C/2014 S1 PANSTARRS
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Comet C/2014 S1 was discovered on 19 September 2014 with Pan-STARRS 1 telescope (Haleakala), that is about 11 months after its perihelion passage. This comet was rarely observed until 3 September 2015.
Comet had its closest approach to the Earth on 13 November 2013 (7.561 au), about two weeks after its perihelion passage.
Solution given here is based on data spanning over 0.98 yr in a range of heliocentric distances: 8.37 au – 8.137 au (perihelion) – 9.10 au.
This Oort spike comet suffers extremely slight planetary perturbations during its passage through the planetary system and its semimajor axis will be almost unchanged after leaving the planetary zone (see future barycentric orbits).

solution description
number of observations 42
data interval 2014 09 19 – 2015 09 03
data type observed only after perihelion (POST)
data arc selection entire data set (STD)
range of heliocentric distances 8.37 au – 9.1au
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 84
RMS [arcseconds] 0.47
orbit quality class 1b
orbital elements (heliocentric ecliptic J2000)
Epoch 2013 11 04
perihelion date 2013 10 29.69164490 ± 0.08153943
perihelion distance [au] 8.13688695 ± 0.00014251
eccentricity 1.00010608 ± 0.00012218
argument of perihelion [°] 288.797851 ± 0.005607
ascending node [°] 352.674187 ± 0.000200
inclination [°] 123.797936 ± 0.000141
recip semi-major axis [10-6 au-1] -13.04 ± 15.02
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