C/2021 G3 PanSTARRS
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Comet C/2021 G3 was discovered on 1 April 2021 with the Pan-STARRS 1 telescope (Haleakala), that is seven months before its perihelion passage.
Comet had its closest approach to the Earth on 5 February 2022 (4.36 au), about 3.5 months after its perihelion passage.
GR solution given here is based on data span over 1.79 yr in a range of heliocentric distances: 5.52 au – 5.18 au (perihelion) – 5.99 au.
This Oort spike comet suffers almost negligible planetary perturbations during its passage through the planetary system; and its future orbit have semimajor axis still longer than 10,000 au.
Comet had its closest approach to the Earth on 5 February 2022 (4.36 au), about 3.5 months after its perihelion passage.
GR solution given here is based on data span over 1.79 yr in a range of heliocentric distances: 5.52 au – 5.18 au (perihelion) – 5.99 au.
This Oort spike comet suffers almost negligible planetary perturbations during its passage through the planetary system; and its future orbit have semimajor axis still longer than 10,000 au.
| solution description | ||
|---|---|---|
| number of observations | 63 | |
| data interval | 2021 02 09 – 2022 11 24 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 5.52 au – 5.18 au (perihelion) – 5.99 au | |
| detectability of NG effects in the comet's motion | NG effects not determinable | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | NO | |
| number of residuals | 121 | |
| RMS [arcseconds] | 0.31 | |
| orbit quality class | 1a | |
| previous orbit statistics, both Galactic and stellar perturbations were taken into account | ||
|---|---|---|
| no. of returning VCs in the swarm | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 22.74 – 26.08 – 28.78 | |
| previous perihelion distance [au] | 1700 – 2200 – 2900 | |
| previous aphelion distance [103 au] | 67.8 – 74.5 – 85 | |
| time interval to previous perihelion [Myr] | 5.9 – 7 – 8.2 | |
| percentage of VCs with qprev > 20 | 100 | |
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.
| previous_g orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| no. of returning VCs in the swarm | 5000 | * |
| no. of escaping VCs in the swarm | 1 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 21.83 – 25.14 – 28.59 | R |
| previous perihelion distance [au] | 58 – 120 – 290 | R |
| previous aphelion distance [103 au] | 70 – 79 – 91 | R |
| time interval to previous perihelion [Myr] | 6.3 – 7.6 – 9.2 | R |
| percentage of VCs with qprev > 20 | 100 | |