C/2017 AB5 PANSTARRS
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Comet C/2017 AB5 was discovered on 3 January 2017 with Pan-STARRS 1 telescope (Haleakala), that is more than a year before its perihelion passage. This comet was rather rarely observed until 25 April 2019.
Comet had its closest approach to the Earth on 18 January 2018 (8.395 au), about a month before its perihelion passage.
The preferred solution given here is based on data spanning over 2.31 yr in a range of heliocentric distances: 9.50 au – 9.22 au (perihelion) – 9.53 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system and will have a bit more tight future orbit (see future barycentric orbit).
Comet had its closest approach to the Earth on 18 January 2018 (8.395 au), about a month before its perihelion passage.
The preferred solution given here is based on data spanning over 2.31 yr in a range of heliocentric distances: 9.50 au – 9.22 au (perihelion) – 9.53 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system and will have a bit more tight future orbit (see future barycentric orbit).
| solution description | ||
|---|---|---|
| number of observations | 85 | |
| data interval | 2017 01 03 – 2019 04 25 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 9.5 au – 9.22 au (perihelion) – 9.53 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 | 158 | |
| RMS [arcseconds] | 0.37 | |
| orbit quality class | 1a | |
| next 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 | |
| next reciprocal semi-major axis [10-6 au-1] | 172.76 – 175.80 – 178.77 | |
| next perihelion distance [au] | 9.1592 – 9.1638 – 9.168 | |
| next aphelion distance [103 au] | 11.2 – 11.4 – 11.6 | |
| time interval to next perihelion [Myr] | 0.418 – 0.428 – 0.44 | |
| percentage of VCs with qnext < 10 | 100 | |
| next orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| 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 reciprocal semi-major axis [10-6 au-1] | 172.74 – 175.77 – 178.75 | |
| next perihelion distance [au] | 9.1424 – 9.1471 – 9.1513 | |
| next aphelion distance [103 au] | 11.2 – 11.4 – 11.6 | |
| time interval to next perihelion [Myr] | 0.418 – 0.429 – 0.44 | |
| percentage of VCs with qnext < 10 | 100 | |