(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Number of unpublished observations | 376 |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.