C/2017 F2 PANSTARRS
more info
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).
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 | |
| previous orbit statistics, both Galactic and stellar perturbations were taken into account | ||
|---|---|---|
| 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 | |
| previous reciprocal semi-major axis [10-6 au-1] | 18.15 – 19.86 – 21.64 | |
| previous perihelion distance [au] | 170 – 190 – 220 | |
| previous aphelion distance [103 au] | 92.3 – 101 – 110 | |
| time interval to previous perihelion [Myr] | 8.4 – 9.4 – 10 | |
| percentage of VCs with qprev > 20 | 100 | |
| previous orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| no. of returning VCs in the swarm | 4029 | * |
| no. of escaping VCs in the swarm | 972 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 15.66 – 17.68 – 19.79 | |
| previous perihelion distance [au] | 0.3 – 0.71 – 2.7 | R |
| previous aphelion distance [103 au] | 100 – 110 – 130 | |
| time interval to previous perihelion [Myr] | 10.7 – 12 – 13.2 | R |
| percentage of VCs with qprev < 10 | 100 | |