(44594) 1999OX3
Object
| Object |
(44594) 1999OX3 |
| Diameter(1) |
135 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
7.15 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
32.692487 ± 0.000334 au |
| Eccentricity |
0.461552743 ± 0.000004505 |
| Inclination |
2.620085881 ± 0.000007308 ° |
| Longitude of ascending node |
259.176295 ± 0.000337 ° |
| Argument of perihelia |
144.502168 ± 0.000496 ° |
| Mean anomaly |
2.329307 ± 0.000082 ° |
| Orbital period |
186.93 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv8 |
| Observation file (documentation) |
omc_ast_NIMAv8.txt |
| bsp file |
44594_1999OX3_nima_v8.bsp |
| Date of first observation |
1999-07-21 |
| Date of last observation |
2025-03-19 |
| Number of observations used in the fit |
1057 |
| Number of rejected observations |
3 |
| Number of DES observations |
9 |
| Number of MPC observations |
1022 |
| Number of unpublished observations |
29 |
| RMS of observations |
0.300 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 |
0.050 |
0.041 |
| 2024-07 |
0.080 |
0.043 |
| 2025-01 |
0.073 |
0.047 |
| 2025-07 |
0.114 |
0.048 |
| 2026-01 |
0.110 |
0.052 |
| 2026-07 |
0.155 |
0.052 |
| 2027-01 |
0.158 |
0.057 |
| 2027-07 |
0.204 |
0.055 |
| 2028-01 |
0.216 |
0.061 |
Ephemeris comparison
Difference between NIMAv8 and JPL57 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