(24835) 1995SM55
This object has a more recent orbit available here
Object
| Object | (24835) 1995SM55 |
| Diameter(1) | 701 km |
| Dynamic class(1) | Haumea |
| Absolute magnitude | 4.66 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 41.946398 ± 0.001657 au |
| Eccentricity | 0.106358701 ± 0.000021462 |
| Inclination | 26.992029308 ± 0.000038094 ° |
| Longitude of ascending node | 20.918881 ± 0.000052 ° |
| Argument of perihelia | 69.210742 ± 0.010342 ° |
| Mean anomaly | 339.198706 ± 0.009365 ° |
| Orbital period | 271.68 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv10 |
| Observation file |
omc_ast_NIMAv10.txt |
| bsp file | 24835_1995SM55_nima_v10.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2024-02-15 |
| Number of observations used in the fit | 379 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 316 |
| Number of unpublished observations | 68 |
| RMS of observations | 0.334 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) |
| 2023-01 | 0.052 | 0.049 |
| 2023-07 | 0.087 | 0.049 |
| 2024-01 | 0.058 | 0.056 |
| 2024-07 | 0.104 | 0.054 |
| 2025-01 | 0.069 | 0.065 |
| 2025-07 | 0.124 | 0.060 |
| 2026-01 | 0.086 | 0.075 |
| 2026-07 | 0.148 | 0.067 |
| 2027-01 | 0.107 | 0.087 |
Ephemeris comparison
Difference between NIMAv10 and JPL27 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.