(136108) Haumea
This object has a more recent orbit available here
Object
| Object | (136108) Haumea |
| Diameter(1) | 1595 km |
| Dynamic class(1) | Haumea |
| Absolute magnitude | 0.26 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2457090.130412306 |
| Semi major axis | 43.241173 ± 0.000153 au |
| Eccentricity | 0.190732067 ± 0.000002909 |
| Inclination | 28.192040086 ± 0.000004995 ° |
| Longitude of ascending node | 121.796906 ± 0.000079 ° |
| Argument of perihelia | 240.088833 ± 0.001375 ° |
| Mean anomaly | 209.506661 ± 0.001963 ° |
| Orbital period | 284.35 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv10 |
| Observation file |
omc_ast_NIMAv10.txt |
| bsp file | 136108_Haumea_nima_v10.bsp |
| Date of first observation | 1955-03-22 |
| Date of last observation | 2022-05-11 |
| Number of observations used in the fit | 5376 |
| Number of rejected observations | 16 |
| Number of DES observations | 0 |
| Number of MPC observations | 3470 |
| Number of unpublished observations | 1845 |
| RMS of observations | 0.082 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv10 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.020 | 0.013 |
| 2022-07 | 0.021 | 0.013 |
| 2023-01 | 0.025 | 0.016 |
| 2023-07 | 0.026 | 0.016 |
| 2024-01 | 0.031 | 0.019 |
| 2024-07 | 0.031 | 0.019 |
| 2025-01 | 0.038 | 0.022 |
| 2025-07 | 0.037 | 0.022 |
| 2026-01 | 0.044 | 0.026 |
Ephemeris comparison
Difference between NIMAv10 and JPL90 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.