C/2022 O1 ATLAS
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Comet C/2022 O1 was discovered on 26 July 2022 by ATLAS South Africa (Sutherland), that is about 5.5 months after its perihelion passage.
Comet had its closest approach to the Earth on 3 July 2021 (7.20nbsp;au), about 7.5 months before its perihelion passage. however, on the post-perihelion leg of orbit it had approach to Earth within 7.22 au (13 September 2022).
Thus, the GR solution given here is based on post-perihelion data span over 1.39 yr in a range of heliocentric distances from 7.50 au to 8.52 au.
This long-period comet (semimajor axis of about 7,000 au) suffers small planetary perturbations during its passage through the planetary system that lead to a more loose future orbit with semimajor axis of about 12,100 au.
Comet had its closest approach to the Earth on 3 July 2021 (7.20nbsp;au), about 7.5 months before its perihelion passage. however, on the post-perihelion leg of orbit it had approach to Earth within 7.22 au (13 September 2022).
Thus, the GR solution given here is based on post-perihelion data span over 1.39 yr in a range of heliocentric distances from 7.50 au to 8.52 au.
This long-period comet (semimajor axis of about 7,000 au) suffers small planetary perturbations during its passage through the planetary system that lead to a more loose future orbit with semimajor axis of about 12,100 au.
| solution description | ||
|---|---|---|
| number of observations | 191 | |
| data interval | 2022 07 26 – 2025 02 22 | |
| data type | observed only after perihelion (POST) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 7.5 au – 8.52au | |
| 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 | 376 | |
| RMS [arcseconds] | 0.43 | |
| orbit quality class | 1a | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2022 08 09 | |
| perihelion date | 2022 02 15.48997204 | ± 0.01541952 |
| perihelion distance [au] | 7.42997861 | ± 0.00003470 |
| eccentricity | 1.00506913 | ± 0.00001309 |
| argument of perihelion [°] | 268.880459 | ± 0.001153 |
| ascending node [°] | 49.907318 | ± 0.000195 |
| inclination [°] | 71.045002 | ± 0.000058 |
| reciprocal semi-major axis [10-6 au-1] | -682.25 | ± 1.76 |
Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.