(4063) Euforbo
Object
| Object |
(4063) Euforbo |
| Diameter(1) |
96 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
8.81 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
5.194987 ± 0.000000 au |
| Eccentricity |
0.119786097 ± 0.000000014 |
| Inclination |
18.931843102 ± 0.000000288 ° |
| Longitude of ascending node |
113.514855 ± 0.000001 ° |
| Argument of perihelia |
319.272752 ± 0.000009 ° |
| Mean anomaly |
80.929782 ± 0.000011 ° |
| Orbital period |
11.84 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv8 |
| Observation file (documentation) |
omc_ast_NIMAv8.txt |
| bsp file |
4063_Euforbo_nima_v8.bsp |
| Date of first observation |
1943-03-09 |
| Date of last observation |
2025-07-13 |
| Number of observations used in the fit |
5300 |
| Number of rejected observations |
20 |
| Number of DES observations |
0 |
| Number of MPC observations |
5040 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.128 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 |
0.026 |
0.003 |
| 2024-07 |
0.018 |
0.002 |
| 2025-01 |
0.022 |
0.005 |
| 2025-07 |
0.018 |
0.004 |
| 2026-01 |
0.018 |
0.007 |
| 2026-07 |
0.018 |
0.006 |
| 2027-01 |
0.016 |
0.007 |
| 2027-07 |
0.019 |
0.008 |
| 2028-01 |
0.015 |
0.006 |
Ephemeris comparison
Difference between NIMAv8 and JPL104 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