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 | |
| detectability of NG effects in the comet's motion | comet with NG effects strongly manifested in positional data fitting | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 2670 | |
| RMS [arcseconds] | 0.30 | |
| 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] | 41.70 – 42.48 – 43.26 | |
| previous perihelion distance [au] | 343 – 361 – 378 | |
| previous aphelion distance [103 au] | 45.9 – 46.7 – 47.6 | |
| time interval to previous perihelion [Myr] | 3.66 – 3.75 – 3.85 | |
| percentage of VCs with qprev > 20 | 100 | |
| previous orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| 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] | 41.20 – 41.84 – 42.49 | |
| previous perihelion distance [au] | 11 – 11.5 – 12.1 | |
| previous aphelion distance [103 au] | 47.1 – 47.8 – 48.5 | |
| time interval to previous perihelion [Myr] | 3.6 – 3.68 – 3.76 | |
| percentage of VCs with 10 < qprev < 20 | 100 | |