C/2021 Q6 PanSTARRS
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Comet C/2021 Q6 was discovered on 22 August 2021 with the Pan-STARRS 1 telescope (Haleakala), that is two years and seven months before its perihelion passage.
Comet had its closest approach to the Earth on 2 September 2024 (7.76 au), about half a year after its perihelion passage.
Preferred GR solution given here is based on data span over 3.81 yr in a range of heliocentric distances: 10.99 au – 8.71 au (perihelion) – 8.80 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that likely lead to escape this comet from the solar system on a marginally hyperbolic orbit.
Comet had its closest approach to the Earth on 2 September 2024 (7.76 au), about half a year after its perihelion passage.
Preferred GR solution given here is based on data span over 3.81 yr in a range of heliocentric distances: 10.99 au – 8.71 au (perihelion) – 8.80 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that likely lead to escape this comet from the solar system on a marginally hyperbolic orbit.
| solution description | ||
|---|---|---|
| number of observations | 371 | |
| data interval | 2021 01 02 – 2024 10 25 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 10.99 au – 8.71 au (perihelion) – 8.8 au | |
| 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 | 733 | |
| RMS [arcseconds] | 0.28 | |
| orbit quality class | 1a+ | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2024 03 31 | |
| perihelion date | 2024 03 25.04636770 | ± 0.00166555 |
| perihelion distance [au] | 8.70779430 | ± 0.00000808 |
| eccentricity | 1.00112401 | ± 0.00000466 |
| argument of perihelion [°] | 141.022629 | ± 0.000096 |
| ascending node [°] | 133.536708 | ± 0.000027 |
| inclination [°] | 161.846546 | ± 0.000005 |
| reciprocal semi-major axis [10-6 au-1] | -129.08 | ± 0.53 |
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.