(5027) Androgeos
Object
| Object |
(5027) Androgeos |
| Diameter(1) |
59 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
9.88 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2461200.5 |
| Semi major axis |
5.294213 ± 0.000000 au |
| Eccentricity |
0.064636826 ± 0.000000005 |
| Inclination |
31.453672175 ± 0.000000264 ° |
| Longitude of ascending node |
78.213500 ± 0.000000 ° |
| Argument of perihelia |
346.049605 ± 0.000008 ° |
| Mean anomaly |
101.236557 ± 0.000007 ° |
| Orbital period |
12.18 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
5027_Androgeos_nima_v3.bsp |
| Date of first observation |
1953-02-14 |
| Date of last observation |
2026-01-11 |
| Number of observations used in the fit |
5263 |
| Number of rejected observations |
225 |
| Number of DES observations |
0 |
| Number of MPC observations |
4879 |
| Number of unpublished observations |
2 |
| RMS of observations |
0.128 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 |
0.006 |
0.004 |
| 2024-07 |
0.005 |
0.002 |
| 2025-01 |
0.009 |
0.001 |
| 2025-07 |
0.007 |
0.001 |
| 2026-01 |
0.009 |
0.005 |
| 2026-07 |
0.008 |
0.004 |
| 2027-01 |
0.008 |
0.007 |
| 2027-07 |
0.009 |
0.007 |
| 2028-01 |
0.008 |
0.007 |
Ephemeris comparison
Difference between NIMAv3 and JPL70 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