(4501) Eurypylos
Object
| Object |
(4501) Eurypylos |
| Diameter(1) |
46 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
10.59 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
5.228875 ± 0.000000 au |
| Eccentricity |
0.054375823 ± 0.000000013 |
| Inclination |
8.293494657 ± 0.000000295 ° |
| Longitude of ascending node |
244.260589 ± 0.000002 ° |
| Argument of perihelia |
181.593662 ± 0.000014 ° |
| Mean anomaly |
95.075918 ± 0.000012 ° |
| Orbital period |
11.96 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
4501_Eurypylos_nima_v3.bsp |
| Date of first observation |
1951-12-01 |
| Date of last observation |
2025-06-25 |
| Number of observations used in the fit |
4568 |
| Number of rejected observations |
19 |
| Number of DES observations |
0 |
| Number of MPC observations |
3915 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.133 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 |
0.022 |
0.008 |
| 2024-07 |
0.016 |
0.006 |
| 2025-01 |
0.022 |
0.009 |
| 2025-07 |
0.019 |
0.007 |
| 2026-01 |
0.022 |
0.007 |
| 2026-07 |
0.022 |
0.007 |
| 2027-01 |
0.022 |
0.004 |
| 2027-07 |
0.026 |
0.005 |
| 2028-01 |
0.021 |
0.001 |
Ephemeris comparison
Difference between NIMAv3 and JPL64 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