C/2018 S3 TESS
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Comet C/2018 S3 was discovered on 22 September 2018 by Transiting Exoplanet Survey Satellite (TESS), about two years after its perihelion passage; later 13 observations were found going more than 4.5 yr back to 29 June 2014 (all by Cerro Tololo-DECam). This comet was observed only by TESS and Cerro Tololo-DECam, and was last seen on 1 December 2018 by Cerro Tololo-DECam.
The solution given here is based solely on the data from Cerro Tololo-DECam and span over 4.79 yr in a range of heliocentric distances: 9.53 au – 8.01 au (perihelion) – 9.59 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that lead to a future orbit with greater semimajor-axis (see future barycentric orbit).
The solution given here is based solely on the data from Cerro Tololo-DECam and span over 4.79 yr in a range of heliocentric distances: 9.53 au – 8.01 au (perihelion) – 9.59 au.
This Oort spike comet suffers tiny planetary perturbations during its passage through the planetary system that lead to a future orbit with greater semimajor-axis (see future barycentric orbit).
| solution description | ||
|---|---|---|
| number of observations | 17 | |
| data interval | 2014 02 15 – 2018 12 01 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 9.53 au – 8.01 au (perihelion) – 9.59 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 | 34 | |
| RMS [arcseconds] | 0.13 | |
| orbit quality class | 1a+ | |
| next 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 | |
| next reciprocal semi-major axis [10-6 au-1] | 44.57 – 46.22 – 47.90 | |
| next perihelion distance [au] | 18 – 21 – 23 | |
| next aphelion distance [103 au] | 41.7 – 43.2 – 44.9 | |
| time interval to next perihelion [Myr] | 3.01 – 3.18 – 3.35 | |
| percentage of VCs with 10 < qnext < 20 | 39 | |
| percentage of VCs with qnext > 20 | 61 | |
| next 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 | |
| next reciprocal semi-major axis [10-6 au-1] | 44.74 – 46.36 – 48.00 | |
| next perihelion distance [au] | 3.2 – 3.6 – 4 | |
| next aphelion distance [103 au] | 41.7 – 43.1 – 44.7 | |
| time interval to next perihelion [Myr] | 2.99 – 3.15 – 3.33 | |
| percentage of VCs with qnext < 10 | 100 | |