(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 | 41.946459 ± 0.001701 au |
| Eccentricity | 0.106360425 ± 0.000022298 |
| Inclination | 26.992039923 ± 0.000045628 ° |
| Longitude of ascending node | 20.918891 ± 0.000057 ° |
| Argument of perihelia | 69.210905 ± 0.010522 ° |
| Mean anomaly | 339.198648 ± 0.009541 ° |
| Orbital period | 271.68 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 24835_1995SM55_nima_v9.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2023-01-20 |
| Number of observations used in the fit | 329 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 313 |
| Number of unpublished observations | 21 |
| RMS of observations | 0.358 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.078 | 0.069 |
| 2023-07 | 0.103 | 0.068 |
| 2024-01 | 0.088 | 0.078 |
| 2024-07 | 0.122 | 0.075 |
| 2025-01 | 0.101 | 0.088 |
| 2025-07 | 0.144 | 0.083 |
| 2026-01 | 0.119 | 0.100 |
| 2026-07 | 0.169 | 0.092 |
| 2027-01 | 0.141 | 0.113 |
Ephemeris comparison
Difference between NIMAv9 and JPL26 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.