(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 |
0.078113192 ± 0.000000016 |
| Inclination |
11.644840185 ± 0.000000375 ° |
| Longitude of ascending node |
252.106071 ± 0.000003 ° |
| Argument of perihelia |
118.236459 ± 0.000010 ° |
| Mean anomaly |
10.339857 ± 0.000015 ° |
| Orbital period |
12.09 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
17365_Thymbraeus_nima_v3.bsp |
| Date of first observation |
1954-11-23 |
| Date of last observation |
2025-07-13 |
| Number of observations used in the fit |
3950 |
| Number of rejected observations |
194 |
| Number of DES observations |
0 |
| Number of MPC observations |
3660 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.146 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.017 |
0.007 |
| 2024-07 |
0.025 |
0.009 |
| 2025-01 |
0.024 |
0.009 |
| 2025-07 |
0.027 |
0.005 |
| 2026-01 |
0.032 |
0.006 |
| 2026-07 |
0.027 |
0.002 |
| 2027-01 |
0.037 |
0.004 |
| 2027-07 |
0.025 |
0.006 |
| 2028-01 |
0.035 |
0.011 |
Ephemeris comparison
Difference between NIMAv3 and JPL53 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