(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 (documentation) 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Number of unpublished observations 376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

residual plot

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

residual plot

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.