C/2009 F4 McNaught
more info
Comet C/2009 F4 was discovered on 19 March 2009, that is 2.8 yr before perihelion passage, and next was observed 6.4 yr during seven oppositions in a range of heliocentric distances: 8.96 au – 5.455 au (perihelion) – 10.5 au.
Comet had its closest approach to the Earth on 3 June 2011 (5.179 au, almost seven months before perihelion).
NG orbits using full data-arc as well as using pre-perihelion data arc are determinable.
This Oort spike comet suffers a tiny planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
See also Królikowska and Dones 2023 and Królikowska and Dybczyński 2017.
Comet had its closest approach to the Earth on 3 June 2011 (5.179 au, almost seven months before perihelion).
NG orbits using full data-arc as well as using pre-perihelion data arc are determinable.
This Oort spike comet suffers a tiny planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
See also Królikowska and Dones 2023 and Królikowska and Dybczyński 2017.
solution description | ||
---|---|---|
number of observations | 1204 | |
data interval | 2009 03 19 – 2015 08 20 | |
data type | perihelion within the observation arc (FULL) | |
data arc selection | entire data set (STD) | |
range of heliocentric distances | 8.96 au – 5.46 au (perihelion) – 10.5 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 | 2383 | |
RMS [arcseconds] | 0.51 | |
orbit quality class | 1a+ |
previous orbit statistics, both Galactic and stellar perturbations were taken into account | ||
---|---|---|
no. of returning VCs in the swarm | 5001 | * |
no. of escaping VCs in the swarm | 0 | |
no. of hyperbolas among escaping VCs in the swarm | 0 | |
previous reciprocal semi-major axis [10-6 au-1] | 42.07 – 42.50 – 42.92 | |
previous perihelion distance [au] | 247 – 252 – 258 | |
previous aphelion distance [103 au] | 46.35 – 46.8 – 47.28 | |
time interval to previous perihelion [Myr] | 3.78 – 3.83 – 3.88 | |
percentage of VCs with qprev > 20 | 100 |
previous orbit statistics, here only the Galactic tide has been included | ||
---|---|---|
no. of returning VCs in the swarm | 5001 | * |
no. of escaping VCs in the swarm | 0 | |
no. of hyperbolas among escaping VCs in the swarm | 0 | |
previous reciprocal semi-major axis [10-6 au-1] | 41.08 – 41.41 – 41.73 | |
previous perihelion distance [au] | 12.8 – 13.1 – 13.4 | |
previous aphelion distance [103 au] | 47.91 – 48.29 – 48.67 | |
time interval to previous perihelion [Myr] | 3.68 – 3.73 – 3.77 | |
percentage of VCs with 10 < qprev < 20 | 100 |