(58931) Palmys
This object has a more recent orbit available here
Object
| Object | (58931) Palmys |
| Diameter(1) | 28 km |
| Dynamic class(1) | trojan |
| Absolute magnitude | 11.60 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 5.263093 ± 0.000001 au |
| Eccentricity | 0.100107997 ± 0.000000129 |
| Inclination | 16.409405679 ± 0.000011005 ° |
| Longitude of ascending node | 119.562436 ± 0.000037 ° |
| Argument of perihelia | 133.796638 ± 0.000113 ° |
| Mean anomaly | 293.777291 ± 0.000088 ° |
| Orbital period | 12.07 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 58931_Palmys_nima_v1.bsp |
| Date of first observation | 1993-01-21 |
| Date of last observation | 2018-11-09 |
| Number of observations used in the fit | 663 |
| Number of rejected observations | 1 |
| Number of DES observations | 18 |
| Number of MPC observations | 646 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.540 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.062 | 0.045 |
| 2018-07 | 0.050 | 0.033 |
| 2019-01 | 0.073 | 0.042 |
| 2019-07 | 0.068 | 0.035 |
| 2020-01 | 0.084 | 0.042 |
| 2020-07 | 0.097 | 0.045 |
| 2021-01 | 0.093 | 0.041 |
| 2021-07 | 0.134 | 0.059 |
| 2022-01 | 0.099 | 0.037 |
Ephemeris comparison
Difference between NIMAv1 and JPL19 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.