(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 | 183.380726 ± 0.013416 au |
| Eccentricity | 0.952321034 ± 0.000003446 |
| Inclination | 125.312040187 ± 0.000007129 ° |
| Longitude of ascending node | 276.050341 ± 0.000012 ° |
| Argument of perihelia | 152.981501 ± 0.000100 ° |
| Mean anomaly | 0.047186 ± 0.000005 ° |
| Orbital period | 2483.35 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv12 |
| Observation file |
omc_ast_NIMAv12.txt |
| bsp file | 468861_2013LU28_nima_v12.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2025-01-19 |
| Number of observations used in the fit | 2426 |
| Number of rejected observations | 61 |
| Number of DES observations | 0 |
| Number of MPC observations | 1552 |
| Number of unpublished observations | 909 |
| RMS of observations | 0.229 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv12 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.034 | 0.027 |
| 2024-07 | 0.027 | 0.029 |
| 2025-01 | 0.042 | 0.044 |
| 2025-07 | 0.049 | 0.061 |
| 2026-01 | 0.086 | 0.109 |
| 2026-07 | 0.084 | 0.116 |
| 2027-01 | 0.139 | 0.194 |
| 2027-07 | 0.123 | 0.180 |
| 2028-01 | 0.191 | 0.269 |
Ephemeris comparison
Difference between NIMAv12 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.