(468861) 2013LU28
This object has a more recent orbit available here
Object
| Object | (468861) 2013LU28 |
| Diameter(1) | 120 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 8.45 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 183.374990 ± 0.008121 au |
| Eccentricity | 0.952319568 ± 0.000002094 |
| Inclination | 125.312041349 ± 0.000006569 ° |
| Longitude of ascending node | 276.050339 ± 0.000003 ° |
| Argument of perihelia | 152.981556 ± 0.000048 ° |
| Mean anomaly | 0.047188 ± 0.000003 ° |
| Orbital period | 2483.24 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv14 |
| Observation file |
omc_ast_NIMAv14.txt |
| bsp file | 468861_2013LU28_nima_v14.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2025-02-18 |
| Number of observations used in the fit | 2627 |
| Number of rejected observations | 63 |
| Number of DES observations | 0 |
| Number of MPC observations | 1751 |
| Number of unpublished observations | 913 |
| RMS of observations | 0.227 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv14 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.025 | 0.013 |
| 2024-07 | 0.012 | 0.007 |
| 2025-01 | 0.011 | 0.004 |
| 2025-07 | 0.005 | 0.012 |
| 2026-01 | 0.016 | 0.029 |
| 2026-07 | 0.019 | 0.036 |
| 2027-01 | 0.042 | 0.069 |
| 2027-07 | 0.039 | 0.067 |
| 2028-01 | 0.070 | 0.108 |
Ephemeris comparison
Difference between NIMAv14 and JPL36 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.