C/2017 F2 PANSTARRS
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Comet C/2017 F2 was discovered on 31 March 2017 with Pan-STARRS 1 telescope (Haleakala), that is about 8 months before its perihelion passage. This comet was rarely observed until 6 March 2019.

Comet had its closest approach to the Earth on 31 March 2018 (6.070 au), about 4 months after its perihelion passage.

The preferred solution given here is based on data spanning over 1.93 yr in a range of heliocentric distances: 7.10 au – 6.928 au (perihelion) – 7.56 au.

This Oort spike comet suffers moderate planetary perturbations during its passage through the planetary system; these perturbations lead to escape the comet from the planetary zone on a hyperbolic orbit (see future barycentric orbits).
solution description
number of observations 74
data interval 2017 03 31 – 2019 03 06
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 7.1 au – 6.93 au (perihelion) – 7.56 au
detectability of NG effects in the comet's motion NG effects not determinable
type of model of motion GR - gravitational orbit
data weighting NO
number of residuals 127
RMS [arcseconds] 0.25
orbit quality class 1a
orbital elements (barycentric ecliptic J2000)
Epoch 2322 09 06
perihelion date 2017 11 26.90529225 ± 0.00367905
perihelion distance [au] 6.92190546 ± 0.00001201
eccentricity 1.00218641 ± 0.00001221
argument of perihelion [°] 134.912437 ± 0.000271
ascending node [°] 38.612082 ± 0.000041
inclination [°] 42.51432 ± 0.000022
reciprocal semi-major axis [10-6 au-1] -315.87 ± 1.76
file containing 5001 VCs swarm
2017f2d1.bpl
Six 2D-projections of the 6D space of future swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.