(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 | 8.49 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 191.970248 ± 0.029345 au |
| Eccentricity | 0.954453974 ± 0.000006826 |
| Inclination | 125.339348235 ± 0.000008232 ° |
| Longitude of ascending node | 276.016178 ± 0.000033 ° |
| Argument of perihelia | 152.902614 ± 0.000296 ° |
| Mean anomaly | 359.748080 ± 0.000059 ° |
| Orbital period | 2659.86 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 468861_2013LU28_nima_v5.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2022-06-23 |
| Number of observations used in the fit | 987 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 790 |
| Number of unpublished observations | 202 |
| RMS of observations | 0.293 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.048 | 0.046 |
| 2022-07 | 0.108 | 0.053 |
| 2023-01 | 0.121 | 0.064 |
| 2023-07 | 0.199 | 0.134 |
| 2024-01 | 0.264 | 0.178 |
| 2024-07 | 0.295 | 0.295 |
| 2025-01 | 0.421 | 0.448 |
| 2025-07 | 0.393 | 0.500 |
| 2026-01 | 0.563 | 0.759 |
Ephemeris comparison
Difference between NIMAv5 and JPL25 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.