(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 | 189.707935 ± 0.030687 au |
| Eccentricity | 0.953936438 ± 0.000007296 |
| Inclination | 125.350113532 ± 0.000012258 ° |
| Longitude of ascending node | 275.974888 ± 0.000054 ° |
| Argument of perihelia | 152.960865 ± 0.000382 ° |
| Mean anomaly | 359.516686 ± 0.000119 ° |
| Orbital period | 2612.98 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv3 |
| Observation file |
omc_ast_NIMAv3.txt |
| bsp file | 468861_2013LU28_nima_v3.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2021-02-19 |
| Number of observations used in the fit | 559 |
| Number of rejected observations | 9 |
| Number of DES observations | 0 |
| Number of MPC observations | 399 |
| Number of unpublished observations | 169 |
| RMS of observations | 0.273 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) |
| 2020-01 | 0.056 | 0.072 |
| 2020-07 | 0.067 | 0.034 |
| 2021-01 | 0.046 | 0.055 |
| 2021-07 | 0.176 | 0.050 |
| 2022-01 | 0.150 | 0.071 |
| 2022-07 | 0.402 | 0.099 |
| 2023-01 | 0.468 | 0.101 |
| 2023-07 | 0.672 | 0.384 |
| 2024-01 | 0.897 | 0.526 |
Ephemeris comparison
Difference between NIMAv3 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.