(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 | 41.593510 ± 0.002388 au |
| Eccentricity | 0.100265249 ± 0.000030449 |
| Inclination | 27.070825087 ± 0.000453692 ° |
| Longitude of ascending node | 21.067223 ± 0.000103 ° |
| Argument of perihelia | 71.837804 ± 0.016809 ° |
| Mean anomaly | 332.228787 ± 0.015768 ° |
| Orbital period | 268.25 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 24835_1995SM55_nima_v5.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2018-09-13 |
| Number of observations used in the fit | 172 |
| Number of rejected observations | 2 |
| Number of DES observations | 0 |
| Number of MPC observations | 163 |
| Number of unpublished observations | 11 |
| RMS of observations | 0.495 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.099 | 0.074 |
| 2018-07 | 0.098 | 0.075 |
| 2019-01 | 0.107 | 0.084 |
| 2019-07 | 0.117 | 0.085 |
| 2020-01 | 0.116 | 0.096 |
| 2020-07 | 0.139 | 0.097 |
| 2021-01 | 0.129 | 0.110 |
| 2021-07 | 0.165 | 0.110 |
| 2022-01 | 0.146 | 0.125 |
Ephemeris comparison
Difference between NIMAv5 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.