(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 | 191.972907 ± 0.025163 au |
| Eccentricity | 0.954454588 ± 0.000005870 |
| Inclination | 125.339348049 ± 0.000007667 ° |
| Longitude of ascending node | 276.016182 ± 0.000025 ° |
| Argument of perihelia | 152.902585 ± 0.000225 ° |
| Mean anomaly | 359.748086 ± 0.000051 ° |
| Orbital period | 2659.92 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 468861_2013LU28_nima_v6.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2023-03-21 |
| Number of observations used in the fit | 1175 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 853 |
| Number of unpublished observations | 327 |
| RMS of observations | 0.274 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.038 | 0.037 |
| 2022-07 | 0.041 | 0.037 |
| 2023-01 | 0.055 | 0.045 |
| 2023-07 | 0.076 | 0.067 |
| 2024-01 | 0.101 | 0.084 |
| 2024-07 | 0.131 | 0.141 |
| 2025-01 | 0.198 | 0.217 |
| 2025-07 | 0.201 | 0.263 |
| 2026-01 | 0.311 | 0.421 |
Ephemeris comparison
Difference between NIMAv6 and JPL27 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.