(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 |
0.090847090 ± 0.000000005 |
Inclination |
3.142097481 ± 0.000000138 ° |
Longitude of ascending node |
221.230537 ± 0.000003 ° |
Argument of perihelia |
238.494200 ± 0.000004 ° |
Mean anomaly |
19.563838 ± 0.000002 ° |
Orbital period |
11.96 yr |
Ephemeris & Observations
Ephemeris version |
NIMAv8 |
Observation file (documentation) |
omc_ast_NIMAv8.txt |
bsp file |
1143_Odysseus_nima_v8.bsp |
Date of first observation |
1930-01-28 |
Date of last observation |
2024-11-12 |
Number of observations used in the fit |
6858 |
Number of rejected observations |
58 |
Number of DES observations |
0 |
Number of MPC observations |
6349 |
Number of unpublished observations |
55 |
RMS of observations |
0.124 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date |
σα (arcsec) |
σδ (arcsec) |
2024-01 |
0.005 |
0.001 |
2024-07 |
0.003 |
0.001 |
2025-01 |
0.006 |
0.002 |
2025-07 |
0.004 |
0.001 |
2026-01 |
0.006 |
0.002 |
2026-07 |
0.005 |
0.002 |
2027-01 |
0.006 |
0.002 |
2027-07 |
0.006 |
0.002 |
2028-01 |
0.006 |
0.001 |
Ephemeris comparison
Difference between NIMAv8 and JPL108 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