(11351) Leucus
Object
| Object |
(11351) Leucus |
| Diameter(1) |
34 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
10.94 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460600.5 |
| Semi major axis |
5.307755 ± 0.000000 au |
| Eccentricity |
0.065793133 ± 0.000000039 |
| Inclination |
11.544111161 ± 0.000001343 ° |
| Longitude of ascending node |
251.073007 ± 0.000014 ° |
| Argument of perihelia |
161.917293 ± 0.000029 ° |
| Mean anomaly |
91.282622 ± 0.000022 ° |
| Orbital period |
12.23 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv6 |
| Observation file (documentation) |
omc_ast_NIMAv6.txt |
| bsp file |
11351_Leucus_nima_v6.bsp |
| Date of first observation |
1982-07-25 |
| Date of last observation |
2024-05-26 |
| Number of observations used in the fit |
3011 |
| Number of rejected observations |
6 |
| Number of DES observations |
0 |
| Number of MPC observations |
3012 |
| Number of unpublished observations |
5 |
| RMS of observations |
0.339 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.040 |
0.017 |
| 2024-07 |
0.030 |
0.012 |
| 2025-01 |
0.039 |
0.016 |
| 2025-07 |
0.033 |
0.014 |
| 2026-01 |
0.036 |
0.013 |
| 2026-07 |
0.036 |
0.014 |
| 2027-01 |
0.033 |
0.010 |
| 2027-07 |
0.038 |
0.013 |
| 2028-01 |
0.030 |
0.009 |
Ephemeris comparison
Difference between NIMAv6 and JPL25 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.
Previous NIMA versions