C/2020 O2 Amaral
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Comet C/2020 O2 was discovered on 23 July 2020, more than one year before its perihelion passage. In the moment of orbit determination, this comet was still observed.
Currently, solutions (GR and NG) based on pre-perihelion data are given. Therefore, the data arc span over 1.10 yr in a range of heliocentric distances from 5.76 au to 4.86 au.
This is Oort spike comet.
Currently, solutions (GR and NG) based on pre-perihelion data are given. Therefore, the data arc span over 1.10 yr in a range of heliocentric distances from 5.76 au to 4.86 au.
This is Oort spike comet.
| solution description | ||
|---|---|---|
| number of observations | 507 | |
| data interval | 2020 07 23 – 2021 08 28 | |
| data arc selection | data generally limited to pre-perihelion (PRE) | |
| range of heliocentric distances | 5.76 au – 4.86 au (perihelion) – 4.86 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 | 986 | |
| RMS [arcseconds] | 0.27 | |
| orbit quality class | 1a | |
| orbital elements (barycentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 1716 04 15 | |
| perihelion date | 2021 08 28.45942735 | ± 0.00063910 |
| perihelion distance [au] | 4.85714409 | ± 0.00000247 |
| eccentricity | 0.99978611 | ± 0.00000231 |
| argument of perihelion [°] | 10.342858 | ± 0.000087 |
| ascending node [°] | 256.680149 | ± 0.000003 |
| inclination [°] | 71.761024 | ± 0.000015 |
| reciprocal semi-major axis [10-6 au-1] | 44.04 | ± 0.48 |
| file containing 5001 VCs swarm |
|---|
| 2020o2pa.bmi |
Six 2D-projections of the 6D space of original swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.