(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 | 0.089036654 ± 0.000000051 |
| Inclination | 20.901616204 ± 0.000001411 ° |
| Longitude of ascending node | 200.512252 ± 0.000013 ° |
| Argument of perihelia | 262.688620 ± 0.000044 ° |
| Mean anomaly | 228.236792 ± 0.000040 ° |
| Orbital period | 11.92 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 3793_Leonteus_nima_v2.bsp |
| Date of first observation | 1951-11-29 |
| Date of last observation | 2018-12-30 |
| Number of observations used in the fit | 2142 |
| Number of rejected observations | 11 |
| Number of DES observations | 0 |
| Number of MPC observations | 1936 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.109 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.020 | 0.004 |
| 2019-07 | 0.035 | 0.008 |
| 2020-01 | 0.031 | 0.005 |
| 2020-07 | 0.047 | 0.006 |
| 2021-01 | 0.047 | 0.004 |
| 2021-07 | 0.055 | 0.002 |
| 2022-01 | 0.067 | 0.003 |
| 2022-07 | 0.059 | 0.006 |
| 2023-01 | 0.083 | 0.010 |
Ephemeris comparison
Difference between NIMAv2 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.