(541132) Leleakuhonua
This object has a more recent orbit available here
Object
| Object | (541132) Leleakuhonua |
| Diameter(1) | 352 km |
| Dynamic class(1) | Sednoid |
| Absolute magnitude | 5.50 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 1095.971474 ± 113.611672 au |
| Eccentricity | 0.940746365 ± 0.006290874 |
| Inclination | 11.656990085 ± 0.004671969 ° |
| Longitude of ascending node | 300.812641 ± 0.053504 ° |
| Argument of perihelia | 118.169089 ± 0.271939 ° |
| Mean anomaly | 359.411707 ± 0.091059 ° |
| Orbital period | 36283.32 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 541132_Leleakuhonua_nima_v2.bsp |
| Date of first observation | 2015-10-13 |
| Date of last observation | 2018-10-20 |
| Number of observations used in the fit | 34 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 33 |
| Number of unpublished observations | 1 |
| RMS of observations | 0.294 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 | 0.329 | 0.185 |
| 2020-07 | 1.355 | 0.579 |
| 2021-01 | 0.863 | 0.429 |
| 2021-07 | 2.258 | 1.021 |
| 2022-01 | 1.639 | 0.813 |
| 2022-07 | 3.406 | 1.579 |
| 2023-01 | 2.651 | 1.318 |
| 2023-07 | 4.799 | 2.255 |
| 2024-01 | 3.903 | 1.943 |
Ephemeris comparison
Difference between NIMAv2 and JPL3 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.