(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 | 191.973307 ± 0.021809 au |
| Eccentricity | 0.954454687 ± 0.000005094 |
| Inclination | 125.339348954 ± 0.000007547 ° |
| Longitude of ascending node | 276.016192 ± 0.000019 ° |
| Argument of perihelia | 152.902595 ± 0.000184 ° |
| Mean anomaly | 359.748086 ± 0.000044 ° |
| Orbital period | 2659.93 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 468861_2013LU28_nima_v9.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2023-11-19 |
| Number of observations used in the fit | 1404 |
| Number of rejected observations | 13 |
| Number of DES observations | 0 |
| Number of MPC observations | 1041 |
| Number of unpublished observations | 376 |
| RMS of observations | 0.268 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.044 | 0.033 |
| 2023-07 | 0.045 | 0.041 |
| 2024-01 | 0.059 | 0.052 |
| 2024-07 | 0.087 | 0.089 |
| 2025-01 | 0.136 | 0.140 |
| 2025-07 | 0.146 | 0.182 |
| 2026-01 | 0.234 | 0.301 |
| 2026-07 | 0.214 | 0.300 |
| 2027-01 | 0.328 | 0.463 |
Ephemeris comparison
Difference between NIMAv9 and JPL29 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.