C/2003 T3 Tabur
more info
Comet C/2003 T3 was discovered on 14 October 2003 by Vello Tabur (Australian Capital Territory); that is 6.5 months before its perihelion passage. It was observed until 3 May 2005.
Comet had its closest approach to the Earth on 22 May 2004 (2.319 au), about 3 weeks after its perihelion passage.
Preferred solution given here is based on data spanning over 1.55 yr in a range of heliocentric distances: 2.968 au – 1.481 au (perihelion) – 4.63 au, however NG solution based on pre-perihelion data (pn) is also adequate for past calculations.
This Oort spike comet suffers large planetary perturbations during its passage through the planetary system; these perturbations lead to a significantly more tight future orbit with semimajor axis of about 1,400 au.
See also Królikowska 2020.

solution description
number of observations 769
data interval 2003 10 14 – 2005 05 03
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 2.96 au – 1.48 au (perihelion) – 4.63 au
type of model of motion NS - non-gravitational orbits for standard g(r)
data weighting YES
number of residuals 1522
RMS [arcseconds] 0.57
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 2311 12 13
perihelion date 2004 04 29.23849372 ± 0.00013014
perihelion distance [au] 1.47662354 ± 0.00000186
eccentricity 0.99893121 ± 0.00000296
argument of perihelion [°] 43.672695 ± 0.000095
ascending node [°] 347.024538 ± 0.000024
inclination [°] 50.488966 ± 0.000017
reciprocal semi-major axis [10-6 au-1] 723.80 ± 2.01
file containing 5001 VCs swarm
2003t3n4.bpl
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.
Six 2D-projections of the 6D space of future swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.