(541132) Leleakuhonua
Object
| Object |
(541132) Leleakuhonua |
| Diameter(1) |
352 km |
| Dynamic class(1) |
Sednoid |
| Absolute magnitude |
5.57 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2459800.5 |
| Semi major axis |
1461.036253 ± 173.371827 au |
| Eccentricity |
0.955491237 ± 0.005402939 |
| Inclination |
11.659889940 ± 0.000697427 ° |
| Longitude of ascending node |
300.855874 ± 0.008446 ° |
| Argument of perihelia |
117.745415 ± 0.267385 ° |
| Mean anomaly |
359.642883 ± 0.062925 ° |
| Orbital period |
55846.98 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
541132_Leleakuhonua_nima_v3.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| Number of unpublished observations |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 NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2022-01 |
1.636 |
0.813 |
| 2022-07 |
3.403 |
1.575 |
| 2023-01 |
2.647 |
1.319 |
| 2023-07 |
4.795 |
2.250 |
| 2024-01 |
3.899 |
1.944 |
| 2024-07 |
6.438 |
3.042 |
| 2025-01 |
5.398 |
2.689 |
| 2025-07 |
8.338 |
3.954 |
| 2026-01 |
7.150 |
3.553 |
Ephemeris comparison
Difference between NIMAv3 and JPL4 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.
Previous NIMA versions