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 | 1905 | |
| data interval | 2019 02 08 – 2023 02 10 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 7.96 au – 3.60 au (perihelion) – 6.24 au | |
| type of model of motion | NC - non-gravitational orbits for symmetric CO-g(r)-like function | |
| data weighting | YES | |
| number of residuals | 3749 | |
| RMS [arcseconds] | 0.32 | |
| orbit quality class | 1a+ | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2019 02 06 | |
| perihelion date | 2021 06 23.01623760 | ± 0.00034038 |
| perihelion distance [au] | 3.59829486 | ± 0.00000339 |
| eccentricity | 1.00264591 | ± 0.00000190 |
| argument of perihelion [°] | 251.086494 | ± 0.000079 |
| ascending node [°] | 38.727473 | ± 0.000003 |
| inclination [°] | 54.169445 | ± 0.000008 |
| reciprocal semi-major axis [10-6 au-1] | -735.32 | ± 0.53 |
| non-gravitational parameters | ||
|---|---|---|
| A1 [10-8au/day2] | 0.62247 | ± 0.03381 |
| A2 [10-8au/day2] | -0.40875 | ± 0.02804 |
| A3 [10-8au/day2] | 0.34297 | ± 0.00329 |
| m | -2.00 | |
| n | 3.000 | |
| k | -2.6000 | |
| r0 [au] | 10.000 | |
| α | 0.0100 | |