(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 | 191.973209 ± 0.024398 au |
| Eccentricity | 0.954454661 ± 0.000005695 |
| Inclination | 125.339348805 ± 0.000007618 ° |
| Longitude of ascending node | 276.016189 ± 0.000023 ° |
| Argument of perihelia | 152.902589 ± 0.000214 ° |
| Mean anomaly | 359.748086 ± 0.000049 ° |
| Orbital period | 2659.92 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 468861_2013LU28_nima_v7.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2023-05-23 |
| Number of observations used in the fit | 1296 |
| Number of rejected observations | 7 |
| Number of DES observations | 0 |
| Number of MPC observations | 968 |
| Number of unpublished observations | 335 |
| RMS of observations | 0.273 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.037 | 0.036 |
| 2022-07 | 0.033 | 0.034 |
| 2023-01 | 0.050 | 0.041 |
| 2023-07 | 0.059 | 0.057 |
| 2024-01 | 0.080 | 0.071 |
| 2024-07 | 0.108 | 0.122 |
| 2025-01 | 0.166 | 0.188 |
| 2025-07 | 0.173 | 0.233 |
| 2026-01 | 0.274 | 0.377 |
Ephemeris comparison
Difference between NIMAv7 and JPL28 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.