C/2019 F1 ATLAS-Africano
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Comet C/2019 F1 was discovered on 28/29 March 2019, more than 2 yr before its perihelion passage. Later a series of pre-discovery observations were found going backto 8 February 2019. In the moment of orbit determination, this comet was still observed.
Solutions (GR and NG) given here span over 4.01 yr in a range of heliocentric distances: 7.96 au – 3.60 au (perihelion) – 6.24 au; also orbit based on pre-perihelion data and post-perihelion data are presented.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
Solutions (GR and NG) given here span over 4.01 yr in a range of heliocentric distances: 7.96 au – 3.60 au (perihelion) – 6.24 au; also orbit based on pre-perihelion data and post-perihelion data are presented.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit (see future barycentric orbit).
| solution description | ||
|---|---|---|
| number of observations | 1354 | |
| data interval | 2019 02 08 – 2021 06 18 | |
| data arc selection | data generally limited to pre-perihelion (PRE) | |
| range of heliocentric distances | 7.96 au – 3.6au | |
| type of model of motion | NC - non-gravitational orbits for symmetric CO-g(r)-like function | |
| data weighting | YES | |
| number of residuals | 2670 | |
| RMS [arcseconds] | 0.29 | |
| orbit quality class | 1a | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2019 02 06 | |
| perihelion date | 2021 06 23.00298805 | ± 0.00130219 |
| perihelion distance [au] | 3.59830022 | ± 0.00000621 |
| eccentricity | 1.00269032 | ± 0.00000449 |
| argument of perihelion [°] | 251.085430 | ± 0.000144 |
| ascending node [°] | 38.727533 | ± 0.000006 |
| inclination [°] | 54.16932 | ± 0.000016 |
| reciprocal semi-major axis [10-6 au-1] | -747.66 | ± 1.25 |
| non-gravitational parameters | ||
|---|---|---|
| A1 [10-8au/day2] | 1.8899 | ± 0.1811 |
| A2 [10-8au/day2] | -1.967 | ± 0.1862 |
| A3 [10-8au/day2] | 0.10068 | ± 0.04255 |
| m | -2.00 | |
| n | 3.000 | |
| k | -2.6000 | |
| r0 [au] | 10.000 | |
| α | 0.0100 | |