C/2020 T4 PanSTARRS
more info
Comet C/2020 T4 was discovered on 15 October 2020, about 9.5 months before its perihelion passage, later two series of pre-discovery observations were found from 9 October 2020 and 26 September 2020. This comet was observed to 17 June 2021 (to about two weeks before perihelion passage).
Solutions given here are based on data span over 0.726 yr in a range of heliocentric distances from 3.78 au to 2.20 au.
This Oort spike comet suffers rather small planetary perturbations during its passage through the planetary system; however, they lead to escape the comet from the solar system on hyperbolic barycentric orbit.
Solutions given here are based on data span over 0.726 yr in a range of heliocentric distances from 3.78 au to 2.20 au.
This Oort spike comet suffers rather small planetary perturbations during its passage through the planetary system; however, they lead to escape the comet from the solar system on hyperbolic barycentric orbit.
| solution description | ||
|---|---|---|
| number of observations | 174 | |
| data interval | 2020 09 26 – 2021 06 17 | |
| data type | observed only before perihelion (PRE) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 3.78 au – 2.2au | |
| 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 | 336 | |
| RMS [arcseconds] | 0.23 | |
| orbit quality class | 1b | |
| orbital elements (barycentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 1720 10 11 | |
| perihelion date | 2021 07 04.64745495 | ± 0.00025476 |
| perihelion distance [au] | 2.18937405 | ± 0.00000754 |
| eccentricity | 0.99989958 | ± 0.00000410 |
| argument of perihelion [°] | 79.672856 | ± 0.000236 |
| ascending node [°] | 50.729931 | ± 0.000013 |
| inclination [°] | 83.757021 | ± 0.000118 |
| reciprocal semi-major axis [10-6 au-1] | 45.87 | ± 1.87 |
| file containing 5001 VCs swarm |
|---|
| 2020t4pa.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.