C/2003 G1 LINEAR
more info
C/2003 G1 was discovered on 8 April 2003 by the LINEAR as an apparently asteroidal object. In the next two days its cometary apperance was reported by many observers [IAUC 8115, 2003 April 10]. At the moment of discovery it was about 2 months after its perihelion passage.
This comet made its closest approach to the Earth on 31 May 2003 (4.103 au), almost four months after perihelion.
Solution given here is based on data spanning over 1.5 yr in a range of heliocentric distances from 4.94 au to 6.77 au.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system that lead to escape of the comet from the solar system on hiperbolic orbit (see future barycentric orbit).
See also Królikowska 2014 and Królikowska and Dybczyński 2017.

solution description
number of observations 1484
data interval 2003 04 08 – 2004 10 14
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 4.94 au – 6.77au
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 2939
RMS [arcseconds] 0.54
orbit quality class 1a
orbital elements (heliocentric ecliptic J2000)
Epoch 2003 02 10
perihelion date 2003 02 03.65208100 ± 0.00063800
perihelion distance [au] 4.91629490 ± 0.00000352
eccentricity 1.00125341 ± 0.00000313
argument of perihelion [°] 11.421359 ± 0.000093
ascending node [°] 246.091987 ± 0.000010
inclination [°] 66.855788 ± 0.000017
reciprocal semi-major axis [10-6 au-1] -254.95 ± 0.63
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.