(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 | 8.30 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459000.5 |
| Semi major axis | 187.042319 ± 0.035172 au |
| Eccentricity | 0.953295337 ± 0.000008601 |
| Inclination | 125.350447406 ± 0.000016243 ° |
| Longitude of ascending node | 275.966511 ± 0.000061 ° |
| Argument of perihelia | 153.000803 ± 0.000451 ° |
| Mean anomaly | 359.428905 ± 0.000163 ° |
| Orbital period | 2558.10 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 468861_2013LU28_nima_v2.bsp |
| Date of first observation | 2013-06-08 |
| Date of last observation | 2021-01-19 |
| Number of observations used in the fit | 450 |
| Number of rejected observations | 4 |
| Number of DES observations | 0 |
| Number of MPC observations | 399 |
| Number of unpublished observations | 55 |
| RMS of observations | 0.304 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.065 | 0.072 |
| 2020-07 | 0.072 | 0.044 |
| 2021-01 | 0.065 | 0.062 |
| 2021-07 | 0.205 | 0.070 |
| 2022-01 | 0.192 | 0.097 |
| 2022-07 | 0.467 | 0.104 |
| 2023-01 | 0.554 | 0.113 |
| 2023-07 | 0.770 | 0.415 |
| 2024-01 | 1.027 | 0.573 |
Ephemeris comparison
Difference between NIMAv2 and JPL14 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.