C/2005 EL173 LONEOS
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C/2005 EL173 was discovered on 8 March 2005 by the LONEOS as an apparently asteroidal object in a retrograde orbit and semimajor axis of 36 au [MPEC 2005-F48, 2005 March 29]. Therefore it was initially classified as cubewano or scattered disc object in MPC. Its cometary apperance was reported by A. Fitzsimmons on 10 May 2005. C/2005 EL173 was observed until mid-November 2008.
This comet made its closest approach to the Earth on 4 January 2007 (3.310 au), two months before perihelion passage.
Solutions given here are based on data spanning over 3.7 yr in a range of heliocentric distances: 7.12 au – 3.886 au (perihelion) – 6.45 au.
NG orbit using full data-arc is determinable.
This Oort spike comet suffers rather slight planetary perturbations during its passage through the planetary system; however, these perturbations leas to escape this comet from the planetary zone on a hyperbolic orbit.
See also Królikowska and Dones 2023, Królikowska and Dybczyński 2017,and Królikowska 2014.
This comet made its closest approach to the Earth on 4 January 2007 (3.310 au), two months before perihelion passage.
Solutions given here are based on data spanning over 3.7 yr in a range of heliocentric distances: 7.12 au – 3.886 au (perihelion) – 6.45 au.
NG orbit using full data-arc is determinable.
This Oort spike comet suffers rather slight planetary perturbations during its passage through the planetary system; however, these perturbations leas to escape this comet from the planetary zone on a hyperbolic orbit.
See also Królikowska and Dones 2023, Królikowska and Dybczyński 2017,and Królikowska 2014.
solution description | ||
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number of observations | 317 | |
data interval | 2005 03 03 – 2008 11 17 | |
data type | perihelion within the observation arc (FULL) | |
data arc selection | entire data set (STD) | |
range of heliocentric distances | 7.12 au – 3.89 au (perihelion) – 6.45 au | |
detectability of NG effects in the comet's motion | comet with determinable NG~orbit | |
type of model of motion | GR - gravitational orbit | |
data weighting | YES | |
number of residuals | 631 | |
RMS [arcseconds] | 0.47 | |
orbit quality class | 1a+ |
orbital elements (barycentric ecliptic J2000) | ||
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Epoch | 2309 12 23 | |
perihelion date | 2007 03 05.95388527 | ± 0.00020138 |
perihelion distance [au] | 3.88770558 | ± 0.00000094 |
eccentricity | 1.00013720 | ± 0.00000184 |
argument of perihelion [°] | 261.462222 | ± 0.000028 |
ascending node [°] | 344.826896 | ± 0.000009 |
inclination [°] | 130.732194 | ± 0.00001 |
reciprocal semi-major axis [10-6 au-1] | -35.29 | ± 0.47 |
file containing 5001 VCs swarm |
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2005el_w.bpl |