C/1941 K1 Van Gent
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Comet C/1941 K1 was discovered on 27 May 1941 by Hendrik van Gent (), that is about three months before perihelion passage, and the comet was last seen on 18 February 1942 [Kronk, Cometography: Volume 4].
This comet made its closest approach to the Earth on 21 June 1941 (0.603 au), that is almost a month after its discovery. The next close approach to the Earth was on 24 November (0.771 au).
Solution given here is based on data spanning over 0.710 yr in a range of heliocentric distances from 1.759 au through perihelion (0.875 au) to 2.738 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system and left the planetary zone on a slightly more tight orbit in comparison to its original barycentric orbit (see future barycentric orbit).
More details in Królikowska et al. 2014.

solution description
number of observations 461
data interval 1941 06 04 – 1942 02 18
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 1.76 au – 0.88 au (perihelion) – 2.74 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 801
RMS [arcseconds] 2.22
orbit quality class 1b
orbital elements (heliocentric ecliptic J2000)
Epoch 1941 09 03
perihelion date 1941 09 03.18412245 ± 0.00005140
perihelion distance [au] 0.87479022 ± 0.00000031
eccentricity 1.00026410 ± 0.00000216
argument of perihelion [°] 85.321879 ± 0.000038
ascending node [°] 257.559607 ± 0.000024
inclination [°] 94.517037 ± 0.000106
recip semi-major axis [10-6 au-1] -301.90 ± 2.47
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