(1143) Odysseus
Object
| Object |
(1143) Odysseus |
| Diameter(1) |
115 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
8.47 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460600.5 |
| Semi major axis |
5.230490 ± 0.000000 au |
| Eccentricity |
0.090847076 ± 0.000000044 |
| Inclination |
3.142100174 ± 0.000005103 ° |
| Longitude of ascending node |
221.230614 ± 0.000081 ° |
| Argument of perihelia |
238.494120 ± 0.000086 ° |
| Mean anomaly |
19.563840 ± 0.000029 ° |
| Orbital period |
11.96 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv7 |
| Observation file (documentation) |
omc_ast_NIMAv7.txt |
| bsp file |
1143_Odysseus_nima_v7.bsp |
| Date of first observation |
1930-01-28 |
| Date of last observation |
2024-05-08 |
| Number of observations used in the fit |
6258 |
| Number of rejected observations |
58 |
| Number of DES observations |
0 |
| Number of MPC observations |
6265 |
| Number of unpublished observations |
51 |
| RMS of observations |
3.604 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.038 |
0.024 |
| 2024-07 |
0.027 |
0.016 |
| 2025-01 |
0.042 |
0.025 |
| 2025-07 |
0.031 |
0.017 |
| 2026-01 |
0.039 |
0.022 |
| 2026-07 |
0.034 |
0.019 |
| 2027-01 |
0.035 |
0.018 |
| 2027-07 |
0.037 |
0.020 |
| 2028-01 |
0.031 |
0.016 |
Ephemeris comparison
Difference between NIMAv7 and JPL106 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