(468861) 2013LU28
This object has a more recent orbit available here
Object
| Object | (468861) 2013LU28 |
| Diameter(1) | 120 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 8.45 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 183.382375 ± 0.013393 au |
| Eccentricity | 0.952321453 ± 0.000003440 |
| Inclination | 125.312039736 ± 0.000007161 ° |
| Longitude of ascending node | 276.050333 ± 0.000012 ° |
| Argument of perihelia | 152.981480 ± 0.000102 ° |
| Mean anomaly | 0.047185 ± 0.000004 ° |
| Orbital period | 2483.39 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv11 |
| Observation file |
omc_ast_NIMAv11.txt |
| bsp file | 468861_2013LU28_nima_v11.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2024-12-17 |
| Number of observations used in the fit | 2450 |
| Number of rejected observations | 9 |
| Number of DES observations | 0 |
| Number of MPC observations | 1552 |
| Number of unpublished observations | 881 |
| RMS of observations | 0.231 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv11 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.033 | 0.027 |
| 2024-07 | 0.027 | 0.030 |
| 2025-01 | 0.043 | 0.046 |
| 2025-07 | 0.052 | 0.065 |
| 2026-01 | 0.090 | 0.115 |
| 2026-07 | 0.087 | 0.122 |
| 2027-01 | 0.144 | 0.202 |
| 2027-07 | 0.128 | 0.187 |
| 2028-01 | 0.197 | 0.278 |
Ephemeris comparison
Difference between NIMAv11 and JPL34 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.