(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 | 4.60 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 41.594126 ± 0.001759 au |
| Eccentricity | 0.100271012 ± 0.000022433 |
| Inclination | 27.070788944 ± 0.000338756 ° |
| Longitude of ascending node | 21.067177 ± 0.000092 ° |
| Argument of perihelia | 71.832233 ± 0.012400 ° |
| Mean anomaly | 332.233820 ± 0.011616 ° |
| Orbital period | 268.26 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 24835_1995SM55_nima_v6.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2020-08-15 |
| Number of observations used in the fit | 279 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 263 |
| Number of unpublished observations | 21 |
| RMS of observations | 0.360 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.078 | 0.068 |
| 2020-07 | 0.101 | 0.069 |
| 2021-01 | 0.088 | 0.078 |
| 2021-07 | 0.120 | 0.079 |
| 2022-01 | 0.101 | 0.090 |
| 2022-07 | 0.142 | 0.089 |
| 2023-01 | 0.118 | 0.104 |
| 2023-07 | 0.168 | 0.101 |
| 2024-01 | 0.140 | 0.119 |
Ephemeris comparison
Difference between NIMAv6 and JPL17 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.