(24835) 1995SM55
Object
| Object |
(24835) 1995SM55 |
| Diameter(1) |
701 km |
| Dynamic class(1) |
Haumea |
| Absolute magnitude |
4.64 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460600.5 |
| Semi major axis |
42.140876 ± 0.001611 au |
| Eccentricity |
0.111098682 ± 0.000020725 |
| Inclination |
27.003809826 ± 0.000036908 ° |
| Longitude of ascending node |
20.946487 ± 0.000051 ° |
| Argument of perihelia |
69.692086 ± 0.009562 ° |
| Mean anomaly |
341.872746 ± 0.008477 ° |
| Orbital period |
273.57 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv11 |
| Observation file (documentation) |
omc_ast_NIMAv11.txt |
| bsp file |
24835_1995SM55_nima_v11.bsp |
| Date of first observation |
1982-09-16 |
| Date of last observation |
2024-02-15 |
| Number of observations used in the fit |
386 |
| Number of rejected observations |
5 |
| Number of DES observations |
0 |
| Number of MPC observations |
320 |
| Number of unpublished observations |
71 |
| RMS of observations |
0.331 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv11 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.055 |
0.053 |
| 2024-07 |
0.094 |
0.051 |
| 2025-01 |
0.064 |
0.061 |
| 2025-07 |
0.113 |
0.056 |
| 2026-01 |
0.078 |
0.070 |
| 2026-07 |
0.134 |
0.063 |
| 2027-01 |
0.098 |
0.081 |
| 2027-07 |
0.159 |
0.070 |
| 2028-01 |
0.122 |
0.093 |
Ephemeris comparison
Difference between NIMAv11 and JPL28 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