(24835) 1995SM55
Object
| Object |
(24835) 1995SM55 |
| Diameter(1) |
701 km |
| Dynamic class(1) |
Haumea |
| Absolute magnitude |
4.63 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
42.136309 ± 0.001600 au |
| Eccentricity |
0.111260637 ± 0.000020487 |
| Inclination |
27.015441435 ± 0.000036673 ° |
| Longitude of ascending node |
20.974395 ± 0.000050 ° |
| Argument of perihelia |
70.084444 ± 0.009547 ° |
| Mean anomaly |
342.262750 ± 0.008431 ° |
| Orbital period |
273.52 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv12 |
| Observation file (documentation) |
omc_ast_NIMAv12.txt |
| bsp file |
24835_1995SM55_nima_v12.bsp |
| Date of first observation |
1982-09-16 |
| Date of last observation |
2025-01-08 |
| Number of observations used in the fit |
411 |
| Number of rejected observations |
5 |
| Number of DES observations |
0 |
| Number of MPC observations |
345 |
| Number of unpublished observations |
71 |
| RMS of observations |
0.326 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv12 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.054 |
0.052 |
| 2024-07 |
0.093 |
0.050 |
| 2025-01 |
0.063 |
0.060 |
| 2025-07 |
0.111 |
0.056 |
| 2026-01 |
0.077 |
0.069 |
| 2026-07 |
0.132 |
0.062 |
| 2027-01 |
0.096 |
0.080 |
| 2027-07 |
0.157 |
0.069 |
| 2028-01 |
0.120 |
0.092 |
Ephemeris comparison
Difference between NIMAv12 and JPL32 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.
Previous NIMA versions