(1873) Agenor
Object
| Object |
(1873) Agenor |
| Diameter(1) |
53 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
10.25 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460600.5 |
| Semi major axis |
5.223879 ± 0.000000 au |
| Eccentricity |
0.091128960 ± 0.000000024 |
| Inclination |
21.892824342 ± 0.000000457 ° |
| Longitude of ascending node |
197.894066 ± 0.000002 ° |
| Argument of perihelia |
357.518230 ± 0.000011 ° |
| Mean anomaly |
158.328068 ± 0.000009 ° |
| Orbital period |
11.94 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
1873_Agenor_nima_v3.bsp |
| Date of first observation |
1971-03-25 |
| Date of last observation |
2024-07-12 |
| Number of observations used in the fit |
3635 |
| Number of rejected observations |
11 |
| Number of DES observations |
0 |
| Number of MPC observations |
3333 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.114 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 |
0.003 |
| 2024-07 |
0.025 |
0.003 |
| 2025-01 |
0.023 |
0.003 |
| 2025-07 |
0.024 |
0.003 |
| 2026-01 |
0.026 |
0.002 |
| 2026-07 |
0.024 |
0.002 |
| 2027-01 |
0.029 |
0.003 |
| 2027-07 |
0.025 |
0.003 |
| 2028-01 |
0.034 |
0.004 |
Ephemeris comparison
Difference between NIMAv3 and JPL60 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