(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 | 191.972569 ± 0.023975 au |
| Eccentricity | 0.954454513 ± 0.000005598 |
| Inclination | 125.339348931 ± 0.000007590 ° |
| Longitude of ascending node | 276.016191 ± 0.000023 ° |
| Argument of perihelia | 152.902597 ± 0.000208 ° |
| Mean anomaly | 359.748085 ± 0.000048 ° |
| Orbital period | 2659.91 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 468861_2013LU28_nima_v8.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2023-06-05 |
| Number of observations used in the fit | 1369 |
| Number of rejected observations | 7 |
| Number of DES observations | 0 |
| Number of MPC observations | 1041 |
| Number of unpublished observations | 335 |
| RMS of observations | 0.273 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.049 | 0.039 |
| 2023-07 | 0.054 | 0.054 |
| 2024-01 | 0.073 | 0.067 |
| 2024-07 | 0.100 | 0.114 |
| 2025-01 | 0.153 | 0.176 |
| 2025-07 | 0.163 | 0.220 |
| 2026-01 | 0.258 | 0.357 |
| 2026-07 | 0.236 | 0.351 |
| 2027-01 | 0.362 | 0.535 |
Ephemeris comparison
Difference between NIMAv8 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.