(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 | 8.30 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459000.5 |
| Semi major axis | 187.039312 ± 0.058770 au |
| Eccentricity | 0.953294591 ± 0.000014341 |
| Inclination | 125.350438315 ± 0.000018847 ° |
| Longitude of ascending node | 275.966484 ± 0.000087 ° |
| Argument of perihelia | 153.000809 ± 0.000762 ° |
| Mean anomaly | 359.428891 ± 0.000273 ° |
| Orbital period | 2558.04 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 468861_2013LU28_nima_v1.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2020-08-14 |
| Number of observations used in the fit | 405 |
| Number of rejected observations | 4 |
| Number of DES observations | 0 |
| Number of MPC observations | 399 |
| Number of unpublished observations | 10 |
| RMS of observations | 0.319 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.087 | 0.100 |
| 2020-07 | 0.076 | 0.057 |
| 2021-01 | 0.124 | 0.109 |
| 2021-07 | 0.211 | 0.087 |
| 2022-01 | 0.250 | 0.129 |
| 2022-07 | 0.472 | 0.123 |
| 2023-01 | 0.573 | 0.137 |
| 2023-07 | 0.781 | 0.431 |
| 2024-01 | 1.041 | 0.589 |
Ephemeris comparison
Difference between NIMAv1 and JPL14 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.