(468861) 2013LU28
This object has a more recent orbit available here
Object
| Object | (468861) 2013LU28 |
| Diameter(1) | 106 km |
| Dynamic class(1) | Centaur? |
| Absolute magnitude | 8.37 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459200.5 |
| Semi major axis | 189.703386 ± 0.030730 au |
| Eccentricity | 0.953935397 ± 0.000007297 |
| Inclination | 125.350114646 ± 0.000008893 ° |
| Longitude of ascending node | 275.974892 ± 0.000037 ° |
| Argument of perihelia | 152.960957 ± 0.000347 ° |
| Mean anomaly | 359.516668 ± 0.000119 ° |
| Orbital period | 2612.89 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 468861_2013LU28_nima_v4.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2022-02-02 |
| Number of observations used in the fit | 797 |
| Number of rejected observations | 13 |
| Number of DES observations | 0 |
| Number of MPC observations | 599 |
| Number of unpublished observations | 211 |
| RMS of observations | 0.284 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.036 | 0.045 |
| 2021-07 | 0.082 | 0.035 |
| 2022-01 | 0.069 | 0.051 |
| 2022-07 | 0.188 | 0.067 |
| 2023-01 | 0.214 | 0.076 |
| 2023-07 | 0.331 | 0.203 |
| 2024-01 | 0.443 | 0.274 |
| 2024-07 | 0.465 | 0.448 |
| 2025-01 | 0.648 | 0.679 |
Ephemeris comparison
Difference between NIMAv4 and JPL16 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.