(3793) Leonteus
This object has a more recent orbit available here
Object
| Object | (3793) Leonteus |
| Diameter(1) | 112 km |
| Dynamic class(1) | trojan |
| Absolute magnitude | 8.80 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 5.216833 ± 0.000000 au |
| Eccentricity | 0.089036662 ± 0.000000054 |
| Inclination | 20.901620167 ± 0.000003855 ° |
| Longitude of ascending node | 200.512223 ± 0.000015 ° |
| Argument of perihelia | 262.688681 ± 0.000045 ° |
| Mean anomaly | 228.236766 ± 0.000047 ° |
| Orbital period | 11.92 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 3793_Leonteus_nima_v1.bsp |
| Date of first observation | 1951-11-29 |
| Date of last observation | 2018-12-30 |
| Number of observations used in the fit | 1923 |
| Number of rejected observations | 13 |
| Number of DES observations | 0 |
| Number of MPC observations | 1936 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.518 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.013 | 0.013 |
| 2018-07 | 0.020 | 0.018 |
| 2019-01 | 0.016 | 0.014 |
| 2019-07 | 0.025 | 0.019 |
| 2020-01 | 0.022 | 0.016 |
| 2020-07 | 0.031 | 0.019 |
| 2021-01 | 0.031 | 0.018 |
| 2021-07 | 0.037 | 0.016 |
| 2022-01 | 0.045 | 0.018 |
Ephemeris comparison
Difference between NIMAv1 and JPL63 in right ascension (weighted by cos δ) and in declination.
Gray area represents the 1-σ uncertainty of NIMA ephemeris. Green dots represent the DES observations.