C/2013 H2 Boattini
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Comet C/2013 H2 was discovered on 22 April 2013 by Andrea Boattini with Catalina Sky Survey, that is 9 months before its perihelion passage. This comet was observed during three oppositions until 11 June 2015.
Comet had its closest approaches to the Earth on 3 June 2013 (6.672 au), about 1.5 month after discovery; however, and in the next oppositions it approached the Earth at the similar distance on 10 May 2014 (6.700 au), 3.5 months after perihelion passage.
Solution given here is based on data spanning over 2.14 yr in a range of heliocentric distances: 7.70 au – 7.499 au (perihelion) – 8.13 au.
This comet (original semimajor axis a bit shorter than 10000 au) suffers insignificant planetary perturbations during its passage through the planetary system and its future semimajor axis will be almost unchanged after leaving the planetary zone.

solution description
number of observations 223
data interval 2013 04 22 – 2015 06 11
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 7.7 au – 7.50 au (perihelion) – 8.13 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 438
RMS [arcseconds] 0.44
orbit quality class 1a
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] 109.34 ± 1.74
next perihelion distance [au] 7.146 ± 0.018
next aphelion distance [103 au] 18.3 ± 0.3
time interval to next perihelion [Myr] 0.874 ± 0.021
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.