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+ | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2019 02 06 | |
| perihelion date | 2019 02 02.50358723 | ± 0.00051080 |
| perihelion distance [au] | 3.92115462 | ± 0.00000726 |
| eccentricity | 1.00210444 | ± 0.00000331 |
| argument of perihelion [°] | 284.749677 | ± 0.000134 |
| ascending node [°] | 2.177238 | ± 0.000011 |
| inclination [°] | 54.178751 | ± 0.000015 |
| reciprocal semi-major axis [10-6 au-1] | -536.69 | ± 0.84 |