C/2005 G1 LINEAR
more info
C/2005 G1 was discovered on 1 April 2005 by the LINEAR as an apparently asteroidal object. Its cometary apperance was reported three days later by C. Hergenrother using 1.54-m Kuiper reflector at Catalina. Prediscovery LINEAR detections from 22 March 2005 were also found [IAUC 8504, 2005 April 4].
This comet made its closest approach to the Earth on 3 March 2006 (4.549 au), four days after its perihelion passage.
Solution given here is based on data spanning over 2.0 yr in a range of heliocentric distances: 5.61 au – 4.961 au (perihelion) – 5.73 au.
This Oort spike comet suffers slight planetary perturbations during its passage through the planetary system.
See also Królikowska 2014 and Królikowska and Dybczyński 2017.

solution description
number of observations 292
data interval 2005 03 22 – 2007 03 11
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 5.61 au – 4.96 au (perihelion) – 5.73 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 573
RMS [arcseconds] 0.49
orbit quality class 1a
orbital elements (heliocentric ecliptic J2000)
Epoch 2006 03 06
perihelion date 2006 02 27.38377100 ± 0.00099400
perihelion distance [au] 4.96067147 ± 0.00000433
eccentricity 0.99979762 ± 0.00000508
argument of perihelion [°] 113.825055 ± 0.000120
ascending node [°] 299.586688 ± 0.000029
inclination [°] 108.414423 ± 0.00001
recip semi-major axis [10-6 au-1] 40.80 ± 1.02
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