(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 | 41.946590 ± 0.001784 au |
| Eccentricity | 0.106361998 ± 0.000023221 |
| Inclination | 26.992052981 ± 0.000048953 ° |
| Longitude of ascending node | 20.918903 ± 0.000060 ° |
| Argument of perihelia | 69.210025 ± 0.011142 ° |
| Mean anomaly | 339.199426 ± 0.010082 ° |
| Orbital period | 271.68 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 24835_1995SM55_nima_v8.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2021-11-25 |
| Number of observations used in the fit | 311 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 295 |
| Number of unpublished observations | 21 |
| RMS of observations | 0.357 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.080 | 0.070 |
| 2022-07 | 0.105 | 0.070 |
| 2023-01 | 0.089 | 0.079 |
| 2023-07 | 0.123 | 0.078 |
| 2024-01 | 0.102 | 0.090 |
| 2024-07 | 0.145 | 0.086 |
| 2025-01 | 0.119 | 0.102 |
| 2025-07 | 0.170 | 0.096 |
| 2026-01 | 0.141 | 0.115 |
Ephemeris comparison
Difference between NIMAv8 and JPL24 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.