(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 ± 0.000000 au |
| Eccentricity | 0.100107858 ± 0.000000031 |
| Inclination | 16.409411995 ± 0.000001726 ° |
| Longitude of ascending node | 119.562440 ± 0.000005 ° |
| Argument of perihelia | 133.796592 ± 0.000016 ° |
| Mean anomaly | 293.777355 ± 0.000015 ° |
| Orbital period | 12.07 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 58931_Palmys_nima_v4.bsp |
| Date of first observation | 1993-01-21 |
| Date of last observation | 2022-05-10 |
| Number of observations used in the fit | 1772 |
| Number of rejected observations | 14 |
| Number of DES observations | 18 |
| Number of MPC observations | 1397 |
| Number of unpublished observations | 86 |
| RMS of observations | 0.118 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.008 | 0.003 |
| 2022-07 | 0.018 | 0.005 |
| 2023-01 | 0.016 | 0.004 |
| 2023-07 | 0.028 | 0.008 |
| 2024-01 | 0.023 | 0.007 |
| 2024-07 | 0.031 | 0.012 |
| 2025-01 | 0.029 | 0.010 |
| 2025-07 | 0.030 | 0.013 |
| 2026-01 | 0.033 | 0.013 |
Ephemeris comparison
Difference between NIMAv4 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.