C/2011 F1 LINEAR
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Comet C/2011 F1 was discovered on 17 March 2011 with Lincoln Laboratory Near-Earth Asteroid Research project; that is about a year and 10 months before its perihelion passage. The comet was observed until 7 August 2014.
Comet had its closest approach to the Earth on 6 April 2013 (2.560 au), about 3 months after its perihelion passage.
Solutions given here are based on data spanning over 3.39 yr in a range of heliocentric distances: 6.99 au – 1.819 au (perihelion) – 6.30 au.
This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system; these perturbations lead to a more tight future orbit (see future barycentric orbits).
See also Królikowska 2020.

solution description
number of observations 4654
data interval 2011 03 17 – 2014 08 07
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 6.99 au – 1.82 au (perihelion) – 6.3 au
type of model of motion NS - non-gravitational orbits for standard g(r)
data weighting YES
number of residuals 9196
RMS [arcseconds] 0.42
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] 24.69 – 25.01 – 25.33
previous perihelion distance [au] 859.6 – 868.1 – 876.7
previous aphelion distance [103 au] 78.1 – 79.1 – 80.1
time interval to previous perihelion [Myr] 7.67 – 7.84 – 8
percentage of VCs with qprev > 20100
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.
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] 24.78 – 25.14 – 25.52
previous perihelion distance [au] 17.3 – 18.6 – 20.1
previous aphelion distance [103 au] 78.4 – 79.5 – 80.7
time interval to previous perihelion [Myr] 7.83 – 8.01 – 8.19
percentage of VCs with 10 < qprev < 2089
percentage of VCs with qprev > 2011