C/2012 V1 PANSTARRS
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Comet C/2012 V1 was discovered on 3 November 2012 with Pan-STARRS 1 telescope (Haleakala), that is almost 9 months before its perihelion passage. It was observed until 13 August 2013 (see picture).
C/2012 V1 had its closest approach to the Earth on 5 August 2013 (1.163 au), about 2 weeks after its perihelion passage.
Solution given here is based on data spanning over 0.775 yr in a range of heliocentric distances: 3.58 au – 2.09 au (perihelion) – 2.11 au.
This probably Oort spike comet (slightly negative original 1/a) suffers moderate planetary perturbations during its passage through the planetary system that cause a tighter future orbit with a semimajor axis of about 1,300 au (see future barycentric orbits).
See also Królikowska 2020.

solution description
number of observations 97
data interval 2012 11 03 – 2013 08 13
data type significantly more measurements before perihelion (PRE+)
data arc selection entire data set (STD)
range of heliocentric distances 3.58 au – 2.09 au (perihelion) – 2.11 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 177
RMS [arcseconds] 0.36
orbit quality class 1b
next orbit elements (barycentric ecliptic J2000)
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
next recip semi-major axis [10-6 au-1] 787.89 ± 2.29
next perihelion distance [au] 2.09011 ± 0.00001
next aphelion distance [103 au] 2.536 ± 0.007
time interval to next perihelion [Myr] 0.0449 ± 0.0002
percentage of VCs with q < 10100
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