C/2017 B3 LINEAR
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Comet C/2017 B3 was discovered on 26 January 2017 with LINEAR survey, that is about two years before its perihelion passage. Some prediscovery images of this comet were found: taken on 1 and 10 of April 2016 by Pan-STARRS 1 telescope (Haleakala). In 2020, this comet is still observed.
Comet had its closest approach to the Earth on 19 August 2019 (3.480 au), about a 6.5 months after its perihelion passage.
Solution given here is based on pre-perihelion data spanning over 2.14 yr in a range of heliocentric distances from 8.98 au to 4.49 au (23 May 2018).
This comet suffers small planetary perturbations during its passage through the planetary system; its original semimajor axis is shorter than 5,000 au (see future barycentric orbit).
Comet had its closest approach to the Earth on 19 August 2019 (3.480 au), about a 6.5 months after its perihelion passage.
Solution given here is based on pre-perihelion data spanning over 2.14 yr in a range of heliocentric distances from 8.98 au to 4.49 au (23 May 2018).
This comet suffers small planetary perturbations during its passage through the planetary system; its original semimajor axis is shorter than 5,000 au (see future barycentric orbit).
| solution description | ||
|---|---|---|
| number of observations | 277 | |
| data interval | 2016 04 01 – 2018 05 23 | |
| data type | observed only before perihelion (PRE) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 8.98 au – 4.49au | |
| 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 | 532 | |
| RMS [arcseconds] | 0.28 | |
| 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] | 300.34 – 301.41 – 302.51 | |
| previous perihelion distance [au] | 3.93017 – 3.93024 – 3.93032 | |
| previous aphelion distance [103 au] | 6.607 – 6.632 – 6.655 | |
| time interval to previous perihelion [Myr] | 0.1897 – 0.1907 – 0.1917 | |
| percentage of VCs with qprev < 10 | 100 | |
| previous 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 | |
| previous reciprocal semi-major axis [10-6 au-1] | 300.35 – 301.41 – 302.51 | |
| previous perihelion distance [au] | 3.93059 – 3.93067 – 3.93075 | |
| previous aphelion distance [103 au] | 6.607 – 6.631 – 6.655 | |
| time interval to previous perihelion [Myr] | 0.1896 – 0.1907 – 0.1917 | |
| percentage of VCs with qprev < 10 | 100 | |