8752, 2006 September 21]. Later, more prediscovery observations were reported (taken on 29 August 2006 and 13 October 1999). Comet passed perihelion in mid-April 2012 and since its discovery was observed during many consecutive oppositions (see figure). In August 2023, data arc extends up to 24 January 2020 and are available at MPC.

Solutions given here are based on data covered 26.1 yr in a range of heliocentric distances: 26.1 au – 5.131 au (perihelion) – 19.8 au.

Comet had its closest approach to the Earth on 1 June 2012 (4.141 au, 1.5 months after perihelion).

NG orbits are determinable, however some trends in residuals with time are still visible.

This Oort spike comet suffers slight planetary perturbations during its passage through the planetary system; however, they lead to escape of the comet from the solar system on hiperbolic orbit (see future barycentric orbit).

See also Królikowska and Dones 2023 and Królikowska and Dybczyński 2017.

2006s3a6 2006s3c6 2006s3b5 2006s3b9 2006s3ba 2006s3bc 2006s3p3 2006s3wb

solution description
number of observations	6553
data interval	1999 10 13 – 2018 01 16
data type	perihelion within the observation arc (FULL)
data arc selection	entire data set (STD)
range of heliocentric distances	26.14 au – 5.13 au (perihelion) – 14.64 au
type of model of motion	NC - non-gravitational orbits for symmetric CO-g(r)-like function
data weighting	YES
number of residuals	12944
RMS [arcseconds]	0.54
orbit quality class	1a+

next orbit statistics, both Galactic and stellar perturbations were taken into account
no. of returning VCs in the swarm	0
no. of escaping VCs in the swarm	5001
no. of hyperbolas among escaping VCs in the swarm	5001	*
next reciprocal semi-major axis [10^-6 au^-1]	-58.12 – -57.52 – -56.91
next perihelion distance [au]	151 – 151.7 – 152.4
synchronous stop epoch [Myr]	1.85	S
percentage of VCs with q_next > 20	100

Upper panel: 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.
Middle panel(s): O-C diagram for a given solution (sometimes in comparison to another solution available in CODE), where residuals in right ascension are shown using magenta dots and in declination by blue open circles.
Lowest panel: Relative weights for a given data set(s).

next orbit statistics, here only the Galactic tide has been included
no. of returning VCs in the swarm	0
no. of escaping VCs in the swarm	5001
no. of hyperbolas among escaping VCs in the swarm	5001	*
next reciprocal semi-major axis [10^-6 au^-1]	-56.97 – -56.37 – -55.77
next perihelion distance [au]	3.374 – 3.383 – 3.393
synchronous stop epoch [Myr]	1.88	S
percentage of VCs with q_next < 10	100