C/2015 O1 PANSTARRS
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Comet C/2015 O1 was discovered on 19 July 2015 with Pan-STARRS 1 telescope (Haleakala), that is about months after its perihelion passage.
Some prediscovery images of this comet were found: taken on 15 and 17 of June 2015 by Space Surveillance Telescope (Atom Site).
Solutions given here are based on data spanning over 4.76 yr in a range of heliocentric distances: 8.65 au – 3.730 au (perihelion) – 7.28 au.
NG orbits using full data-arc as well as independently using pre-perihelion and post-perihelion data are determinable.
See also Królikowska and Dones 2023.
| solution description | ||
|---|---|---|
| number of observations | 2735 | |
| data interval | 2015 06 15 – 2018 05 25 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 8.65 au – 3.73 au (perihelion) – 3.83 au | |
| detectability of NG effects in the comet's motion | comet with determinable NG~orbit | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 5426 | |
| RMS [arcseconds] | 0.51 | |
| orbit quality class | 1a+ | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2018 03 23 | |
| perihelion date | 2018 02 19.02897501 | ± 0.00049629 |
| perihelion distance [au] | 3.72964132 | ± 0.00000135 |
| eccentricity | 0.99995771 | ± 0.00000296 |
| argument of perihelion [°] | 89.594760 | ± 0.000102 |
| ascending node [°] | 299.857336 | ± 0.000018 |
| inclination [°] | 127.211003 | ± 0.000005 |
| reciprocal semi-major axis [10-6 au-1] | 11.34 | ± 0.79 |