(17365) Thymbraeus
Object
| Object |
(17365) Thymbraeus |
| Diameter(1) |
45 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
10.58 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
5.266269 ± 0.000000 au |
| Eccentricity |
0.078113193 ± 0.000000015 |
| Inclination |
11.644840177 ± 0.000000353 ° |
| Longitude of ascending node |
252.106071 ± 0.000003 ° |
| Argument of perihelia |
118.236457 ± 0.000005 ° |
| Mean anomaly |
10.339861 ± 0.000004 ° |
| Orbital period |
12.09 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv4 |
| Observation file (documentation) |
omc_ast_NIMAv4.txt |
| bsp file |
17365_Thymbraeus_nima_v4.bsp |
| Date of first observation |
1954-11-23 |
| Date of last observation |
2025-10-05 |
| Number of observations used in the fit |
4152 |
| Number of rejected observations |
194 |
| Number of DES observations |
0 |
| Number of MPC observations |
3861 |
| Number of unpublished observations |
1 |
| RMS of observations |
0.146 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.004 |
0.002 |
| 2024-07 |
0.004 |
0.002 |
| 2025-01 |
0.004 |
0.002 |
| 2025-07 |
0.006 |
0.002 |
| 2026-01 |
0.008 |
0.002 |
| 2026-07 |
0.008 |
0.002 |
| 2027-01 |
0.013 |
0.003 |
| 2027-07 |
0.010 |
0.003 |
| 2028-01 |
0.015 |
0.005 |
Ephemeris comparison
Difference between NIMAv4 and JPL59 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