C/2001 G1 LONEOS
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C/2001 G1 was discovered on 1 April 2001 by the LONEOS as an apparently asteroidal object. At once, its cometary apperance was reported [IAUC 7606, 2001 April 2]. Later, pre-discovery detections by Air Force Maui Optical and Supercomputing observatory (AMOS) from 28 and 29 December 2000 were found.
This comet made its closest approach to the Earth on 8 April 2002 (7.309 au), six months after perihelion.
Solution given here is based on data spanning over 2.4 yr in a range of heliocentric distances: 8.41 au – 8.235 au (perihelion) – 8.98 au.
This Oort spike comet suffers small 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.
This comet made its closest approach to the Earth on 8 April 2002 (7.309 au), six months after perihelion.
Solution given here is based on data spanning over 2.4 yr in a range of heliocentric distances: 8.41 au – 8.235 au (perihelion) – 8.98 au.
This Oort spike comet suffers small 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 | 138 | |
| data interval | 2000 12 28 – 2003 06 01 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 8.41 au – 8.23 au (perihelion) – 8.98 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 | 266 | |
| RMS [arcseconds] | 0.58 | |
| orbit quality class | 1a | |
| orbital elements (barycentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 1690 08 29 | |
| perihelion date | 2001 10 10.85089500 | ± 0.00819000 |
| perihelion distance [au] | 8.23895535 | ± 0.00003115 |
| eccentricity | 0.99966545 | ± 0.00002270 |
| argument of perihelion [°] | 343.332494 | ± 0.000464 |
| ascending node [°] | 203.944602 | ± 0.000024 |
| inclination [°] | 45.35794 | ± 0.000043 |
| reciprocal semi-major axis [10-6 au-1] | 40.61 | ± 2.76 |
| file containing 5001 VCs swarm |
|---|
| 2001g1a2.bmi |
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 original swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.